FIELD OF THE INVENTION
[0001] Provided herein are novel compounds that are useful in the treatment of hyperproliferative
diseases, such as cancers, in mammals. In particular, the invention relates to compounds
that inhibit the protein tyrosine kinase activity, resulting in the inhibition of
inter- and/or intra-cellular signaling. Provided also herein are methods of using
such compounds in the treatment of hyperproliferative diseases in mammals, especially
humans, and pharmaceutical compositions containing such compounds.
BACKGROUND OF THE INVENTION
[0002] Protein kinases represent a large family of proteins, which play a pivotal role in
the regulation of a wide variety of cellular processes, maintaining control over cellular
function. Protein tyrosine kinases may be classified as growth factor receptor (e.g.
VEGFR, EGFR, PDGFR, FGFR and erbB2) or non-receptor (
e.
g. c-src and bcr-abl) kinases. The receptor type tyrosine kinases make up about 20
different subfamilies. The non-receptor type tyrosine kinases make up numerous subfamilies.
Receptor tyrosine kinases are large enzymes that span the cell membrane and possess
an extracellular binding domain for growth factors, a transmembrane domain, and an
intracellular portion that functions as a kinase to phosphorylate a specific tyrosine
residue in proteins and hence to influence cell proliferation. Aberrant or inappropriate
protein kinase activity can contribute to the rise of disease states associated with
such aberrant kinase activity.
[0003] A partial list of such kinases include abl, AATK, ALK, Akt, axl, bmx, bcr-abl, Blk,
Brk, Btk, csk, c-kit, c-Met, c-src, c-fins, CDK1, CDK2, CDK3, CDK4, CDK5, CDK6, CDK7,
CDK8, CDK9, CDK10, cRaf1, CSF1R, CSK, DDR1, DDR2, EPHA, EPHB, EGFR, ErbB2, ErbB3,
ErbB4, Erk, Fak, fes, FER, FGFR1, FGFR2, FGFR3, FGFR4, FGFR5, Fgr, flt-1, Fps, Frk,
Fyn, GSG2, GSK, Hck, ILK, INSRR, IRAK4, ITK, IGF-1R, INS-R, Jak, KSR1, KDR, LMTK2,
LMTK3, LTK, Lck, Lyn, MATK, MERTK, MLTK, MST1R, MUSK, NPR1, NTRK, MEK, PLK4, PTK,
p38, PDGFR, PIK, PKC, PYK2, RET, ROR1, ROR2, RYK, ros, Ron, SGK493, SRC, SRMS, STYK1,
SYK, TEC, TEK, TEX14, TNK1, TNK2, TNNI3K, TXK, TYK2, TYRO3, tie, tie2, TRK, Yes, and
Zap70. Inhibition of such kinases has become an important therapeutic target. Certain
diseases are known to be associated with deregulated angiogenesis, for example, ocular
neovascularisation, such as retinopathies (including diabetic retinopathy); age-related
macular degeneration; psoriasis; hemangioblastoma; hemangioma; arteriosclerosis; inflammatory
diseases, such as a rheumatoid or rheumatic inflammatory disease, especially arthritis
(including rheumatoid arthritis); or other chronic inflammatory disorders, such as
chronic asthma; arterial or post-transplantational atherosclerosis; endometriosis;
and neoplastic diseases, for example so-called solid tumors and liquid tumors (such
as leukemias).
[0004] Angiogenesis is an important component of certain normal physiological processes
such as embryogenesis and wound healing, but aberrant angiogenesis contributes to
some pathological disorders and in particular to tumor growth. VEGF-A (vascular endothelial
growth factor A) is a key factor promoting neovascularization (angiogenesis) of tumors.
VEGF induces endothelial cell proliferation and migration by signaling through two
high affinity receptors, the fms-like tyrosine kinase receptor, flt-1, and the kinase
insert domain-containing receptor, KDR. These signaling responses are critically dependent
upon receptor dimerization and activation of intrinsic receptor tyrosine kinase (RTK)
activity. The binding of VEGF as a disulfide-linked homodimer stimulates receptor
dimerization and activation of the RTK domain. The kinase activity autophosphorylates
cytoplasmic receptor tyrosine residues, which then serve as binding sites for molecules
involved in the propagation of a signaling cascade.
[0005] Disruption of VEGF receptor signaling is a highly attractive therapeutic target in
cancer, as angiogenesis is a prerequisite for all solid tumor growth, and that the
mature endothelium remains relatively quiescent (with the exception of the female
reproductive system and wound healing). A number of experiment approaches to inhibiting
VEGF signaling have been examined, including use of neutralizing antibodies receptor
antagonists, small molecule antagonists, antisense constructs and dominant negative
strategies ("
Molecular basis for sunitinib efficacy and future clinical development "Nature Review
Drug Discovery, 2007, 6, 734;
Angiogenesis: "an organizing principle for drug discovery?" Nature Review Drug Discovery,
2007, 6, 273).
[0006] Hepatocyte growth factor (HGF), also known as scatter factor, is a multifunctional
growth factor that enhances transformation and tumor development by inducing mitogenesis
and cell motility. In order to produce cellular effects, HGF must bind to its receptor,
c-Met, a receptor tyrosine kinase. c-Met is overexpressed in a significant percentage
of various types of human cancers and is often amplified during the transition between
primary tumors and metastasis. c-Met is also implicated in atherosclerosis and lung
fibrosis ("
Molecular cancer therapy: can our expectation be MET." Euro. J. Cancer, 2008, 44,
641 - 651). Invasive growth of certain cancer cells is drastically enhanced by tumor-stromal
interactions involving the HOF/c-Met (HGF receptor) pathway. Binding of HGF to c-Met
leads to receptor phosphorylation and activation of Ras/mitogen-activated protein
kinase (MAPK) signaling pathway, thereby enhancing malignant behaviors of cancer cells.
Moreover, stimulation of the HGF/c-Met pathway itself can lead to the induction of
VEGF expression, itself contributing directly to angiogenic activity ("
From Tpr-Met to Met, tumorigenesis and tubes." Oncogene. 2007, 26, 1276; "
Targeting the c-Met Signaling Pathway in Cancer." Clin. Cancer Res. 2006, 12, 3657; "
Drug development of MET inhibitors: targeting oncogene addiction and expedience."
Nature Review Drug Discovery, 2008, 7, 504).
[0007] Insulin-like growth factor 1 receptor (IGF1R) is an integral membrane tyrosine kinase
receptor that binds insulin-like growth factor (IGF) with high affinity. IGF1R plays
a critical role in transformation events and human cancer. It is highly over-expressed
in most malignant tissues where it functions as an anti-apototic agent by enhancing
cell survival through the PI3K pathway, and also the p53 pathway. IGF1R has been linked
to various disease states, such as breast and ovarian cancer, metastatic uveal melanoma,
macular degeneration, and intrauterine growth retardation and poor postnatal growth,
among others ("
IGF1R signaling and its inhibition." Endocrine-Related Cancer, 2006,13, S33-S43; "
The new kid on the block(ade) of the IGF-1 receptor." Cancer Cell, 2004, 5, 201.).
[0008] Anti-tumor approaches that target VEGF/VEGFR, HGF/c-Met and/or IGF/IGF1R signaling
may circumvent the ability of tumor cells to overcome VEGFR, HGFR or IGF1R inhibition
alone and may represent improved cancer therapeutics. Here we describe small molecules
that are potent inhibitors of protein tyrosine kinase activity, such as that of, for
example, the VEGF receptor KDR, the HGF receptor c-Met, and/or the IGF receptor IGF1R,
among others.
[0009] From
WO 2006/116713 A1 substituted amide derivatives are known as protein kinase inhibitors. From
US 2004/242603 A1 quinoline derivatives and quinazoline derivatives are known which have antitumor
activity. From
US 2007/244116 A1 c-MET modulators are known for modulating protein kinase enzymatic activity for modulating
cellular activities such as proliferation, differentiation, programmed cell death,
migration and chemoinvasion.
[0010] WO 2007/059257 discloses type I receptor tyrosine kinase inhibitors and their use in the treatment
of hyperproliferative disorders in mammals.
[0011] WO 2007/084875 pertains to compounds for use as medicaments for inbhibiting tyrosine kinase reducing
effects in warm-blooded animals such as humans.
SUMMARY OF THE INVENTION
[0012] A compound according to independent claims 1 and 16, a pharmaceutical composition
according to independent claim 11 and a method according to independent claim 14 are
provided. The dependent claims provide advantageous embodiments.
[0013] The compounds disclosed herein may be inhibitors of protein tyrosine kinase activity.
Some of the compounds disclosed herein are multiple function inhibitors, capable of
inhibiting, for example, VEGF, HGF and/or IGF receptor signaling. Accordingly, provided
herein are new inhibitors of protein tyrosine kinase receptor signaling, such as for
example, VEGF receptor signaling, HGF receptor signaling, and/or IGF receptor signaling,
including the VEGF receptor KDR, the HGF receptor c-Met, and/or IGF1R.
[0014] Specifically, it has been found that compounds disclosed herein, and pharmaceutically
acceptable compositions thereof, are effective as inhibitors of receptor tyrosine
kinases, especially c-Met, KDR and/or IGF1R. In one aspect, provided herein are compounds
having Formula (I) as shown below:

or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate,
a pharmaceutically acceptable salt thereof, wherein
Q1 is formula (IIa) or (IIb):

Q2 is Formula (III):

R1 is selected from








wherein each of X4 and X4' is independently (CR4R4a)m, NR5, O, S, S=O or SO2; each of m and n is independently 0, 1 or 2; and t is 1,2 or 3;
R2 is H, halo, cyano(CN), R5aR5N-C1-6 alkoxy, C1-6 alkoxy, C1-6 hydroxyalkoxy, C1-6 aminoalkoxy, C1-6 hydroxy-substituted aminoalkoxy, C1-6 haloalkoxy, C1-6 alkylamino C1-6 alkoxy, C1-6 alkoxy C1-6 alkoxy, C4-10 heterocyclyloxy C1-6 alkoxy, C5-12 fused bicyclyl, C5-12 fused bicyclyl C1-6 aliphatic, C5-12 fused heterobicyclyl C1-6 aliphatic, C5-12 fused bicycloxy, C5-12 fused bicyclylamino, C5-12 fused bicycloxo C1-6 alkoxy, C5-12 fused bicyclylamino C1-6 alkoxy, C5-12 fused bicyclyl-C(=O)-, C5-12 fused bicyclyl-C(=O)O-, C5-12 fused heterobicyclyl-C(=O)-, C5-12 fused heterobicyclyl-C(=O)O-, C5-12 fused bicyclylamino-C(=O)-, C5-12 fused heterobicyclylamino-C(=O)-, C5-12 fused bicyclyl-C(=O)NR5-, C5-12 fused heterobicyclyl-C(=O)NR5-, C5-12 spiro bicyclyl, C5-12 spiro bicycloxy, C5-12 spiro bicyclylamino, C5-12 spiro bicycloxo C1-6 alkoxy, C5-12 spiro bicyclylamino C1-6 alkoxy, C5-12 fused heterobicyclyl, C5-12 fused hetembicycloxy, C5-12 fused heterobicyclylamino, C5-12 fused heterobicycloxo C1-6 alkoxy, C5-12 fused heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl, C5-12 spiro heterobicyclyl, C5-12 spiro bicyclyl C1-6 aliphatic, C5-12 spiro heterobicyclyl C1-6 aliphatic, C5-12 spiro heterobicycloxo C1-6 alkoxy, C5-12 spiro heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl -C(=O)-, C5-12 spiro bicyclyl-C(=O)O-, C5-12 spiro heterobicyclyl-C(=O)-, C5-12 spiro heterobicyclyl-C(=O)O-, C5-12 spiro bicyclylamino-C(=O)-, C5-12 spiro heterobicyclylamino-C(=O)-, C5-12 spiro bicyclyl-C(=O)NR5-, or C5-12 spiro heterobicyclyl-C(=O)NR5-, C6-10 aryl, C1-10 heteroaryl, C6-10 aryl C1-6 aliphatic or C1-10 heteroaryl C1-6 aliphatic;
wherein R3 is independently H, F, Cl, Br, -CN, C1-3 aliphatic, C1-3 alkoxy, or C1-3 haloalkyl;
each of U1 and U2 is independently CR4 or N;
V is NR5R5a, OR5;
V1 is O or NR5;
each of V2, V3 and V4 is independently CR4R4a, NR5, CR4 or N, with the proviso that only one of V2, V3, and V4 is NR5 or N, or V2 and V3 or V3 and V4 combine to become CR4R4a, NR5, O, CR4 or N, with the proviso that the resulted structure is stable;
each of W1, W2, W3 and W4 is independently CR4R4a, NR5, CR4 or N, or W1 and W2 or W3 and W4 combine to become CR4R4a, NR5, O or S;
X1 is (CR4R4a)m, NR5, O, S, S=O or SO2, where m is 0, 1 or 2;
each of X2 and X3 is independently O, S or NR5;
Z is -NR5C(=O)-(CR4R4a)p-, -NR5C(=S)-(CR4R4a)p-, -NR5a-(CR4R4a)p-, -NR5-(CR4R4a)pC(=O)-, -NR5-(CR4R4a)pC(=S)-, -NR5S(=O)r-, -NR5S(=O)r(CR4R4a)p-,-C(=O)NR5(CR4R4a)p- or -NR5-(CR4R4a)pS(=O)r-, where p is 0,1,2 or 3 and r is 1 or 2;
each of Z1 and Z2 is independently NR5 or CR4R4a;
each of R4 and R4a is independently H, F, Cl, Br, I, -CN, hydroxyl, -NR5aR5, with the proviso that where R4 and R4a are bonded to the same carbon atom, R4 and R4a, together with the carbon atom they are attached to, optionally form a 3-8 membered
carbocyclic or heterocyclic ring;
each of R5 and R5a is independently H, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aNS(=O)-, R6OS(=O), R6S(=O)-, R6R6aNSO2-, R6OSO2-, R6SO2-, with the proviso that where R5 and R5a are bonded to the same nitrogen atom, R5 and R5a, together with the nitrogen atom they are attached to, optionally form a 3-8 membered
ring, including spiro and fused bicyclic rings;
each of R6 and R6a is H.
[0015] In an embodiment, Z of formula (IIa) is -NHC(=O)-, Z
1 of formula (IIb) is NH; and the substructure defined by X
2, U
1 and R
3 of Formula I is:

[0016] In an embodiment the compound further has Formula (IV):

or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate,
or a pharmaceutically acceptable salt thereof, wherein:
Q2 has formula (III):

R1 is selected from








wherein each of X4 and X4' is independently (CR4R4a)m, NR5, O, S, S=O or SO2; each of m and n is independently 0,1 or 2; and t is 1, 2 or 3;
R2 is H, halo, cyano(CN), R5aR5N-C1-6 alkoxy, C1-6 alkoxy, C1-6 hydroxyalkoxy, C1-6 aminoalkoxy, C1-6 hydroxy-substituted aminoalkoxy, C1-6 haloalkoxy, C1-6 alkylamino C1-6 alkoxy, C1-6 alkoxy C1-6 alkoxy, C4-10 heterocyclyloxy C1-6 alkoxy, C5-12 fused bicyclyle, C5-12 fused bicyclyl C1-6 aliphatic, C5-12 fused heterobicyclyl C1-6 aliphatic, C5-12 fused bicycloxy, C5-12 fused bicyclylamino, C5-12 fused bicycloxo C1-6 alkoxy, C5-12 fused bicyclylamino C1-6 alkoxy, C5-12 fused bicyclyl-C(=O)-, C5-12 fused bicyclyl-C(=O)O-, C5-12 fused heterobicyclyl-C(=O)-, C5-12 fused heterobicyclyl-C(=O)O-, C5-12 fused bicyclylamino-C(=O)-, C5-12 fused heterobicyclylamino-C(=O)-, C5-12 fused bicyclyl-C(=O)NR5-, C5-12 fused heterobicyclyl-C(=O)NR5-, C5-12 spiro bicyclyl, C5-12 spiro bicycloxy, C5-12 spiro bicyclylamino, C5-12 spiro bicycloxo C1-6 alkoxy, C5-12 spiro bicyclylamino C1-6 alkoxy, C5-12 fused heterobicyclyl, C5-12 fused heterobicycloxy, C5-12 fused heterobicyclylamino, C5-12 fused heterobicycloxo C1-6 alkoxy, C5-12 fused heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl, C5-12 spiro heterobicyclyl, C5-12 spiro bicyclyl C1-6 aliphatic, C5-12 spiro heterobicyclyl C1-6 aliphatic, C5-12 spiro hetembicycloxo C1-6 alkoxy, C5-12 spiro heterobicyclylamino C1-6- alkoxy, C5-12 spiro bicyclyl -C(=O)-, C5-12 spiro bicyclyl-C(=O)O-, C5-12 spiro heterobicyclyl-C(=O)-, C5-12 spiro heterobicyclyl-C(=O)O-, C5-12 spiro bicyclylamino-C(=O)-, C5-12 spiro heterobicyclylamino-C(=O)-, C5-12 spiro bicyclyl-C(=O)NR5-, or C5-12 spiro heterobicyclyl-C(=O)NR5-, C6-10 aryl, C1-10 heteroaryl, C6-10 aryl C1-6 aliphatic or C1-10 heteroaryl C1-6 aliphatic;
wherein R3 is independently H, F, Cl, Br, -CN, C1-3 aliphatic, C1-3 alkoxy, or C1-3 haloalkyl;
each of U1 and U2 is independently CR4 or N;
V is NR5R5a, OR5;
V1 is O or NR5;
each of V2, V3 and V4 is independently CR4R4a, NR5, CR4 or N, with the proviso that only one of V2, V3, and V4 is NR5 or N, or V2 and V3 or V3 and V4 combine to become CR4R4a, NR7, O, CR4 or N, with the proviso that the resulted structure is stable;
each of W1, W2, W3 and W4 is independently CR4R4a, NR5, CR4 or N, or W1 and W2 or W3 and W4 combine to become CR4R4a, NR5, O or S;
X1 is (CR4R4a)m, NR5, O, S, S=O or SO2, where m is 0, 1 or 2;
X2 is independently O, S or NR5;
Z is -NR5C(=O)-(CR4R4a)p-, -NR5C(=S)-(CR4R4a)p-, -NR5a-(CR4R4a)p-, -NR5-(CR4R4a)pC(=O)-, -NR5-(CR4R4a)pC(=S)-, -NR5S(=O)r-, -NR5S(=O)r(CR4R4a)p-,-C(=O)NR5(CR4R4a)p- or -NR5(CR4R4a)pS(=O)r-, where p is 0,1,2 or 3 and r is 1 or 2;
each of R4 and R4a is independently H, F, Cl, Br, I, -CN, hydroxyl, -NR5aR5, with the proviso that where R4 and R4a are bonded to the same carbon atom, R4 and R4a, together with the carbon atom they are attached to, optionally form a substituted
or unsubstituted 3-8 membered carbocyclic or heterocyclic ring;
each of R5 and R5a is independently H, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aNS(=O)-, R6OS(=O)-, R6S(=O)-, R6R6aNSO2-, R6OSO2-, R6SO2-, with the proviso that where R5 and R5a are bonded to the same nitrogen atom, R5 and R5a, together with the nitrogen atom they are attached to, optionally form a 3-8 membered
ring, including spiro and fused bicyclic rings;
each of R6 and R6a is independently H;
wherein each of R5aR5N-, -C(=O)NR5R5a, -OC(=O)NR5R5a, -OC(=O)OR5,-NR5C(=O)NR5R5a, -NR5C(=O)OR5a, -NR5C(=O)-R5a, R5R5aN-O2S-, R5O2S-, R5O2SR5aN-, OR7, NR5, CR4R4a, CR4, (CR4R4a)m, -NR5C(O)-(CR4R4a)p-, -NR5C(=S)-(CR4R4a)p-, -NR5a-(CR4R4a)p-, -NR5CR4R4a)pC(=O)-, -NR5-(CR4R4a)pC(=S)-, -NR5S(O)r,-NR5S(=O)(CR4R4a)p-, -C(=O)NR5-(CR4R4a)p-, -NR5-(CR4R4a)p-S(=O)r-, R5aR5N-alkyl, R5(S=O)-alkyl, R5R5aN-(C=O)-alkyl, R5aR5N-alkoxy, R5(S=O)-alkoxy, R5R5aN-(C=O)-alkoxy, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aNS(=O)-, R6OS(=O)-, R6S(=O)-, R6R6aNSO2-, R6OSO2-, R6SO2-, hydroxy-substituted cyclopropylalkoxy, R5S(=O)2O-substituted cyclopropylalkoxy. Preferably, Z is -NHC(=O)-; or
wherein the substructure defined by X1, Z, U1 and R3 is

[0017] In certain embodiments, the compound has Formula V:

or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate,
or a pharmaceutically acceptable salt thereof, wherein:
Q2 has Formula (III):

R1 is selected from








wherein each of X4 and X4' is independently (CR4R4a)m, NR5, O, S, S=O or SO2; each of m and n is independently 0, 1 or 2; and t is 1,2 or 3;
R2 is H, halo, cyano(CN), R5aR5N-C1-6 alkoxy, C1-6 alkoxy, C1-6 hydroxyalkoxy, C1-6 aminoalkoxy, C1-6 hydroxy-substituted aminoalkoxy, C1-6 haloalkoxy, C1-6 alkylamino C1-6 alkoxy, C1-6 alkoxy C1-6 alkoxy, C4-10 heterocyclyloxy C1-6 alkoxy, C5-12 fused bicyclyl, C5-12 fused bicyclyl C1-6 aliphatic, C5-12 fused heterobicyclyl C1-6 aliphatic, C5-12 fused bicycloxy, C5-12 fused bicyclylamino, C5-12 fused bicycloxo C1-6 alkoxy, C5-12 fused bicyclylamino C1-6 alkoxy, C5-12 fused bicyclyl-C(=O)-, C5-12 fused bicyclyl-C(=O)O-, C5-12 fused heterobicyclyl-C(=O)-, C5-12 fused heterobicyclyl-C(=O)O-, C5-12 fused bicyclylamino-C(=O)-, C5-12 fused heterobicyclylamino-C(=O)-, C5-12 fused bicyclyl-C(=O)NR5-, C5-12 fused heterobicyclyl-C(=O)NR5-, C5-12 spiro bicyclyl, C5-12 spiro bicycloxy, C5-12 spiro bicyclylamino, C5-12 spiro bicycloxo C1-6 alkoxy, C5-12 spiro bicyclylamino C1-6 alkoxy, C5-12 fused heterobicyclyl, C5-12 fused heterobicycloxy, C5-12 fused heterobicyclylamino, C5-12 fused heterobicycloxo C1-6 alkoxy, C5-12 fused heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl, C5-12 spiro heterobicyclyl, C5-12 spiro bicyclyl C1-6 aliphatic, C5-12 spiro heterobicyclyl C1-6 aliphatic, C5-12 spiro heterobicycloxo C1-6 alkoxy, C5-12 spiro heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl -C(=O)-, C5-12 spiro bicyclyl-C(=O)O-, C5-12 spiro heterobicyclyl-C(=O)-, C5-12 spiro heterobicyclyl-C(=O)O-, C5-12 spiro bicyclylamino-C(=O)-, C5-12 spiro heterobicyclylamino-C(=O)-, C5-12 spiro bicyclyl-C(=O)NR5-, or C5-12 spiro heterobicyclyl-C(=O)NR5-, C6-10 aryl, C1-10 heteroaryl, C6-10 aryl C1-6 aliphatic or C1-10 heteroaryl C1-6 aliphatic;
wherein R3 is independently H, F, Cl, Br, -CN, C1-3 aliphatic, C1-3 alkoxy, or C1-3 haloalkyl;
each of U1 and U2 is independently CR4 or N;
V is NR5R5a, OR5;
each of W1, W2, W3 and W4 is independently CR4R4a, NR5, CR4 or N, or W1 and W2 or W3 and W4 combine to become CR4R4a, NR5, O or S;
X1 is (CR4R4a)m, NR5, O, S, S=O or SO2, where m is 0, 1 or 2;
each of X2 and X3 is independently O, S or NR5;
each of Z1 and Z2 is independently NR5 or CR4R4a;
each of R4 and R4a is independently H, F, Cl, Br, I, -CN, hydroxyl, -NR5aR5, with the proviso that where R4 and R4a are bonded to the same carbon atom, R4 and R4a, together with the carbon atom they are attached to, optionally form a substituted
or unsubstituted 3-8 membered carbocyclic or heterocyclic ring;
each of R5 and R5a is independently H, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aS(=O)-, R6OS(O)-, R6S(=O)-, R6R6aNSO2-, R6OSO2-, R6SO2-, with the proviso that where R5 and R5a are bonded to the same nitrogen atom, R5 and R5a, together with the nitrogen atom they are attached to, optionally form a substituted
or unsubstituted 3-8 membered ring, including spiro and fused bicyclic rings;
each of R6 and R6a is independently H;
wherein each of R5aR5N-, -C(=O)NR5R5a, -OC(=O)NR5R5a, -OC(=O)OR5,-NR5C(=O)NR5R5a, -NR5C(=O)OR5a, -NR5C(=O)-R5a, R5R5aO2S-, R5O2S-, R5O2SR5aN-, OR5, -NR5, CR4R4a, CR4, (CR4R4a)m, -NR5C(O)-(CR4R4a)p-, -NR5C(=S)-(CR4R4a)p-, -NR5a-(CR4R4a)p-, -NR5-(CR4R4a)pC(=O)-, -NR5-(CR4R4a)pC(=S)-, -NR5S(O)r-,-NR5S(=O)(CR4R4a)p-, -C(=O)NR5-(CR4R4a)p-, -NR5-(CR4R4a)p-S(=O)r-, R5aR5N-alkyl, R5(S=O)-alkyl, R5R5aN-(C=O)-alkyl, R5aR5N-alkoxy, R5(S=O)-alkoxy, R5R5aN-(C=O)-alkoxy, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aNS(=O)-, R6OS(=O)-, R6S(=O)-, R6R6aNSO2-, R6OSO2-, R6SO2-, hydroxy-substituted cyclopropylalkoxy, R5S(=O)2O-substituted cyclopropylalkoxy.
[0018] Preferably, the substructure defined by X
1, U
1 and R
3 is

and/or
wherein R1 is one of the following structures:



wherein each of X4 and X4' is independently (CR4R4a)m, NR5, O, S, S=O or SO2; each of m and n is independently 0, 1 or 2; and t is 1, 2 or 3.
[0019] In other embodiments, Q
1 in Formula I or the substructure defined by X
2, V
1, V
2, V
3, V
4 and Z of Formula (IV) is

wherein R
3a is H, F, Cl, Br, I, -CN, hydroxyl, R
5aR
5N-, R
5aR
5N-aliphatic.
[0020] In some embodiments, R
1 is one of the following structures:

and

wherein each of X
4 and X
4' is independently (CR
4R
4a)
m, NR
5, O, S, S=O or SO
2; each of m and n is independently 0, 1 or 2; and t is 1,2 or 3.
[0021] In certain embodiments, Q
1 in Formula (I) or the substructure defined by Z
1, Z
2, X
2, X
3 and V of Formula (V) is

wherein Ar is substituted or unsubstituted aryl or heteroaryl; and s is 0 or 1
[0023] The present invention further provides a pharmaceutical composition comprising a
compound disclosed herein above, and a pharmaceutically acceptable carrier, excipient,
diluent, adjuvant, vehicle or a combination thereof, and optionally a therapeutic
agent selected from a chemotherapeutic agent, an anti-proliferative agent, an agent
for treating atherosclerosis, an agent for treating lung fibrosis, and combinations
thereof; wherein the additional therapeutic agent is optionally adriamycin, rapamycin,
temsirolimus, everolimus, ixabepilone, gemcitabin, cyclophosphamide, dexamethasone,
etoposide, fluorouracil, imatinib mesylate, dasatinib, nilotinib, erlotinib, lapatinib,
iressa, sorafenib, sunitinib, an interferon, carboplatin, topotecan, taxol, vinblastine,
vincristine, temozolomide, tositumomab, trabectedin, bevacizumab, trastuzumab, cetuximab,
panitumumab or a combination thereofAccording to a further aspect, the compound disclosed
herein above or the pharmaceutical composition is for use in preventing, managing,
treating or lessening the severity of a proliferative disorder. The proliferative
disorder preferably is metastatic cancer, colon cancer, gastric adenocarcinoma, bladder
cancer, breast cancer, kidney cancer, liver cancer, lung cancer, thyroid cancer, cancer
of the head and neck, prostate cancer, pancreatic cancer, cancer of the CNS, glioblastoma,
or a myeloproliferative disorder, atherosclerosis or lung fibrosis
[0024] According to a further aspect, the present invention provides a method of inhibiting
or modulating protein kinase activity in a biological sample comprising contacting
a biological sample with the compound disclosed herein above or the pharmaceutical
composition disclosed herein above. Preferably, the protein kinases are receptor tyrosine
kinases, and the receptor tyrosine kinases are KDR, c-Met or IGF1R
[0026] The foregoing merely summarizes certain aspects disclosed herein and is not intended
to be limiting in nature. These aspects and other aspects and embodiments are described
more fully below.
DETAILED DESCRIPTION OF THE INVENTION
DEFINITIONS AND GENERAL TERMINOLOGY
[0027] Reference will now be made in detail to certain embodiments disclosed herein, examples
of which are illustrated in the accompanying structures and formulas. One skilled
in the art will recognize many methods and materials similar or equivalent to those
described herein, which could be used in the practice disclosed herein. Described
herein is in no way limited to the methods and materials.
[0028] As used herein, the following definitions shall be applied unless otherwise indicated.
For purposes disclosed herein, the chemical elements are identified in accordance
with the Periodic Table of the Elements, CAS version, and the
Handbook of Chemistry and Physics, 75th Ed. 1994. Additionally, general principles of organic chemistry are described in "
Organic Chemistry", Thomas Sorrell, University Science Books, Sausalito: 1999, and "
March's Advanced Organic Chemistry" by Michael B. Smith and Jerry March, John Wiley
& Sons, New York: 2007.
[0029] As described herein, compounds may optionally be substituted with one or more substituents,
such as are illustrated generally above, or as exemplified by particular classes,
subclasses, and species disclosed herein. It will be appreciated that the phrase "optionally
substituted" is used interchangeably with the phrase "substituted or unsubstituted".
In general, the term "substituted" whether it is preceded by the term "optionally"
or not, refers to the replacement of one or more hydrogen radicals in a given structure
with the radical of a specified substituent. Unless otherwise indicated, an optionally
substituted group may have a substituent at each substitutable position of the group.
When more than one position in a given structure can be substituted with more than
one substituent selected from a specified group, the substituent may be either the
same or different at each position.
[0030] The term "aliphatic" or "aliphatic group" as used herein, refers to a straight-chain
(
i.e., unbranched) or branched, substituted or unsubstituted hydrocarbon chain that is
completely saturated or that contains one or more units of unsaturation. Unless otherwise
specified, aliphatic groups contain 1-20 carbon atoms. Aliphatic groups may contain
1-10 carbon atoms. Aliphatic groups may also contain 1-8 carbon atoms. Alternatively,
aliphatic groups may contain 1-6 carbon atoms, or 1-4 carbon atoms. Suitable aliphatic
groups include, but are not limited to, linear or branched, substituted or unsubstituted
alkyl, alkenyl, or alkynyl groups.
[0031] The term "alkyl" as used herein refers to a saturated linear or branched-chain monovalent
hydrocarbon radical of one to twenty carbon atoms, wherein the alkyl radical may be
optionally substituted independently with one or more substituents described below.
Further examples of aliphatic groups include, but are not limited to, methyl (Me,
-CH
3), ethyl (Et, -CH
2CH
3), 1-propyl (n-Pr, n-propyl, -CH
2CH
2CH
3), 2-propyl (i-Pr, i-propyl, -CH(CH
3)
2), 1-butyl (n-Bu, n-butyl, -CH
2CH
2CH
2CH
3), 2-methyl-1-propyl (i-Bu, i-butyl, -CH
2CH(CH
3)
2), 2-butyl (s-Bu, s-butyl, -CH(CH
3)CH
2CH
3), 2-methyl-2-propyl (t-Bu, t-butyl, -C(CH
3)
3), 1-pentyl (n-pentyl, -CH
2CH
2CH
2CH
2CH
3), 2-pentyl (-CH(CH
3)CH
2CH
2CH
3), 3-pentyl (-CH(CH
2CH
3)
2), 2-methyl-2-butyl (-C(CH
3)
2CH
2CH
3), 3-methyl-2-butyl (-CH(CH
3)CH(CH
3)
2), 3-methyl-1-butyl (-CH
2CH
2CH(CH
3)
2), 2-methyl-1-butyl (-CH
2CH(CH
3)CH
2CH
3), 1-hexyl (-CH
2CH
2CH
2CH
2CH
2CH
3), 2-hexyl (-CH(CH
3)CH
2CH
2CH
2CH
3), 3-hexyl (-CH(CH
2CH
3)(CH
2CH
2CH
3)), 2-methyl-2-pentyl (-C(CH
3)
2CH
2CH
2CH
3), 3-methyl-2-pentyl (-CH(CH
3)CH(CH
3)CH
2CH
3), 4-methyl-2-pentyl (-CH(CH
3)CH
2CH(CH
3)
2), 3-methyl-3-pentyl (-C(CH
3)(CH
2CH
3)
2), 2-methyl-3-pentyl (-CH(CH
2CH
3)CH(CH
3)
2), 2,3-dimethyl-2-butyl (-C(CH
3)
2CH(CH
3)
2), 3,3-dimethyl-2-butyl (-CH(CH
3)C(CH
3)
3,1-heptyl, 1-octyl, and the like. The terms "alkyl" and the prefix "alk-" as used
herein, are inclusive of both straight chain and branched saturated carbon chain.
The term "alkylene", as used herein, represents a saturated divalent hydrocarbon group
derived from a straight or branched chain saturated hydrocarbon by the removal of
two hydrogen atoms, and is exemplified by methylene, ethylene, isopropylene, and the
like.
[0032] The term "alkenyl" refers to linear or branched-chain monovalent hydrocarbon radical
of two to twelve carbon atoms with at least one site of unsaturation,
i.e., a carbon-carbon, sp
2 double bond, wherein the alkenyl radical may be optionally substituted independently
with one or more substituents described herein, and includes radicals having "cis"
and "trans" orientations, or alternatively, "E" and "Z" orientations. Examples include,
but are not limited to, ethylenyl or vinyl (-CH=CH
2), allyl (-CH
2CH-CH
2), and the like.
[0033] The term "alkynyl" refers to a linear or branched monovalent hydrocarbon radical
of two to twelve carbon atoms with at least one site of unsaturation,
i.e., a carbon-carbon, sp triple bond, wherein the alkynyl radical may be optionally substituted
independently with one or more substituents described herein. Examples include, but
are not limited to, ethynyl (-C≡CH), propynyl (propargyl, -CH
2C≡CH), and the like.
[0034] The term "cycloaliphatic" (or "carbocycle", "carbocyclyl", "carbocyclic ring" and
"cycloalkyl") refers to a monovalent or multivalent non-aromatic, saturated or partially
unsaturated ring having 3 to 12 carbon atoms as a monocyclic ring or 7 to 12 carbon
atoms as a bicyclic ring. Bicyclic carbocycles having 7 to 12 atoms can be arranged,
for example, as a bicyclo [4,5], [5,5], [5,6] or [6,6] system, and bicyclic carbocycles
having 9 or 10 ring atoms can be arranged as a bicyclo [5,6] or [6,6] system. Suitable
cycloaliphatic groups include, but are not limited to, cycloalkyl, cycloalkenyl, and
cycloalkynyl. Further examples of cycloaliphatic groups include cyclopropyl, cyclobutyl,
cyclopentyl, 1-cyclopent-1-enyl, 1-cyclopent-2-enyl, 1-cyclopent-3-enyl, cyclohexyl,
1-cyclohex-1-enyl, 1-cyclohex-2-enyl, 1-cyclohex-3-enyl, cyclohexadienyl, cycloheptyl,
cyclooctyl, cyclononyl, cyclodecyl, cycloundecyl, cyclododecyl, and the like.
[0035] The term "heterocycle", "heterocyclyl", "heterocycloaliphatic", or "heterocyclic"
as used interchangeably herein refers to a monocyclic, bicyclic, or tricyclic ring
system in which one or more ring members are an independently selected heteroatom
and that is completely saturated or that contains one or more units of unsaturation,
but which is not aromatic, that has a single point of attachment to the rest of the
molecule. One or more ring atoms are optionally substituted independently with one
or more substituents described below. The "heterocycle", "heterocyclyl", "heterocycloaliphatic"
or "heterocyclic" group may be a monocycle having 3 to 7 ring members (
e.g., 1 to 6 carbon atoms and 1 to 3 heteroatoms selected from N, O, P or S, wherein the
S or P is optionally substituted with one or more oxo to provide the group SO or SO
2, PO or PO
2, with the proviso that when the ring is a 3-membered ring, there is only one heteroatom)
or a bicycle having 7 to 10 ring members (
e.g., 4 to 9 carbon atoms and 1 to 3 heteroatoms selected from N, O, P or S, wherein
the S or P is optionally substituted with one or more oxo to provide the group SO
or SO
2, PO or PO
2).
[0036] The heterocyclyl may be a carbon radical or heteroatom radical. "Heterocyclyl" also
includes radicals where heterocycle radicals are fused with a saturated, partially
unsaturated ring, or heterocyclic ring. Examples of heterocyclic rings include, but
are not limited to, pyrrolidinyl, tetrahydrofliranyl, dihydrofuranyl, tetrahydrothienyl,
tetrahydropyranyl, dihydropyranyl, tetrahydrothiopyranyl, piperidino, morpholino,
thiomorpholino, thioxanyl, piperazinyl, homopiperazinyl, azetidinyl, oxetanyl, thietanyl,
homopiperidinyl, oxepanyl, thiepanyl, oxazepinyl, diazepinyl, thiazepinyl, 2-pyrrolinyl,
3-pyrrolinyl, indolinyl, 2H-pyranyl, 4H-pyranyl, dioxanyl,1,3-dioxolanyl, pyrazolinyl,
dithianyl, dithiolanyl, dihydropyranyl, dihydrothienyl, dihydrofuranyl, pyrazolidinylimidazolinyl,
imidazolidinyl, 1,2,3,4-tetrahydroisoquinolinyl, 3-azabicyco[3.1.0]hexanyl, 3-azabicyclo[4.1.0]heptanyl,
azabicyclo[2.2.2]hexanyl, 3H-indolyl quinolizinyl and N-pyridyl ureas. Some non-limiting
examples of a heterocyclic ring include 1,1-dioxo-thiomorpholinyl and heterocyclic
group wherein 2 carbon atoms on the ring are substituted with oxo (=O) moieties are
pyrimidindionyl. The heterocyclic groups herein are optionally substituted independently
with one or more substituents described herein.
[0037] The term "heterocyclylalkyl" refers to heterocyclic-substituted alkyl radical. The
term "heterocyclylalkoxy" refers to hetercyclic-substituted alkoxy radical wherein
oxygen atom serves as the attaching point to the rest of the molecule. The term "hetemcyclylalkylamino"
refers to heterocyclic-substituted alkylamino radical wherein nitrogen atom serves
as the attaching point to the rest of the molecule. The term "heterocyclyloxy" refers
to heterocyclic-substituted oxygen radical wherein oxygen atom serves as the attaching
point to the rest of the molecule. The terms "heterocyclylamino" and "heterocyclylalkylamino"
refers to heterocyclic-substituted nitrogen radical and heterocyclic- and alkyl-substituted
nitrogen radical wherein nitrogen atom serves as the attaching point to the rest of
the molecule.
[0038] The term "heteroatom" refers to one or more of oxygen, sulfur, nitrogen, phosphorus,
or silicon, including any oxidized form of nitrogen, sulfur, or phosphorus; the quatemized
form of any basic nitrogen; or a substitutable nitrogen of a heterocyclic ring, for
example, N (as in 3,4-dihydro-2H-pyrrolyl), NH (as in pyrrolidinyl) or NR (as in N-substituted
pyrrolidinyl).
[0039] The term "halogen" refers to F, Cl, Br or I.
[0040] The term "unsaturated" as used herein, refers to that a moiety has one or more units
of unsaturation.
[0041] The term "alkoxy," as used herein, refers to an alkyl group, as previously defined,
attached to the principal carbon chain through an oxygen ("alkoxy") atom.
[0042] The terms "haloalkyl", "haloalkenyl" or "haloalkoxy" refers to alkyl, alkenyl, or
alkoxy, as the case may be, substituted with one or more halogen atoms.
[0043] The term "aryl" used alone or as part of a larger moiety as in "aralkyl", "aralkoxy"
or "aryloxyalkyl" refers to monocyclic, bicyclic, and tricyclic carbocyclic ring systems
having a total of six to fourteen ring members, wherein at least one ring in the system
is aromatic, wherein each ring in the system contains 3 to 7 ring members and that
has a single point of attachment to the rest of the molecule. The term "aryl" may
be used interchangeably with the term "aryl ring". Some non-limiting examples of aryl
rings include phenyl, naphthyl, and anthracene.
[0044] The term "heteroaryl" used alone or as part of a larger moiety as in "heteroaralkyl"
or "heteroarylalkoxy" refers to monocyclic, bicyclic, and tricyclic ring systems having
a total of five to fourteen ring members, wherein at least one ring in the system
is aromatic, at least one ring in the system contains one or more heteroatoms, wherein
each ring in the system contains 3 to 7 ring members and that has a single point of
attachment to the rest of the molecule. The term "heteroaryl" may be used interchangeably
with the term "heteroaryl ring" or the term "heteroaromatic".
[0045] Some non-limiting examples of suitable heteroaryl rings include the following monocycles:
2-furanyl, 3-furanyl, N-imidazolyl, 2-imidazolyl, 4-imidazolyl, 5-imidazolyl, 3-isoxazolyl,
4-isoxazolyl, 5-isoxazolyl, 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, N-pyrrolyl, 2-pyrrolyl,
3- pyrrolyl, 2-pyridyl, 3-pyridyl, 4-pyridyl, 2-pyrimidinyl, 4-pyrimidinyl, 5-pyrimidinyl,
pyridazinyl (e.g., 3-pyridazinyl), 2-thiazolyl, 4-thiazolyl, 5-thiazolyl, tetrazolyl
(
e.g., 5- tetrazolyl), triazolyl (
e.g., 2-triazolyl and 5-triazolyl), 2-thienyl, 3-thienyl, pyrazolyl (
e.g., 2-pyrezolyl), isothiazolyl, 1,2,3-oxadiazolyl, 1,2,5-oxadiazolyl,1,2,4-oxadiazolyl,
1,2,3-triazolyl, 1,2,3-thiadiazolyl, 1,3,4-thiadiazolyl, 1,2,5-thiadiazolyl, pyrazinyl,
1,3,5- triazinyl, and the following bicycles: benzimidazolyl, benzofuryl, benzothiophenyl,
indolyl (
e.g., 2-indolyl), purinyl, quinolinyl (
e.g., 2-quinolinyl, 3-quinolinyl, 4-quinolinyl), or isoquinolinyl (
e.g., 1-isoquinolinyl, 3-isoquinolinyl, or 4-isoquinolinyl).
[0046] The term "sulfonyl", whether used alone or linked to other terms such as alkylsulfonyl,
refers to respectively divalent radicals -SO
2-. The term "alkylsulfonyl", refers to a sulfonyl radical substituted with an alkyl
radical, forming a alkylsulfonyl (-SO
2CH
3).
[0047] The terms "sulfamyl", "aminosulfonyl" and "sulfonamidyl" refer to a sulfonyl radical
substituted with an amine radical, forming a sulfonamide (-SO
2NH
2).
[0048] The term "carboxy" or "carboxyl", whether used alone or with other terms, such as
"carboxyalkyl", refers to -CO
2H. The term "carbonyl", whether used alone or with other terms, such as "aminocarbonyl"
or "carbonyloxy", refers to -(C=O)-.
[0049] The term "aralkyl" refers to aryl-substituted alkyl radicals. Aralkyl radicals may
be "lower aralkyl" radicals having aryl radicals attached to alkyl radicals having
one to six carbon atoms, or aralkyl radicals may be "phenylalkylenyl" attached to
alkyl portions having one to three carbon atoms. Some non-limiting examples of such
radicals include benzyl, diphenylmethyl and phenylethyl. The aryl in said aralkyl
can be additionally substituted with halo, alkyl, alkoxy, haloalkyl and haloalkoxy.
[0050] The term "alkylthio" refers to radicals containing a linear or branched alkyl radical,
of one to ten carbon atoms, attached to a divalent sulfur atom. Alkylthio radicals
may be lower alkylthio radicals having one to three carbon atoms. Some non-limiting
examples of "alkylthio" include methylthio (CH
3S-).
[0051] The term "haloalkylthio" refers to radicals containing a haloalkyl radical, of one
to ten carbon atoms, attached to a divalent sulfur atom. Haloalkylthio radicals may
be lower haloalkylthio radicals having one to three carbon atoms. Some non-limiting
examples of "haloalkylthio" include trifluoromethylthio.
[0052] The term "alkylamino" refers to "N-alkylamino" and "N,N-dialkylamino" where amino
groups are independently substituted with one alkyl radical or with two alkyl radicals,
respectively. In other embidiments, alkylamino radicals are "lower alkylamino" radicals
having one or two alkyl radicals of one to six carbon atoms, attached to a nitrogen
atom. Alkylamino radicals may be lower alkylamino radicals having one to three carbon
atoms. Some non-limiting examples of suitable alkylamino radicals include mono or
dialkylamino such as N-methylamino, N-ethylamino, N,N-dimethylamino, N,N-diethylamino,
and the like.
[0053] The term "arylamino" refers to amino groups, which have been substituted with one
or two aryl radicals. Some non-limiting examples of arylamino include N-phenylamino.
The arylamino radicals may include substituted on the aryl ring portion of the radical.
[0054] The term "heteroarylamino" refers to amino groups, which have been substituted with
one or two heteroaryl radicals. Some non-limiting examples of heteroarylamino include
N-thienylamino. The "heteroarylamino" radicals may include substituted on the heteroaryl
ring portion of the radical.
[0055] The term "aminoalkyl" refers to linear or branched alkyl radicals having one to about
ten carbon atoms any one of which includes substituted with one or more amino radicals.
Aminoalkyl radicals may be "lower aminoalkyl" radicals having one to six carbon atoms
and one or more amino radicals. Some non-limiting examples of such radicals include
aminomethyl, aminoethyl, aminopropyl, aminobutyl or aminohexyl.
[0056] The term "alkylaminoalkyl" refers to alkyl radicals substituted with alkylamino radicals.
Alkylaminoalkyl radicals may be "lower alkylaminoalkyl" radicals having alkyl radicals
of one to six carbon atoms, or lower alkylaminoalkyl radicals having alkyl radicals
of one to three carbon atoms. Some non-limiting examples of suitable alkylaminoalkyl
radicals include mono or dialkyl substituted, such as N-methylaminomethyl, N,N-dimethyl-aminoethyl,
N,N-diethylaminomethyl, and the like.
[0057] The term "alkylaminoalkoxy" refers to alkoxy radicals substituted with alkylamino
radicals. Some non-limiting examples of suitable alkylaminoalkoxy radicals include
mono or dialkyl substituted, such as N-methylaminoethoxy, N,N-dimethylaminoethoxy,
N,N-diethylaminoethoxy, and the like.
[0058] The term "alkylaminoalkoxyalkoxy" refers to alkoxy radicals substituted with alkylaminoalkoxy
radicals. Some non-limiting examples of suitable alkylaminoalkoxyalkoxy radicals include
mono or dialkyl substituted, such as N-methylaminomethoxyethoxy, N-methylaminoethoxyethoxy,
N,N-dimethylaminoethoxyethoxy, N,N-diethylaminomethoxymethoxy, and the like.
[0059] The term "carboxyalkyl" refers to linear or branched alkyl radicals having one to
about ten carbon atoms any one of which maybe substituted with one or more carboxy
radicals. Some non-limiting examples of such radicals include carboxymethyl, carboxypropyl,
and the like.
[0060] The term "aryloxy" refers to optionally substituted aryl radicals, as defined above,
attached to an oxygen atom. Some non-limiting examples of such radicals include phenoxy.
[0061] The term "heteroaryloxy" refers to optionally substituted heteroaryl radicals, as
defined above, attached to an oxygen atom.
[0062] The term "heteroarylalkoxy" refers to oxy-containing heteroarylalkyl radicals attached
through an oxygen atom to other radicals.
[0063] The term "cycloalkylalkyl" refers to cycloalkyl-substituted alkyl radicals. Some
non-limiting examples of such radicals include cyclohexylmethyl. The cycloalkyl in
the radicals may be additionally substituted with halo, alkyl, alkoxy or hydroxy.
[0064] The terms "fused bicyclic", "fused cyclic", "fused bicyclyl" and "fused cyclyl" refer
to saturated bridged ring system, which refers to a bicyclic ring system that is not
aromatic. Such a system may contain isolated or conjugated unsaturation, but not aromatic
or heteroaromatic rings in its core structure (but may have aromatic substitution
thereon). Each cyclic ring in a fused bicyclyl can be either a carbocyclic or a heteroalicyclic.
Some non-limiting examples of fused bicyclic ring system include hexahydro-furo[3,2-b]furan,
2,3,3a,4,7,7a-hexahydro-1H-indene, 7-azebicyclo[2.2.1]heptene, and 1,2,3,4,4a,5,8,8a-octahydro-naphthalene.
[0065] The terms "spirocyclyl", "spirocyclic", "spiro bicyclyl" or "spiro bicyclic" refer
to a ring originating from a particular annular carbon of another ring. For example,
as depicted below, a saturated bridged ring system (ring B and B') is termed as "fused
bicyclic", whereas ring A and ring B share an atom between the two saturated ring
system, which terms as a "spirocyclyl" or "spiro bicyclyl". Each cyclic ring in a
spirocyclyl can be either a carbocyclic or a heteroalicyclic.

[0066] As described herein, a bond drawn from a substituent to the center of one ring within
a ring system (as shown below) represents substitution of the substituent at any substitutable
position on the rings to which it is attached. For example, Figure a represents possible
substitution in any of the positions on the B ring shown in Figure b.

[0067] As described herein, a dot line drawn together with a bond within a ring system (as
shown in Figure c) represents either a double bond or a single bond. For example,
structure in Figure c represents any structures selected from Figure d.

[0068] Unless otherwise stated, structures depicted herein are also meant to include all
isomeric (
e.g., enantiomeric, diastereomeric, and geometric (or conformational)) forms of the structure;
for example, the R and S configurations for each asymmetric center, (Z) and (E) double
bond isomers, and (Z) and (E) conformational isomers. Therefore, single stereochemical
isomers as well as enantiomeric, diastereomeric, or geometric (or conformational)
mixtures of the present compounds are within the scope disclosed herein.
[0069] The term "prodrug" as used herein, represents a compound that is transformed in vivo
into a compound of Formula (I). Such a transformation can be affected, for example,
by hydrolysis in blood or enzymatic transformation of the prodrug form to the parent
form in blood or tissue. Prodrugs of the compounds disclosed herein may be, for example,
esters. Esters that may be utilized as prodrugs are phenyl esters, aliphatic (C
1-C
24) esters, acyloxymethyl esters, carbonates, carbamates, and amino acid esters. For
example, a compound disclosed herein that contains an OH group may be acylated at
this position in its prodrug form. Other prodrug forms include phosphates, such as,
for example those phosphates resulting from the phosphonation of an OH group on the
parent compound. A thorough discussion of prodrugs is provided in
T. Higuchi and V. Stella, Pro-drugs as Novel Delivery Systems, Vol. 14 of the A.C.S.
Symposium Series, Edward B. Roche, ed., Bioreversible Carriers in Drug Design, American
Pharmaceutical Association and Pergamon Press, 1987,
J. Rautio et al, Prodrugs: Design and Clinical Applications, Nature Review Drug Discovery,
2008, 7, 255-270, and
S. J. Hecker et al, Prodrugs of Phosphates and Phosphonates, Journal of Medicinal
Chemistry, 2008, 51, 2328-2345.
[0070] A "metabolite" is a product produced through metabolism in the body of a specified
compound or salt thereof. Metabolites of a compound may be identified using routine
techniques known in the art and their activities determined using tests such as those
described herein. Such products may result for example from the oxidation, reduction,
hydrolysis, amidation, deamidation, esterification, deesterification, enzymatic cleavage,
and the like, of the administered compound.
[0071] Stereochemical definitions and conventions used herein generally follow
S. P. Parker, Ed., McGraw-Hill Dictionary of Chemical Terms (1984) McGraw-Hill Book
Company, New York; and
Eliel, E. and Wilen, S., "Stereochemistry of Organic Compounds", John Wiley & Sons,
Inc., New York, 1994. The compounds disclosed herein may contain asymmetric or chiral centers, and therefore
exist in different stereoisomeric forms. Many organic compounds exist in optically
active forms,
i.e., they have the ability to rotate the plane of plane-polarized light. In describing
an optically active compound, the prefixes
D and
L, or
R and
S, are used to denote the absolute configuration of the molecule about its chiral center(s).
The prefixes
d and
l or (+) and (-) are employed to designate the sign of rotation of plane-polarized
light by the compound, with (-) or
l meaning that the compound is levorotatory. A compound prefixed with (+) or
d is dextrorotatory. For a given chemical structure, these stereoisomers are identical
except that they are mirror images of one another. A specific stereoisomer may also
be referred to as an enantiomer, and a mixture of such isomers is often called an
enantiomeric mixture. A 50:50 mixture of enantiomers is referred to as a racemic mixture
or a racemate, which may occur where there has been no stereoselection or stereospecificity
in a chemical reaction or process. The terms "racemic mixture" and "racemate" refer
to an equimolar mixture of two enantiomeric species, devoid of optical activity.
[0072] The term "tautomer" or "tautomeric form" refers to structural isomers of different
energies which are interconvertible via a low energy barrier. Some non-limiting examples
of proton tautomers (also known as prototropic tautomers) include interconversions
via migration of a proton, such as keto-enol and imine-enamine isomerizations. Valence
tautomers include interconversions by reorganization of some of the bonding electrons.
[0073] A "pharmaceutically acceptable salt" as used herein, refers to organic or inorganic
salts of a compound disclosed herein. Pharmaceutically acceptable salts are well known
in the art. For example,
S. M. Berge et al., describe pharmaceutically acceptable salts in detail in J. Pharmaceutical
Sciences, 66: 1-19,1977. Examples of pharmaceutically acceptable, nontoxic acid addition salts include, but
are not limited to, salts of an amino group formed with inorganic acids such as hydrochloric
acid, hydrobromic acid, phosphoric acid, sulfuric acid and perchloric acid or with
organic acids such as acetic acid, oxalic acid, maleic acid, tartaric acid, citric
acid, succinic acid or malonic acid or by using other methods used in the art such
as ion exchange. Other pharmaceutically acceptable salts include adipate, alginate,
ascorbate, aspartate, benzenesulfonate, benzoate, bisulfate, borate, butyrate, camphorate,
camphorsulfonate, cyclopentanepropionate, digluconate, dodecylsulfate, ethanesulfonate,
formate, fumarate, glucoheptonate, glycerophosphate, gluconate, hemisulfate, heptanoate,
hexanoate, hydroiodide, 2-hydroxy-ethanesulfonate, lactobionate, lactate, laurate,
lauryl sulfate, malate, methanesulfonate, 2-naphthalenesulfonate, nicotinate, nitrate,
oleate, palmitate, pamoate, pectinate, persulfate, 3-phenylpropionate, phosphate,
picrate, pivalate, propionate, stearate, thiocyanate, p-toluenesulfonate, undecanoate,
valerate salts, and the like. Salts derived from appropriate bases include alkali
metal, alkaline earth metal, ammonium and N
+(C
1-4 alkyl)
4 salts. Also disclosed is the quatemization of any basic nitrogen-containing groups
of the compounds disclosed herein. Water or oil- soluble or dispersable products may
be obtained by such quatemization. Representative alkali or alkaline earth metal salts
include sodium, lithium, potassium, calcium, magnesium, and the like. Further pharmaceutically
acceptable salts include, when appropriate, nontoxic ammonium, quaternary ammonium,
and amine cations formed using counterions such as halide, hydroxide, carboxylate,
sulfate, phosphate, nitrate, C
1-8 sulfonate or aryl sulfonate.
[0074] A "solvate" refers to an association or complex of one or more solvent molecules
and a compound disclosed herein. Examples of solvents that form solvates include,
but are not limited to, water, isopropanol, ethanol, methanol, DMSO, ethyl acetate,
acetic acid, and ethanolamine. The term "hydrate" refers to the complex where the
solvent molecule is water.
[0075] The term "protecting group" or "Pg" refers to a substituent that is commonly employed
to block or protect a particular functionality while reacting other functional groups
on the compound. For example, an "amino-protecting group" is a substituent attached
to an amino group that blocks or protects the amino functionality in the compound.
Some non-limiting examples of suitable amino-protecting groups include acetyl, trifluomacetyl,
t-butoxycarbonyl (Boc), benzyloxycarbonyl (Cbz) and 9-fluorenylmethylenoxycarbonyl
(Fmoc). Similarly, a "hydroxy-protecting group" refers to a substituent of a hydroxy
group that blocks or protects the hydroxy functionality. Some non-limiting examples
of suitable hydroxy-protecting groups include acetyl and silyl. A "carboxy-protecting
group" refers to a substituent of the carboxy group that blocks or protects the carboxy
functionality. Some non-limiting examples of common carboxy-protecting groups include
-CH
2CH
2SO
2Ph, cyanoethyl, 2-(trimethylsilyl)ethyl, 2-(trimethylsilyl) ethoxy methyl, 2-(p-toluenesulfonyl)ethyl,
2-(p-nitrophenylsulfonyl)ethyl, 2-(diphenyl phosphino)-ethyl, nitroethyl, and the
like. For a general description of protecting groups and their use, see
T. W. Greene, Protective Groups in Organic Synthesis, John Wiley & Sons, New York,
1991; and
P. J. Kocienski, Protecting Groups, Thieme, Stuttgart, 2005.
DESCRIPTION OF COMPOUNDS OF THE INVENTION
[0076] Disclosed herein are heterocyclic compounds, and pharmaceutical formulations thereof,
that are potentially useful in the treatment of diseases, conditions and/or disorders
modulated by protein kinases, especially KDR, c-Met receptor and/or IGF receptor.
More specifically, provided herein are compounds of Formula (I):

or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate,
or a pharmaceutically acceptable salt thereof, wherein
Q1 is formula (IIa) or (IIb):

Q2 is formula (III):

R1 is selected from








wherein each of X4 and X4' is independently (CR4R4a)m, NR5, O, S, S=O or SO2 ; each of m and n is independently 0, 1 or 2; and t is 1,2 or 3;
R2 is H, halo, cyano(CN), R5aR5N-C1-6 alkoxy, optionally substituted C1-6 alkoxy, C1-6 hydroxyalkoxy, C1-6 aminoalkoxy, C1-6 hydroxy-substituted aminoalkoxy, C1-6 haloalkoxy, C1-6 alkylamino C1-6 alkoxy, C1-6 alkoxy C1-6 alcoxy, C4-10 heterocyclyloxy C1-6 alkoxy, C5-12 fused bicyclyl, C5-12 fused bicyclyl C1-6 aliphatic, C5-12 fused heterobicyclyl C1-6 aliphatic, C5-12 fused bicycloxy, C5-12 fused bicyclylamino, C5-12 fused bicycloxo C1-6 alkoxy, C5-12 fused bicyclylamino C1-6 alkoxy, C5-12 fused bicyclyl-C(=O)-, C5-12 fused bicyclyl-C(=O)O-, C5-12 fused heterobicyclyl-C(=O)-, C5-12 fused heterobicyclyl-C(=O)O-, C5-12 fused bicyclylamino-C(=O)-, C5-12 fused heterobicyclylamino-C(=O)-, C5-12 fused bicyclyl-C(=O)NR5-, C5-12 fused heterobicyclyl-C(=O)NR5-, C5-12 spiro bicyclyl, C5-12 spiro bicycloxy, C5-12 spiro bicyclylamino, C5-12 spiro bicycloxo C1-6 alkoxy, C5-12 spiro bicyclylamino C1-6 alcoxy, C5-12 fused heterobicyclyl, C5-12 fused heterobicycloxy, C5-12 fused heterobicyclylamino, C5-12 fused heterobicycloxo C1-6 alkoxy, C5-12 fused heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl, C5-12 spiro heterobicyclyl-, C5-12 spiro bicyclyl C1-6 aliphatic, C5-12 spiro hetembicyclyl C1-6 aliphatic, C5-12 spiro heterobicycloxo C1-6 alkoxy, C5-12 spiro heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl -C(=O)-, C5-12 spiro bicyclyl-C(=O)O-, C5-12 spiro heterobicyclyl-C(=O)-, C5-12 spiro heterobicyclyl-C(=O)O-, C5-12 spiro bicyclylamino-C(=O)-, C5-12 spiro hetembicyclylamino-C(=O)-, C5-12 spiro bicyclyl-C(=O)NR5-, or C5-12 spiro heterobicyclyl-C(=O)NR5-, C6-10 aryl, C1-10 heteroaryl, C6-10 aryl C1-6 aliphatic or C1-10 heteroaryl C1-6aliphatic;
wherein R3 is independently H, F, Cl, Br, -CN, C1-3 aliphatic, C1-3 alkoxy, or C1-3 haloalkyl;
each of U1 and U2 is independently CR4 or N;
V is NR5R5a, OR5;
V1 is O orNR5;
each of V2, V3 and V4 is independently CR4R4a, NR5, CR4 or N, with the proviso that only one of V2, V3, and V4 is NR5 or N, or V2 and V3 or V3 and V4 combine to become CR4R4a, NR5, O, CR4 or N, with the proviso that the resulted structure is stable;
each of W1, W2, W3 and W4 is independently CR4R4a, NR5, CR4 or N, or W1 and W2 or W3 and W4 combine to become CR4R4a, NR5, O or S;
X1 is (CR4R4a)m, NR5, O, S, S=O or SO2, where m is 0, 1 or 2;
each of X2 and X3 is independently O, S or NR5;
Z is -NR5C(=O)-(CR4R4a)p-, -NR5C(=S)-(CR4R4a)p-, -NR5a-(CR4R4a)p-, -NR5-(CR4R4a)pC(=O)-, -NR5-(CR4R4a)pC(=S)-, -NR5S(=O)r-, -NR5S(=O)r(CR4R4a)p-, - C(=O)NR5(CR4R4a)p- or NR5-(CR4R4a)pS(=O)r-, where p is 0,1,2 or 3 and r is 1 or 2;
each of Z1 and Z2 is independently NR5 or CR4R4a;
each of R4 and R4a is independently H, F, Cl, Br, I, -CN, hydroxyl, -NR5aR5, with the proviso that where R4 and R4a are bonded to the same carbon atom, R4 and R4a, together with the carbon atom they are attached to, optionally form a 3-8 membered
carbocyclic or heterocyclic ring;
each of R5 and R5a is independently H, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aNS(=O)-, R6OS(=O)-, R6S(=O)-, R6R6aNSO2-, R6OS2-, R6SO2-, with the proviso that where R5 and R5a are bonded to the same nitrogen atom, R5 and R5a, together with the nitrogen atom they are attached to, optionally form a 3-8 membered
ring, including spiro and fused bicyclic rings;
each of R6 and R6a is H.
[0077] In certain embodiments, Z of Formula (IIa) is -NHC(=O)-, Z
1 of formula (IIb) is NH; and the substructure defined by X
1, U
1 and R
3 of Formula I is:

[0078] In some embodiments, the compounds have Formula (IV):

or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate,
or a pharmaceutically acceptable salt thereof, wherein:
Q2 has formula (III):

R1 is selected from








wherein each of X4 and X4' is independently (CR4R4a)m, NR5, O, S, S=O or SO2; each of m and n is independently 0, 1 or 2; and t is 1, 2 or 3;
R2 is H, halo, cyano(CN), R5aR5N-C1-6 alkoxy, C1-6 alkoxy, C1-6 hydroxyalkoxy, C1-6 aminoalkoxy, C1-6 hydroxy-substituted aminoalkoxy, C1-6 haloalkoxy, C1-6 alkylamino C1-6 alkoxy, C1-6 alkoxy C1-6 alkoxy, C4-10 heterocyclyloxy C1-6 alkoxy, C5-12 fused bicyclyl, C5-12 fused bicyclyl C1-6 aliphatic, C5-12 fused heterobicyclyl C1-6 aliphatic, C5-12 fused bicycloxy, C5-12 fused bicyclylamino, C5-12 fused bicycloxo C1-6 alkoxy, C5-12 fused bicyclylamino C1-6 alkoxy, C5-12 fused bicyclyl-C(=O)-, C5-12 fused bicyclyl-C(=O)O-, C5-12 fused heterobicyclyl-C(=O)-, C5-12 fused heterobicyclyl-C(=O)O-, C5-12 fused bicyclylamino-C(=O)-, C5-12 fused heterobicyclylamino-C(=O)-, C5-12 fused bicyclyl-C(=O)NR5-, C5-12 fused heterobicyclyl-C(=O)NR5-, C5-12 spiro bicyclyl, C5-12 spiro bicycloxy, C5-12 spiro bicyclylamino, C5-12 spiro bicycloxo C1-6 alkoxy, C5-12 spiro bicyclylamino C1-6 alkoxy, C5-12 fused heterobicyclyl, C5-12 fused heterobicycloxy, C5-12 fused heterobicyclylamino, C5-12 fused heterobicycloxo C1-6 alkoxy, C5-12 fused heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl, C5-12 spiro heterobicyclyl, C5-12 spiro bicyclyl C1-6 aliphatic, C5-12 spiro heterobicyclyl C1-6 aliphatic, C5-12 spiro heterobicycloxo C1-6 alkoxy, C5-12 spiro heterobicyclylamino C1-6- alkoxy, C5-12 spiro bicyclyl -C(=O)-, C5-12 spiro bicyclyl-C(=O)O-, C5-12 spiro heterobicyclyl-C(=O)-, C5-12 spiro heterobicyclyl-C(=O)O-, C5-12 spiro bicyclylamino-C(=O)-, C5-12 spiro heterobicyclylamino-C(=O)-, C5-12 spiro bicyclyl-C(=O)NR5-, or C5-12 spiro heterobicyclyl-C(=O)NR5-, C6-10 aryl, C1-10 heteroaryl, C6-10 aryl C1-6aliphatic or C1-10 heteroaryl C1-6 aliphatic;
wherein R3 is independently H, F, Cl, Br, -CN, C1-3 aliphatic, C1-3 alkoxy, or C1-3 haloalkyl;
each of U1 and U2 is independently CR4 or N;
V is NR5R5a, OR5;
V1 is O or NR5;
each of V2, V3 and V4 is independently CR4R4a, NR5, CR4 or N, with the proviso that only one of V2, V3, and V4 is NR5 or N, or V2 and V3 or V3 and V4 combine to become CR4R4a, NR5, O, CR4 or N, with the proviso that the resulted structure is stable;
each of W1, W2, W3 and W4 is independently CR4R4a, NR5, CR4 or N, or W1 and W2 or W3 and W4 combine to become CR4R4a, NR5, O or S;
X1 is (CR4R4a)m, NR5, O, S, S=O or SO2, where m is 0, 1 or 2;
X2 is independently O, S or NR5;
Z is -NR5C(=O)-(CR4R4a)p-, -NR5C(=S)-(CR4R4a)p-, -NR5a-(CR4R4a)p-, -NR5-(CR4R4b)pC(=O)-, -NR5-(CR4R4a)pC(=S)-, -NR5S(=O)r-, -NR5S(=O)r(CR4R4a)p-, - C(=O)NR5(CR4R4a)p- or -NR5(CR4R4a)pS(=O)r-, where p is 0, 1, 2 or 3 and r is 1 or 2;
each of R4 and R4a is independently H, F, Cl, Br, I, -CN, hydroxyl, -NR5aR5, with the proviso that where R4 and R4a are bonded to the same carbon atom, R4 and R4a, together with the carbon atom they are attached to, optionally form a substituted
or unsubstituted 3-8 membered carbocyclic or heterocyclic ring;
each of R5 and R5a is independently H, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aNS(=O)-, R6OS(=O)-, R6S(=O)-, R6R6aNSO2-, R6OSO2-, R6SO2-, with the proviso that where R5 and R5a are bonded to the same nitrogen atom, R5 and R5a, together with the nitrogen atom they are attached to, optionally form a 3-8 membered
ring, including spiro and fused bicyclic rings;
each of R6 and R6a is independently H;
wherein each of R5aR5N-, -C(=O)NR5R5a, -OC(=O)NR5R5a, -OC(=O)OR5, - NR5C(=O)NR5R5a, -NR5C(=O)OR5a, -NR5C(=O)-R5a, R5R5aN-O2S-, R5O2S-, R5O2SR5aN-, OR5, NR5, CR4R4a, CR4, (CR4R4a)m, -NR5C(O)-(CR4R4a)p-, NR5C(=S)-(CR4R4a)p-, -NR5a-(CR4R4a)p-, NR5-(CR4R4a)pC(=O)-, NR5-(CR4R4a)pC(=S)-, -NR5S(O)r-,-NR5S(=O)(CR4R4a)p-, -C(=O)NR5-(CR4R4a)p-, -NR5 -(CR4R4a)p-S(=O)r-, R5aR5N-alkyl, R5(S=O)-alkyl, R5R5aN-(C=O)-alkyl, R5aR5N-alkoxy, R5(S=O)-alkoxy, R5R5aN-(C=O)-alkoxy, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aNS(=O)-, R6OS(=O)-, R6S(=O)-, R6R6aNSO2-, R6OSO2-, R6SO2-, hydroxy-substituted cyclopropylalkoxy, R5S(=O)2O-substituted cyclopropylalkoxy.
[0079] Preferably, Z is -NHC(=O)-; or the substructure defined by X
1, Z, U
1 and R
3 is

[0080] In some embodiments, the compounds have Formula V:

or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate,
or a pharmaceutically acceptable salt thereof, wherein:
Q2 has Formula (III):

R1 is selected from








wherein each of X4 and X4' is independently (CR4R4a)m, NR5, O, S, S=O or SO2; each of m and n is independently 0, 1 or 2; and t is 1,2 or 3;
R2 is H, halo, cyano(CN), R5aR5N-C1-6, alkoxy, C1-6 alkoxy, C1-6 hydroxyalkoxy, C1-6 aminoalkoxy, C1-6 hydroxy-substituted aminoalkoxy, C1-6 haloalkoxy, C1-6 alkylamino C1-6 alkoxy, C1-6 alkoxy C1-6 alkoxy, C4-10 heterocyclyloxy C1-6 alkoxy, C5-12 fused bicyclyl, C5-12 fused bicyclyl C1-6 aliphatic, C5-12 fused heterobicyclyl C1-6 aliphatic, C5-12 fused bicycloxy, C5-12 fused bicyclylamino, C5-12 fused bicycloxo C1-6 alkoxy, C5-12 fused bicyclylamino C1-6 alkoxy, C5-12 fused bicyclyl-C(=O)-, C5-12 fused bicyclyl-C(-O)O-, C5-12 fused heterobicyclyl-C(=O)-, C5-12 fused heterobicyclyl-C(=O)O-, C5-12 fused bicyclylamino-C(=O)-, C5-12 fused heterobicyclylamino-C(=O)-, C5-12 fused bicyclyl-C(=O)NR5-, C5-12 fused heterobicyclyl-C(=O)NR5-, C5-12 spiro bicyclyl, C5-12 spiro bicycloxy, C5-12 spiro bicyclylamino, C5-12 spiro bicycloxo C1-6 alkoxy, C5-12 spiro bicyclylamino C1-6 alkoxy, C5-12 fused hetembicyclyl, C5-12 fused heterobicycloxy, C5-12 fused heterobicyclylamino, C5-12 fused heterobicycloxo C1-6 alkoxy, C5-12 fused heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl, C5-12 spiro heterobicyclyl, C5-12 spiro bicyclyl C1-6 aliphatic, C5-12 spiro heterobicyclyl C1-6 aliphatic, C5-12 spiro heterobicycloxo C1-6 alkoxy, C5-12 spiro heterobicyclylamino C1-6 alkoxy, C5-12 spiro bicyclyl -C(=O)-, C5-12 spiro bicyclyl-C(=O)O-, C5-12 spiro heterobicyclyl-C(=O)-, C5-12 spiro heterobicyclyl,-C(=O)O-, C5-12 spiro bicyclylamino-C(=O)-, C5-12 spiro heterobicyclylamino-C(=O)-, C5-12 spiro bicyclyl-C(=O)NR5-, or C5-12 spiro beterobicyclyl-C(=O)NR5-, C6-10 aryl, C1-10 heteroaryl, C6-10 aryl C1-6 aliphatic or C1-10 heteroaryl C1-6 aliphatic;
wherein R3 is independently H, F, CI, Br, -CN, C1-3 aliphatic, C1-3 alkoxy, or C1-3 haloalkyl;
each of U1 and U2 is independently CR4 or N;
V is NR5R5a, OR5;
each of W1, W2, W3 and W4 is independently CR4R4a, NR5, CR4 or N, or W1 and W2 or W3 and W4 combine to become CR4R4a, NR5, O or S;
X1 is (CR4R4a)m, NR5, O, S, S=O or SO2, where m is 0, 1 or 2;
each of X2 and X3 is independently O, S or NR5;
each of Z1 and Z2 is independently NR5 or CR4R4a;
each of R4 and R4a is independently H, F, Cl, Br, I, -CN, hydroxyl, -NR5aR5, with the proviso that where R4 and R4a are bonded to the same carbon atom, R4 and R4a, together with the carbon atom they are attached to, optionally form a substituted
or unsubstituted 3-8 membered carbocyclic or heterocyclic ring;
each of R5 and R5a is independently H, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aNS(=O)-, R6OS(=O)-, R6S(=O)-, R6R6aNSO2-, R6OSO2-, R6SO2-, with the proviso that where R5 and R5a are bonded to the same nitrogen atom, R5 and R5a, together with the nitrogen atom they are attached to, optionally form a substituted
or unsubstituted 3-8 membered ring, including spiro and fused bicyclic rings;
each of R6 and R6a is independently H;
wherein each of R5aR5N-, -C(=O)NR5R5a, -OC(=O)NR5R5a, -OC(=O)OR5, - NR5C(=O)NR5R5a, -NR5C(=O)OR5a, NR5C(=O)-R5a, R5R5aN-O2S-, R5O2S-, R5O2SR5aN-, OR5, NR5, CR4R4a, CR4, (CR4R4a)m, -NR5C(O)-(CR4R4a)p-, -NR5C(=S)-(CR4R4a)p-, -NR5a-(CR4R4a)p-, -NR5-(CR4R4a)pC(=O)-, -NR5-(CR4R4a)pC(=S)-, -NR5S(O)r-,-NR5S(=O)(CR4R4a)p-, -C(=O)NR5-(CR4R4a)p-, NR5-(CR4R4a)p-S(=O)r-, R5aR5N-alkyl, R5(S=O)-alkyl, R5R5aN-(C=O)-alkyl, R5aR5N-alkoxy, R5(S=O)-alkoxy, R5R5aN-(C=O)-alkoxy, R6R6aNC(=O)-, R6OC(=O)-, R6C(=O)-, R6R6aNS(=O)-, R6OS(=O)-, R6S(=O)-, R6R6aNSO2-, R6OSO2-, R6SO2-, hydroxy-substituted cyclopropylalkoxy, R5S(=O)2O-substituted cyclopropylalkoxy. Preferably, according to some embodiments, the substructure
defined by X1, U1 and R3 is

and/or
wherein R1 is one of the following structures:



wherein each of X4 and X4' is independently (CR4R4a)m, NR5, O, S, S=O or SO2; each of m and n is independently 0,1 or 2; and t is 1,2 or 3
[0081] In another embodiment, Q
1 in Formula 1 or the substructure defined by X
2, V
1, V
2, V
3, V
4 and Z of Formula (IV) is

wherein R
3a is H, F, Cl, Br, I, -CN, hydroxyl, R
5aR
5N-, R
5aR
5N-aliphatic.
[0082] In another embodiment, R
1 is one of the following structures:

and

wherein each of X
4 and X
4' is independently (CR
4R
4a)
m, NR
3, O, S, S=O or SO
2; each of m and n is independently 0,1 or 2; and t is 1,2 or 3.
[0083] In another embodiment, Q
1 in Formula (I) or the substructure defined by Z
1, Z
2, X
2, X
3 and V of Formula (V) is

wherein Ar is substituted or unsubstituted aryl or heteroaryl; and s is 0 or 1.
[0085] Provided herein is also a pharmaceutical composition comprising a compound disclosed
herein above and a pharmaceutically acceptable carrier, excipient, diluent, adjuvant,
vehicle or a combination thereof, and optionally a therapeutic agent selected from
a chemotherapeutic agent, an anti-proliferative agent, an agent for treating atherosclerosis,
an agent for treating lung fibrosis, and combinations thereof, wherein the additional
therapeutic agent is optionally adriamycin, rapamycin, temsirolimus, everolimus, ixabepilone,
gemcitabin, cyclophosphamide, dexamethasone, etoposide, fluorouracil, imatinib mesylate,
dasatinib, nilotinib, erlotinib, lapatinib, iressa, sorafenib, sunitinib, an interferon,
carboplatin, topotecan, taxol, vinblastine, vincristine, temozolomide, tositumomab,
trabectedin, bevacizumab, trastuzumab, cetuximab, panitumumab or a combination thereof.
[0086] Also provided herein is the compound disclosed herein above or the pharmaceutical
composition disclosed herein for use in preventing, managing, treating or lessening
the severity of a proliferative disorder.
[0087] According to some embodiments, the proliferative disorder is metastatic cancer, colon
cancer, gastric adenocarcinoma, bladder cancer, breast cancer, kidney cancer, liver
cancer, lung cancer, thyroid cancer, cancer of the head and neck, prostate cancer,
pancreatic cancer, cancer of the CNS, glioblastoma, or a myeloproliferative disorder,
atherosclerosis or lung fibrosis.
[0088] The present invention also provides a method of inhibiting or modulating protein
kinase activity in a biological sample comprising contacting a biological sample with
the compound disclosed herein above or the pharmaceutical composition disclosed herein.
Preferably, according to one embodiment, the protein kinases are receptor tyrosine
kinases, and wherein the receptor tyrosine kinases are KDR, c-Met or IGF1R.
The present invention also provides a compound having one of the following structures:

and

or a stereoisomer, a geometric isomer, a tautomer, an N-oxide, a hydrate, a solvate,
or a pharmaceutically acceptable salt thereof
[0089] The compounds disclosed herein also include salts of such compounds which are not
necessarily pharmaceutically acceptable salts, and which may be useful as intermediates
for preparing and/or purifying compounds of Formula (I), (IV) or (V) and/or for separating
enantiomers of compounds of Formula (I), (IV) or (V).
[0090] If the compound disclosed herein is a base, the desired salt may be prepared by any
suitable method available in the art, for example, treatment of the free base with
an inorganic acid, such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric
acid, phosphoric acid, and the like, or with an organic acid, such as acetic acid,
maleic acid, succinic acid, mandelic acid, fumaric acid, malonic acid, pyruvic acid,
oxalic acid, glycolic acid, salicylic acid, a pyranosidyl acid, such as glucuronic
acid or galacturonic acid, an alpha hydroxy acid, such as citric acid or tartaric
acid, an amino acid, such as aspartic acid or glutamic acid, an aromatic acid, such
as benzoic acid or cinnamic acid, a sulfonic acid, such as p-toluenesulfonic acid
or ethanesulfonic acid, and the like.
[0091] If the compound disclosed herein is an acid, the desired salt may be prepared by
any suitable method, for example, treatment of the free acid with an inorganic or
organic base, such as an amine (primary, secondary or tertiary), an alkali metal hydroxide
or alkaline earth metal hydroxide, and the like. Illustrative examples of suitable
salts include, but are not limited to, organic salts derived from amino acids, such
as glycine and arginine, ammonia, primary, secondary, and tertiary amines, and cyclic
amines, such as piperidine, morpholine and piperazine, and inorganic salts derived
from sodium, calcium, potassium, magnesium, manganese, iron, copper, zinc, aluminum,
lithium, and the like.
COMPOSITION, FORMULATIONS AND ADMINSTRATION OF COMPOUNDS OF THE INVENTION
[0092] The amount of the compound in the compositions disclosed herein is such that is effective
to detectably inhibit a protein kinase in a biological sample or in a patient.
[0093] It will also be appreciated that certain of the compounds disclosed herein can exist
in free form for treatment, or where appropriate, as a pharmaceutically acceptable
derivative thereof. Some non-limiting examples of the pharmaceutically acceptable
derivative include pharmaceutically acceptable prodrugs, salts, esters, salts of such
esters, or any other adduct or derivative which upon administration to a patient in
need is capable of providing, directly or indirectly, a compound as otherwise described
herein, or a metabolite or residue thereof.
[0094] As described above, the pharmaceutically acceptable compositions disclosed herein
additionally comprise a pharmaceutically acceptable carrier, adjuvant, or vehicle,
which, as used herein, includes any and all solvents, diluents, or other liquid vehicle,
dispersion or suspension aids, surface active agents, isotonic agents, thickening
or emulsifying agents, preservatives, solid binders, lubricants and the like, as suited
to the particular dosage form desired. In
Remington: The Science and Practice of Pharmacy, 21st edition, 2005, ed. D.B. Troy,
Lippincott Williams & Wilkins, Philadelphia, and
Encyclopedia of Pharmaceutical Technology, eds. J. Swarbrick and J. C. Boylan,1988-1999,
Marcel Dekker, New York, are disclosed various carriers used in formulating pharmaceutically acceptable compositions
and known techniques for the preparation thereof.
[0095] Some examples of materials which can serve as pharmaceutically acceptable carriers
include, but are not limited to, ion exchangers, alumina, aluminum stearate, lecithin,
serum proteins, such as human serum albumin, buffer substances such as phosphates,
glycine, sorbic acid, or potassium sorbate, partial glyceride mixtures of saturated
vegetable fatty acids, water, salts or electrolytes, such as protamine sulfate, disodium
hydrogen phosphate, potassium hydrogen phosphate, sodium chloride, zinc salts, colloidal
silica, magnesium trisilicate, polyvinyl pyrrolidone, polyacrylates, waxes, polyethylene-polyoxypropylene-block
polymers, wool fat, sugars such as lactose, glucose and sucrose; starches such as
corn starch and potato starch; cellulose and its derivatives such as sodium carboxymethyl
cellulose, ethyl cellulose and cellulose acetate; powdered tragacanth; malt; gelatin;
talc; excipients such as cocoa butter and suppository waxes; oils such as peanut oil,
cottonseed oil, safflower oil, sesame oil, olive oil, corn oil and soybean oil; glycols
such as propylene glycol or polyethylene glycol; esters such as ethyl oleate and ethyl
laurate; agar; buffering agents such as magnesium hydroxide and aluminum hydroxide;
alginic acid; pyrogen-free water; isotonic saline; Ringer's solution; ethyl alcohol,
and phosphate buffer solutions, as well as other non-toxic compatible lubricants such
as sodium lauryl sulfate and magnesium stearate, as well as coloring agents, releasing
agents, coating agents, sweetening, flavoring and perfuming agents, preservatives
and antioxidants.
[0096] The compositions disclosed herein may be administered orally, parenterally, by inhalation
spray, topically, rectally, nasally, buccally, vaginally or via an implanted reservoir.
The term "parenteral" as used herein includes subcutaneous, intravenous, intramuscular,
intra-articular, intra-synovial, intrastemal, intrathecal, intraocular, intrahepatic,
intralesional and intracranial injection or infusion techniques. The compositions
may be administered orally, intraperitoneally or intravenously. Sterile injectable
forms of the compositions disclosed herein include aqueous or oleaginous suspension.
These suspensions may be formulated according to techniques known in the art using
suitable dispersing or wetting agents and suspending agents. The sterile injectable
preparation may also be a sterile injectable solution or suspension in a non-toxic
parenterally acceptable diluent or solvent, for example as a solution in 1,3- butanediol.
Among the acceptable vehicles and solvents that include water, Ringer's solution and
isotonic sodium chloride solution. In addition, sterile, fixed oils are conventionally
employed as a solvent or suspending medium.
[0097] For this purpose, any bland fixed oil includes synthetic mono- or diglycerides. Fatty
acids, such as oleic acid and its glyceride derivatives are useful in the preparation
of injectables, as are natural pharmaceutically-acceptable oils, such as olive oil
or castor oil, especially in their polyoxyethylated versions. These oil solutions
or suspensions may also contain a long-chain alcohol diluent or dispersant, such as
carboxymethyl cellulose or similar dispersing agents that are commonly used in the
formulation of pharmaceutically acceptable dosage forms including emulsions and suspensions.
Other commonly used surfactants, such as
Tweens, Spans and other emulsifying agents or bioavailability enhancers which are commonly used
in the manufacture of pharmaceutically acceptable solid, liquid, or other dosage forms
may also be used for the purposes of formulation.
[0098] The pharmaceutically acceptable compositions disclosed herein include orally administered
in any orally acceptable dosage form including, but not limited to, capsules, tablets,
aqueous suspensions or solutions. In the case of tablets for oral use, carriers commonly
used include lactose and corn starch. Lubricating agents, such as magnesium stearate,
are also typically added. For oral administration in a capsule form, useful diluents
include lactose and dried cornstarch. When aqueous suspensions are required for oral
use, the active ingredient is combined with emulsifying and suspending agents. If
desired, certain sweetening, flavoring or coloring agents may also be added.
[0099] Alternatively, the pharmaceutically acceptable compositions disclosed herein include
administered in the form of suppositories for rectal administration. These can be
prepared by mixing the agent with a suitable non-irritating excipient that is solid
at room temperature but liquid at rectal temperature and therefore will melt in the
rectum to release the drug. Such materials include cocoa butter, beeswax and polyethylene
glycols. The pharmaceutically acceptable compositions disclosed herein also include
administered topically, especially when the target of treatment includes areas or
organs readily accessible by topical application, including diseases of the eye, the
skin, or the lower intestinal tract. Suitable topical formulations are readily prepared
for each of these areas or organs.
[0100] Topical application for the lower intestinal tract can be effected in a rectal suppository
formulation (see above) or in a suitable enema formulation. Topically-transdermal
patches may also be used. For topical applications, the pharmaceutically acceptable
compositions may be formulated in a suitable ointment containing the active component
suspended or dissolved in one or more carriers. Carriers for topical administration
of the compounds disclosed herein include, but are not limited to, mineral oil, liquid
petrolatum, white petrolatum, propylene glycol, polyoxyethylene, polyoxypropylene
compound, emulsifying wax and water. Alternatively, the pharmaceutically acceptable
compositions can be formulated in a suitable lotion or cream containing the active
components suspended or dissolved in one or more pharmaceutically acceptable carriers.
Suitable carriers include, but are not limited to, mineral oil, sorbitan monostearate,
polysorbate 60, cetyl esters wax, cetearyl alcohol, 2-octyldodecanol, benzyl alcohol
and water.
[0101] For ophthalmic use, the pharmaceutically acceptable compositions may be formulated,
e.
g., as micronized suspensions in isotonic, pH adjusted sterile saline or other aqueous
solution, or, as solutions in isotonic, pH adjusted sterile saline or other aqueous
solution, either with or without a preservative such as benzylalkonium chloride. Alternatively,
for ophthalmic uses, the pharmaceutically acceptable compositions may be formulated
in an ointment such as petrolatum. The pharmaceutically acceptable compositions disclosed
herein may also be administered by nasal aerosol or inhalation. Such compositions
are prepared according to techniques well-known in the art of pharmaceutical formulation
and may be prepared as solutions in saline, employing benzyl alcohol or other suitable
preservatives, absorption promoters to enhance bioavailability, fluorocarbons, and/or
other conventional solubilizing or dispersing agents.
[0102] Liquid dosage forms for oral administration include, but are not limited to, pharmaceutically
acceptable emulsions, microemulsions, solutions, suspensions, syrups and elixirs.
In addition to the active compounds, the liquid dosage forms may contain inert diluents
commonly used in the art such as, for example, water or other solvents, solubilizing
agents and emulsifiers such as ethyl alcohol, isopropyl alcohol, ethyl carbonate,
ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylene glycol,
dimethylformamide, oils (in particular, cottonseed, groundnut, corn, germ, olive,
castor, and sesame oils), glycerol, tetrahydrofurfuryl alcohol, polyethylene glycols
and fatty acid esters of sorbitan, and mixtures thereof. Besides inert diluents, the
oral compositions can also include adjuvants such as wetting agents, emulsifying and
suspending agents, sweetening, flavoring, and perfuming agents.
[0103] Injectable preparations, for example, sterile injectable aqueous or oleaginous suspensions
may be formulated according to the known art using suitable dispersing or wetting
agents and suspending agents. The sterile injectable preparation may also be a sterile
injectable solution, suspension or emulsion in a nontoxic parenterally acceptable
diluent or solvent, for example, as a solution in 1,3-butanediol. Among the acceptable
vehicles and solvents that may be employed are water, Ringer's solution, U.S.P. and
isotonic sodium chloride solution. In addition, sterile, fixed oils are conventionally
employed as a solvent or suspending medium. For this purpose any bland fixed oil can
be employed including synthetic mono- or diglycerides. In addition, fatty acids such
as oleic acid are used in the preparation of injectables.
[0104] The injectable formulations can be sterilized, for example, by filtration through
a bacterial-retaining filter, or by incorporating sterilizing agents in the form of
sterile solid compositions which can be dissolved or dispersed in sterile water or
other sterile injectable medium prior to use. In order to prolong the effect of a
compound disclosed herein, it is often desirable to slow the absorption of the compound
from subcutaneous or intramuscular injection. This may be accomplished by the use
of a liquid suspension of crystalline or amorphous material with poor water solubility.
The rate of absorption of the compound then depends upon its rate of dissolution that,
in turn, may depend upon crystal size and crystalline form. Alternatively, dissolving
or suspending the compound in an oil vehicle accomplishes delayed absorption of a
parenterally administered compound form.
[0105] Injectable depot forms are made by forming microencapsule matrices of the compound
in biodegradable polymers such as polylactide-polyglycolide. Depending upon the ratio
of compound to polymer and the nature of the particular polymer employed, the rate
of compound release can be controlled. Some non-limiting examples of other biodegradable
polymers include poly(orthoesters) and poly(anhydrides). Depot injectable formulations
are also prepared by entrapping the compound in liposomes or microemulsions that are
compatible with body tissues.
[0106] Compositions for rectal or vaginal administration are preferably suppositories which
can be prepared by mixing the compounds disclosed herein with suitable non-irritating
excipients or carriers such as cocoa butter, polyethylene glycol or a suppository
wax which are solid at ambient temperature but liquid at body temperature and therefore
melt in the rectum or vaginal cavity and release the active compound.
[0107] Solid dosage forms for oral administration include capsules, tablets, pills, powders,
and granules. In such solid dosage forms, the active compound is mixed with at least
one inert, pharmaceutically acceptable excipient or carrier such as sodium citrate
or dicalcium phosphate and/or a) fillers or extenders such as starches, lactose, sucrose,
glucose, mannitol, and silicic acid; b) binders such as, for example, carboxymethylcellulose,
alginates, gelatin, polyvinylpyrrolidinone, sucrose, and acacia; c) humectants such
as glycerol; d) disintegrating agents such as agar-agar, calcium carbonate, potato
or tapioca starch, alginic acid, certain silicates and sodium carbonate; e) solution
retarding agents such as paraffin; f) absorption accelerators such as quaternary ammonium
compounds; g) wetting agents such as, for example, cetyl alcohol and glycerol monostearate;
h) absorbents such as kaolin and bentonite clay; and i) lubricants such as talc, calcium
stearate, magnesium stearate, solid polyethylene glycols, sodium lauryl sulfate, and
mixtures thereof. In the case of capsules, tablets and pills, the dosage form may
also comprise buffering agents.
[0108] Solid compositions of a similar type may also be employed as fillers in soft and
hard-filled gelatin capsules using such excipients as lactose or milk sugar as well
as high molecular weight polyethylene glycols and the like. The solid dosage forms
of tablets, dragees, capsules, pills, and granules can be prepared with coatings and
shells such as enteric coatings and other coatings well known in the pharmaceutical
formulating art. They may optionally contain opacifying agents and can also be of
a composition that they release the active ingredient(s) only, or preferentially,
in a certain part of the intestinal tract, optionally, in a delayed manner. Examples
of embedding compositions that can be used include polymeric substances and waxes.
[0109] The active compounds can also be in micro-encapsulated form with one or more excipients
as noted above. The solid dosage forms of tablets, dragees, capsules, pills, and granules
can be prepared with coatings and shells such as enteric coatings, release controlling
coatings and other coatings well known in the pharmaceutical formulating art. In such
solid dosage forms, the active compound may be admixed with at least one inert diluent
such as sucrose, lactose or starch. Such dosage forms may also comprise, as is normal
practice, additional substances other than inert diluents,
e.
g., tableting lubricants and other tableting aids such a magnesium stearate and microcrystalline
cellulose. In the case of capsules, tablets and pills, the dosage forms may also comprise
buffering agents. They may optionally contain pacifying agents and can also be of
a composition that they release the active ingredient(s) only, or, in a certain part
of the intestinal tract, optionally, in a delayed manner. Some non-limiting examples
of embedding compositions that can be used include polymeric substances and waxes.
[0110] Dosage forms for topical or transdermal administration of a compound disclosed herein
include ointments, pastes, creams, lotions, gels, powders, solutions, sprays, inhalants
or patches. The active component is admixed under sterile conditions with a pharmaceutically
acceptable carrier and any needed preservatives or buffers as may be required. Ophthalmic
formulation, eardrops, and eye drops are also envisioned. Additionally, contemplated
herein is the use of transdermal patches, which have the added advantage of providing
controlled delivery of a compound to the body. Such dosage forms can be made by dissolving
or dispensing the compound in the proper medium. Absorption enhancers can also be
used to increase the flux of the compound across the skin. The rate can be controlled
by either providing a rate controlling membrane or by dispersing the compound in a
polymer matrix or gel.
[0111] The compounds disclosed herein are preferably formulated in dosage unit form for
ease of administration and uniformity of dosage. The expression "dosage unit form"
as used herein refers to a physically discrete unit of agent appropriate for the patient
to be treated. It will be understood, however, that the total daily usage of the compounds
and compositions disclosed herein will be decided by the attending physician within
the scope of sound medical judgment. The specific effective dose level for any particular
patient or organism will depend upon a variety of factors including the disorder being
treated and the severity of the disorder; the activity of the specific compound employed;
the specific composition employed; the age, body weight, general health, sex and diet
of the patient; the time of administration, route of administration, and rate of excretion
of the specific compound employed; the duration of the treatment; drugs used in combination
or coincidental with the specific compound employed, and like factors well known in
the medical arts.
[0112] The amount of the compounds disclosed herein that may be combined with the carrier
materials to produce a composition in a single dosage form will vary depending upon
the host treated, the particular mode of administration. The compositions should be
formulated so that a dosage of between 0.01- 300 mg/kg body weight/day of the inhibitor
can be administered to a patient receiving these compositions.
[0113] Compounds disclosed herein can be administered as the sole pharmaceutical agent or
in combination with one or more other additional therapeutic (pharmaceutical) agents
where the combination causes no unacceptable adverse effects. This may be of particular
relevance for the treatment of hyper-proliferative diseases such as cancer. In this
instance, the compound disclosed herein can be combined with known cytotoxic agents,
signal transduction inhibitors, or with other anti-cancer agents, as well as with
admixtures and combinations thereof. As used herein, additional therapeutic agents
that are normally administered to treat a particular disease, or condition, are known
as "appropriate for the disease, or condition, being treated". As used herein, "additional
therapeutic agents" refers to include chemotherapeutic agents and other anti-proliferative
agents.
[0114] For example, chemotherapeutic agents or other antiproliferative agents may be combined
with the compounds disclosed herein to treat proliferative disease or cancer. Examples
of chemotherapeutic agents or other antiproliferative agents include HDAC inhibitors
including, but are not limited to, SAHA, MS-275, MGO 103, and those described in
WO 2006/010264,
WO 03/024448,
WO 2004/069823,
US 2006/0058298,
US 2005/0288282,
WO 00/71703,
WO 01/38322,
WO 01/70675,
WO 03/006652,
WO 2004/035525,
WO 2005/030705,
WO 2005/092899, and demethylating agents including, but not limited to, 5-aza-dC, Vidaza and Decitabine
and those described in
US 6268137,
US 5578716,
US 5919772,
US 6054439,
US 6184211,
US 6020318,
US 6066625,
US 6506735,
US 6221849,
US 6953783,
US 11393380.
[0115] Also, chemotherapeutic agents or other anti-proliferative agents may be combined
with the compounds disclosed herein to treat proliferative diseases and cancer. Examples
of known chemotherapeutic agents include, but are not limited to, for example, other
therapies or anticancer agents that may be used in combination with the inventive
anticancer agents disclosed herein and include surgery, radiotherapy (in but a few
examples, gamma-radiation, neutron beam radiotherapy, electron beam radiotherapy,
proton therapy, brachytherapy, and systemic radioactive isotopes, to name a few),
endocrine therapy, taxanes (taxol, taxotere etc), platinum derivatives, biologic response
modifiers (interferons, interleukins, and tumor necrosis factor (TNF), TRAIL receptor
targeting, agents, to name a few), hyperthermia and cryotherapy, agents to attenuate
any adverse effects (
e.
g., antiemetics), and other approved chemotherapeutic drugs, including, but not limited
to, alkylating drugs (mechlorethamine, chlorambucil, Cyclophosphamide, Melphalan,
Ifosfamide), antimetabolites (Methotrexate, Pemetrexed etc), purine antagonists and
pyrimidine antagonists (6-Mercaptopurine, 5-Fluorouracil, Cytarabile, Gemcitabine),
spindle poisons (Vinblastine, Vincristine, Vinorelbine, Paclitaxel), podophyllotoxins
(Etoposide, Irinotecan, Topotecan), antibiotics (Doxorubicin, Bleomycin, Mitomycin),
nitrosoureas (Carmustine, Lomustine), inorganic ions (Cisplatin, Carboplatin), Cell
cycle inhibitors (KSP mitotic kinesin inhibitors, CENP-E and CDK inhibitors), enzymes
(Asparaginase), and hormones (Tamoxifen, Leuprolide, Flutamide, and Megestrol), Gleevec(TM),
adriamycin, dexamethasone, and cyclophosphamide. Antiangiogenic agents (Avastin and
others). Kinase inhibitors (Imatinib (Gleevec), Sutent, Nexavar, Erbitux, Herceptin,
Tarceva, Iressa and others). Agents inhibiting or activating cancer pathways such
as the mTOR, HIF (hypoxia induced factor) pathways and others. For a more comprehensive
discussion of updated cancer therapies see, http://www.nci.nih.gov/, a list of the
FDA approved oncology drugs at http://www.fda.gov/cder/cancer/druglist-rame.htm, and
The Merck Manual, Eighteenth Ed. 2006.
[0116] The compounds disclosed herein can be combined with cytotoxic anti-cancer agents.
Examples of such agents can be found in the
13th Edition of the Merck Index (2001). These agents include, by no way of limitation, asparaginase, bleomycin, carboplatin,
carmustine, chlorambucil, cisplatin, colaspase, cyclophosphamide, cytarabine, dacarbazine,
dactinomycin, daunorubicin, doxorubicin (adriamycine), epirubicin, etoposide, 5-fluorouracil,
hexamethylmelamine, hydroxyurea, ifosfamide, irinotecan, leucovorin, lomustine, mechlorethamine,
6-mercaptopurine, mesna, methotrexate, mitomycin C, mitoxantrone, prednisolone, prednisone,
procarbazine, raloxifen, streptozocin, tamoxifen, thioguanine, topotecan, vinblastine,
vincristine, or vindesine.
[0117] Other cytotoxic drugs suitable for use with the compounds disclosed herein include,
but are not limited to, those compounds acknowledged to be used in the treatment of
neoplastic diseases, such as those for example in
Goodman and Gilman's The Pharmacological Basis of Therapeutics (Ninth Edition, 1996,
McGraw-Hill). These agents include, by no way of limitation, aminoglutethimide, L-asparaginase,
azathioprine, 5-azacytidine cladribine, busulfan, diethylstilbestrol, 2', 2'-difluorodeoxycytidine,
docetaxel, erythrohydroxynonyladenine, ethinyl estradiol, 5-fluorodeoxyuridine, 5-fluorodeoxyuridine
monophosphate, fludarabine phosphate, fluoxymesterone, flutamide, hydroxyprogesterone
caproate, idarubicin, interferon, medroxyprogesterone acetate, megestrol acetate,
melphalan, mitotane, paclitaxel, pentostatin, N-phosphonoacetyI-L-aspartate (PALA),
plicamycin, semustine, teniposide, testosterone propionate, thiotepa, trimethylmelamine,
uridine, or vinorelbine.
[0118] Other cytotoxic anti-cancer agents suitable for use in combination with the compounds
disclosed herein also include newly discovered cytotoxic principles, some examples
of cytotoxic principles include, but are not limited to, oxaliplatin, gemcitabine,
capecitabine, epothilone and its natural or synthetic derivatives, temozolomide (
Quinn et al., J. Clin. Oncology, 2003, 21(4), 646-651), tositumomab (Bexxar), trabedectin (
Vidal et al., Proceedings of the American Society for Clinical Oncology, 2004, 23,
abstract, 3181), and the inhibitors of the kinesin spindle protein Eg5 (
Wood et al., Curr. Opin. Pharmacol. 2001, 1, 370-377).
[0119] The compounds disclosed herein can be combined with other signal transduction inhibitors.
Of particular interest are signal transduction inhibitors which target the EGFR family,
such as EGFR, HER-2, and HER-4 (
Raymond et al., Drugs, 2000, 60 (Suppl.1), 15-23;
Harari et al., Oncogene, 2000, 19 (53), 6102-6114), and their respective ligands. Examples of such agents include, by no way of limitation,
antibody therapies such as Herceptin (trastuzumab), Erbitux (cetuximab), Vectibix
(panitumumab), and pertuzumab. Examples of such therapies also include, by no way
of limitation, small-molecule kinase inhibitors such as Iressa (Gefitinib), Tarceva
(Erlotinib), Tykerb (Lapatinib) Canertinib (CI1033), AEE788 (
Traxler et al., Cancer Research, 2004, 64, 4931-4941).
[0120] The compounds disclosed herein can be combined with other signal transduction inhibitors
targeting receptor kinases of the split-kinase domain families (VEGFR, FGFR, PDGFR,
flt-3, c-kit, c-fins, and the like), and their respective ligands. These agents include,
by no way of limitation, antibodies such as Avastin (bevacizumab). These agents also
include, by no way of limitation, small-molecule inhibitors such as Gleevec/Imanitib,
Sprycel (Dasatinib), Tasigna (Nilotinib), Nexavar (Sorafenib), CHIR-265, Pazopanib
(GW-786034), Recentin (Cediranib/AZD2171), Zactima (Vandetanib), Vatalanib (PTK787/ZK222584),
Telatinib (BAY-579352), BMS-690514, BMS582664 (Brivanib), BMS540215, Axitinib (AG-013736).
Motesanib (AMG706), Sutent (Sunitinib), ZD6474 (
Hennequin et al., 92nd AACR Meeting, New Orleans, Mar. 24-28, 2001, abstract, 3152), Tivozanib (KRN-951) (
Taguchi et al., 95th AACR Meeting, Orlando, Fla, 2004, abstract, 2575), CP-547, 632 (
Beebe et al., Cancer Res. 2003, 63, 7301-7309), CP-673, 451 (
Roberts et al., Proceedings of the American Association of Cancer Research, 2004,
45, abstract, 3989), CHIR-258 (
Lee et al., Proceedings of the American Association of Cancer Research, 2004, 45,
abstract, 2130), MLN-518 (
Shen et al., Blood, 2003,102,11, abstract, 476).
[0121] The compounds disclosed herein can be combined with inhibitors of histone deacetylase.
Examples of such agents include, by no way of limitation, suberoylanilide hydroxamic
acid (SAHA), LAQ-824 (
Ottmann et al., Proceedings of the American Society for Clinical Oncology, 2004, 23,
abstract, 3024), LBH-589 (
Beck et al., Proceedings of the American Society for Clinical Oncology, 2004, 23,
abstract, 3025), MS-275 (
Ryan et al., Proceedings of the American Association of Cancer Research, 2004, 45,
abstract, 2452), FR-901228 (
Piekarz et al., Proceedings of the American Society for Clinical Oncology, 2004, 23,
abstract, 3028) and MGCDOI03 (
US 6897220).
[0122] The compounds disclosed herein can be combined with other anti-cancer agents such
as proteasome inhibitors, and m-TOR inhibitors. These include, by no way of limitation,
bortezomib (
Mackay et al., Proceedings of the American Society for Clinical Oncology, 2004, 23,
Abstract, 3109), and sirolimus (rapamycin), everolimus, temsirolimus (CCI-779) (
Wu et al., Proceedings of the American Association of Cancer Research, 2004, 45, abstract,
3849). The compounds disclosed herein can be combined with other anti-cancer agents such
as topoisomerase inhibitors, including but not limited to camptothecin.
[0123] Those additional agents may be administered separately from the compound-containing
composition, as part of a multiple dosage regimen. Alternatively, those agents may
be part of a single dosage form, mixed together with the compound disclosed herein
in a single composition. If administered as part of a multiple dosage regimen, the
two active agents may be submitted simultaneously, sequentially or within a period
of time from one another which would result in the desired activity of the agents.
[0124] The amount of both the compound and the additional therapeutic agent (in those compositions
which comprise an additional therapeutic agent as described above) that may be combined
with the carrier materials to produce a single dosage form will vary depending upon
the host treated and the particular mode of administration. Normally, the amount of
additional therapeutic agent present in the compositions disclosed herein will be
no more than the amount that would normally be administered in a composition comprising
that therapeutic agent as the only active agent. The amount of additional therapeutic
agent in the presently disclosed compositions may range from about 50 % to 100 % of
the amount normally present in a composition comprising that agent as the only therapeutically
active agent. In those compositions which comprise an additional therapeutic agent,
that additional therapeutic agent and the compound disclosed herein may act synergistically.
USES OF THE COMPOUNDS AND COMPOSITIONS OF THE INVENTION
[0125] The invention features pharmaceutical compositions as defined above. The amount of
compound in the compositions disclosed herein is such that is effective to detectably
inhibit a protein kinase, such as VEGFR/KDR, IGF/IGF1R and/or c-Met inhibitory activity.
The compounds disclosed herein are useful in therapy as antineoplasia agents or to
minimize deleterious effects of VEGF, IGF and/or HGF.
[0126] Compounds disclosed herein would be useful for, but not limited to, the prevention
or treatment of proliferative diseases, conditions, or disorders in a patient by administering
to the patient a compound or a composition disclosed herein in an effective amount.
Such diseases, conditions, or disorders include cancer, particularly metastatic cancer,
atherosclerosis, and lung fibrosis.
[0127] Compounds disclosed herein would be useful for the treatment of neoplasia including
cancer and metastasis, including, but not limited to: carcinoma such as cancer of
the bladder, breast, colon, kidney, liver, lung (including small cell lung cancer),
esophagus, gall-bladder, ovary, pancreas, stomach, cervix, thyroid, prostate, and
skin (including squamous cell carcinoma); hematopoietic tumors of lymphoid lineage
(including leukemia, acute lymphocitic leukemia, acute lymphoblastic leukemia, B-cell
lymphoma, T-cell-lymphoma, Hodgkin's lymphoma, non-Hodgkin's lymphoma, hairy cell
lymphoma and Burkett's lymphoma); hematopoietic tumors of myeloid lineage (including
acute and chronic myelogenous leukemias, myelodysplastic syndrome and promyclocytic
leukemia); tumors of mesenchymal origin (including fibrosarcoma and rhabdomyosarcoma,
and other sarcomas,
e.
g. soft tissue and bone); tumors of the central and peripheral nervous system (including
astrocytoma, neuroblastoma, glioma and schwannomas); and other tumors (including melanoma,
seminoma, teratocarcinoma, osteosarcoma, xenoderoma pigmentosum, keratoctanthoma,
thyroid follicular cancer and Kaposi's sarcoma).
[0128] The compounds also would be useful for treatment of ophthalmological conditions such
as corneal graft rejection, ocular neovascularization, retinal neovascularization
including neovascularization following injury or infection, diabetic retinopathy,
retrolental fibroplasia and neovascular glaucoma; retinal ischemia; vitreous hemorrhage;
ulcerative diseases such as gastric ulcer; pathological, but non-malignant, conditions
such as hemangiomas, including infantile hemaginomas, angiofibroma of the nasopharynx
and avascular necrosis of bone; and disorders of the female reproductive system such
as endometriosis. The compounds are also useful for the treatment of edema, and conditions
of vascular hyperpermeability.
[0129] The compounds disclosed herein are also useful in the treatment of diabetic conditions
such as diabetic retinopathy and microangiopathy. The compounds disclosed herein are
also useful in the reduction of blood flow in a tumor in a subject. The compounds
disclosed herein are also useful in the reduction of metastasis of a tumor in a subject.
[0130] Besides being useful for human treatment, these compounds are also useful for veterinary
treatment of companion animals, exotic animals and farm animals, including mammals,
rodents, and the like. Animals may include horses, dogs, and cats. As used herein,
the compounds disclosed herein include the pharmaceutically acceptable derivatives
thereof.
[0131] Where the plural form is used for compounds, salts, and the like, this is taken to
refer to also a single compound, salt, and the like.
[0132] The treatment method not forming part of the present invention that includes administering
a compound or composition disclosed herein can further include administering to the
patient an additional therapeutic agent (combination therapy) selected from: a chemotherapeutic
or anti-pmliferative agent, or an anti-inflammatory agent, wherein the additional
therapeutic agent is appropriate for the disease being treated and the additional
therapeutic agent is administered together with a compound or composition disclosed
herein as a single dosage form or separately from the compound or composition as part
of a multiple dosage form. The additional therapeutic agent may be administered at
the same time as a compound disclosed herein or at a different time. In the latter
case, administration may be staggered by, for example, 6 hours, 12 hours, 1 day, 2
days, 3 days, 1 week, 2 weeks, 3 weeks, 1 month, or 2 months.
[0133] Also disclosed but not forming part of the present invention is a method of inhibiting
the growth of a cell that expresses VEGFR, IGF1R or c-Met, that includes contacting
the cell with a compound or composition disclosed herein, thereby causing inhibition
of growth of the cell. Examples of a cell whose growth can be inhibited include: a
breast cancer cell, a colorectal cancer cell, a lung cancer cell, a papillary carcinoma
cell, a prostate cancer cell, a lymphoma cell, a colon cancer cell, a pancreatic cancer
cell, an ovarian cancer cell, a cervical cancer cell, a central nervous system cancer
cell, an osteogenic sarcoma cell, a renal carcinoma cell, a hepatocellular carcinoma
cell, a bladder cancer cell, a gastric carcinoma cell, a head and neck squamous carcinoma
cell, a melanoma cell, or a leukemia cell.
[0134] Also disclosed but not forming part of the present invention is a method of inhibiting
VEGFR, IGF1R or c-Met kinase activity in a biological sample that includes contacting
the biological sample with a compound or composition disclosed herein. The term "biological
sample" as used herein, means a sample outside a living organism and includes, without
limitation, cell cultures or extracts thereof; biopsied material obtained from a mammal
or extracts thereof; and blood, saliva, urine, feces, semen, tears, or other body
fluids or extracts thereof. Inhibition of kinase activity, particularly VEGFR, IGF1R
or c-Met kinase activity, in a biological sample is useful for a variety of purposes
known to one of skill in the art. Examples of such purposes include, but are not limited
to, blood transfusion, organ-transplantation, biological specimen storage, and biological
assays.
[0135] An "effective amount" or "effective dose" of the compound or pharmaceutically acceptable
composition is that amount effective for treating or lessening the severity of one
or more of the aforementioned disorders. The compounds and compositions, according
to the method disclosed herein, may be administered using any amount and any route
of administration effective for treating or lessening the severity of the disorder
or disease. The exact amount required will vary from subject to subject, depending
on the species, age, and general condition of the subject, the severity of the infection,
the particular agent, its mode of administration, and the like. A compound or composition
can also be administered with one or more other therapeutic agents, as discussed above.
[0136] The compounds disclosed herein or pharmaceutical compositions thereof may also be
used for coating an implantable medical device, such as prostheses, artificial valves,
vascular grafts, stents and catheters. Vascular stents, for example, have been used
to overcome restenosis (re-narrowing of the vessel wall after injury). However, patients
using stents or other implantable devices risk clot formation or platelet activation.
These unwanted effects may be prevented or mitigated by pre-coating the device with
a pharmaceutically acceptable composition comprising a compound disclosed herein.
[0137] Suitable coatings and the general preparation of coated implantable devices are described
in
U.S. Patent Nos. 6099562,
5886026, and
5304121. The coatings are typically biocompatible polymeric materials such as a hydrogel
polymer, polymethyldisiloxane, polycaprolactone, polyethylene glycol, polylactic acid,
ethylene vinyl acetate, and mixtures thereof. The coatings may optionally be further
covered by a suitable topcoat of fluorosilicone, polysaccarides, polyethylene glycol,
phospholipids or combinations thereof to impart controlled release characteristics
into the composition. Implantable devices coated with a compound disclosed herein
are also disclosed herein. The compounds may also be coated on implantable medical
devices, such as beads, or co-formulated with a polymer or other molecule, to provide
a "drug depot" thus permitting the drug to be released over a longer time period than
administration of an aqueous solution of the drug.
GENERAL SYNTHETIC PROCEDURES
[0138] Generally, the compounds disclosed herein may be prepared by methods described herein,
wherein the substituents are as defined for formulas (I), (IV) or (V), above, except
where further noted. The following non-limiting schemes and examples are presented
to further exemplify the invention.
[0139] Persons skilled in the art will recognize that the chemical reactions described may
be readily adapted to prepare a number of other compounds disclosed herein, and alternative
methods for preparing the compounds disclosed herein are deemed to be within the scope
disclosed herein. For example, the synthesis of non-exemplified compounds according
to the invention may be successfully performed by modifications apparent to those
skilled in the art, e.g., by appropriately protecting interfering groups, by utilizing
other suitable reagents known in the art other than those described, and/or by making
routine modifications of reaction conditions. Alternatively, other reactions disclosed
herein or known in the art will be recognized as having applicability for preparing
other compounds disclosed herein.
[0140] In the examples described below, unless otherwise indicated all temperatures are
set forth in degrees Celsius. Reagents were purchased from commercial suppliers such
as Aldrich Chemical Company, Arco Chemical Company and Alfa Chemical Company, and
were used without further purification unless otherwise indicated. Common solvents
were purchased from commercial suppliers such as Shantou XiLong Chemical Factory,
Guangdong Guanghua Reagent Chemical Factory Co. Ltd., Guangzhou Reagent Chemical Factory,
Tianjin YuYu Fine Chemical Ltd., Qingdao Tenglong Reagent Chemical Ltd., and Qingdao
Ocean Chemical Factory.
[0141] Anhydrous THF, dioxane, toluene, and ether were obtained by refluxing the solvent
with sodium. Anhydrous CH
2Cl
2 and CHCl
3 were obtained by refluxing the solvent with CaH
2. EtOAc, PE, hexane, DMA and DMF were treated with anhydrous Na
2SO
4 prior use.
[0142] The reactions set forth below were done generally under a positive pressure of nitrogen
or argon or with a drying tube (unless otherwise stated) in anhydrous solvents, and
the reaction flasks were typically fitted with rubber septa for the introduction of
substrates and reagents via syringe. Glassware was oven dried and/or heat dried.
[0143] Column chromatography was conducted using a silica gel column. Silica gel (300 -
400 mesh) was purchased from Qingdao Ocean Chemical Factory.
1H NMR spectra were recorded with a Bruker 400 MHz spectrometer at ambient temperature.
1H NMR spectra were obtained as CDCl
3, d
6-DMSO, CD
3OD or d
6-acetone solutions (reported in ppm), using TMS (0 ppm) or chloroform (7.25 ppm) as
the reference standard. When peak multiplicities are reported, the following abbreviations
are used: s (singlet), d (doublet), t (triplet), m (multiplet), br (broadened), dd
(doublet of doublets), dt (doublet of triplets). Coupling constants, when given, are
reported in Hertz (Hz).
[0144] Low-resolution mass spectral (MS) data were determined on an Agilent 1200 Series
LCMS (Zorbax SB-C18, 2.1 × 30 mm, 4 micorn, 10 min, 0.6 mL/min flow rate, 5 to 95
% (0.1 % formic acid in CH
3CN) in (0.1 % formic acid in H
2O) with UV detection at 210/254 nm and a low resonance electrospray mode (ESI).
[0145] Purities of compounds were assessed by Agilent 1100 Series high performance liquid
chromatography (HPLC) with UV detection at 210 nm and 254 nm (Zorbax SB-C18, 2.1 ×
30 mm, 4 micorn,10 min, 0.6 mL/min flow rate, 5 to 95 % (0.1 % formic acid in CH
3CN) in (0.1 % formic acid in H
2O). Column was operated at 40 °C.
[0146] The following abbreviations are used throughout the specification:
HOAc acetic acid
MeCN, CH3CN acetonitrile
NH3 ammonia
NH4Cl ammonium chloride
HBTU O-benzotriazol-1-yl-N,N,N',N'-tetramethyluronium hexafluorophosphate
HATU O-(7-azabenzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate
PyBop benzotriazol-1-yl-oxy-tripyrrolidino-phosphonium hexafluorophosphate
Pd2(dba)3 bis(dibenzylideneacetone) palladium
BINAP 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl
TEAC bis(tetra-ethylammonium)carbonate
BBr3 boron tribromide
BSA bovine serum albumin
Br2 bromine
BOC, Boc tert-butyloxycarbonyl
Cs2CO3 cesium carbonate
CHCl3 chloroform
CDCl3 chloroform deuterated
Cu copper
CuI copper(I) iodide
Et2O diethyl ether
DBU 1,8-diazabicyclo[5,4,0]undec-7-ene
DIBAL diisobutylaluminum hydride
DIAD diisopropyl azodicarboxylate
DIEA diisopropylethylamine
DEAD dimethyl azodicarboxylate
DMF dimethylformamide
DMAP 4-dimethylaminopyridine
DMSO dimethylsulfoxide
EDC, EDCI 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride dppa diphenylphosphoryl
azide
EtOAc ethyl acetate
FBS fetal bovine serum g gram h hour
HBr hydrobromic acid
HCl hydrochloric acid
HOBt 1-hydroxybenzotriazole hydrate
H2 hydrogen
H2O2 hydrogen peroxide
Fe iron
LiHMDS lithium bis(trimethylsilyl)-amide
LDA lithium diisopropylamide
MCPBA meta-chloroperbenzoic acid
MgSO4 magnesium sulfate
MeOH, CH3OH methanol
MeI methyl iodide
CH2Cl2, DCM methylene chloride
NMP N-methylpyrrolidinone
mL, ml milliliter
N2 nitrogen
Pd/C palladium on carbon
Pd(OAc)2 palladium acetate
Pd(OH)2 palladium hydroxide
Pd(PPh3)4 palladium tetrakis triphenylphosphine
Pd(dppf)Cl2 1,1-bis(diphenylphosphino)ferrocene palladium chloride
PE petroleum ether (60 - 90 °C)
PBS phosphate buffered saline
POCl3 phosphorous oxychloride
K2CO3 potassium carbonate
KOH potassium hydroxide
RT, rt room temperature
Rt retention time
NaHCO3 sodium bicarbonate
NaBH4 sodium borohydride
NaBH3CN sodium cyanoborohydride
NaOtBu sodium tert-butoxide
NaOH sodium hydroxide
NaClO2 sodium chlorite
NaCl sodium chloride
NaH2PO4 sodium dihydric phosphate
NaH sodium hydride
Nal sodium iodide
Na2SO4 sodium sulfate
TBTU O-benzotriazol-1-yl-N,N,N',N'-tetramethyluronium tetrafluoroborate
THF tetrahydrofuran
Et3N, TEA triethylamine
TFA trifluoroacetic acid
P(t-bu)3 tri(tert-butyl)phosphine
NBS N-bromosuccinimide
TBAI Tetrabutylammonium iodide
H2O water


[0147] Substituted compounds
7, where W
1, W
2, W
3 and W
4 are CH, X
1 is O; R
1 (
i.
e. EO-), R
5, and PG are as defined above, can be prepared by the process illustrated in Scheme
1. The substituted aryl
1 is nitrated to give compound
2 by a suitable nitration reagent such as HNO
3 at appropriate temperature such as 0 °C. The NO
2 group is then reduced by a reducing reagent such as Fe or Zn powder, or under hydrogenation
condition in the presence of Pd catalyst such as Pd/C. Aniline
3 is condensed with a formate such as ethyl formate under basic condition to give substituted
quinoline
4. Coupling of
4 with appropriate aryl derivatives yields substituted diaryl ethers
5. The protecting group PG is removed to provide compound
6, which is condensed with E-L (L = a suitable leaving group such as OMs, Cl, Br or
I; E = aliphatic, heterocyclic aliphatic, fused heterobicyclic aliphatic, spiro heterobicyclic
aliphatic, cyclic aliphatic, fused bicyclic aliphatic, spiro bicyclic aliphatic, heterocyclic,
fused heterobicyclic, spiro heterobicyclic, cyclic, fused bicyclic, spiro bicyclic,
etc.) to afford desired kinase inhibitor
7.

[0148] Alternatively, substituted indole/azaindole analogs
11 can be synthesized through the procedure depicted in Scheme 2. Where R
1, X
1, U
2 and PG are as defined above, R is H, R
5aR
5N-, aliphatic, alkoxy, haloalkyl, heterocyclyl, heterocyclylalkyl, cycloalkyl, cycloalkylalkyl,
cycloalkylalkoxy or heterocyclylalkoxy. Substituted 2-aminopyrazole
8 is first transformed to
9 in a similar fashion as described in Scheme 1. The OH group is then replaced with
a good leaving group L, such as Cl, F or OMs. L in compound
10 is converted to a kinase inhibitor
11 in the presence of base such as Cs
2CO
3, NaOH, DMAP, or lutidine in a solvent such as dioxane, toluene, or DMA, etc. preferably
at elevated temperature.

[0149] Alternatively, substituted kinase inhibitor
16 can be prepared using a process as demonstrated in Scheme 3. Where W
1, W
2, W
3, W
4, R
1 (
i.
e. EO-), R
3, U
1, U
2, X
1 and PG are as defined above. Condensation of
12 with a nitro-aryl derivative gives compound
13. Deprotection removes the protecting group PG leading to compound
14. Attachment of E group through a coupling process followed by the reduction of nitro
group affords compound
15. Coupling of aniline
15 with an acid in the presence of coupling reagent such as EDCI or HATU furnishes desired
kinase inhibitor
16.

[0150] Alternatively, kinase inhibitors can be obtained through the process as described
in Scheme 4. Where R
1 (
i.
e. EO-), R
2 and PG are as defined above. Thus, compound
20 is prepared through Pd catalyzed amination of 2-chloropyridine derivative
19. Coupling of aniline
20 with an acid followed by the removal of protecting group PG gives compound
22. An appropriate group such as spiro or bicyclic moiety is appended to the quinoline
portion to yield compound
23. In the above structures, R is structures defined by V
1, V
2, V
3, and V
4 in Formula (IIa), or structures defined by Z
1, Z
2, X
2, and X
3 in Fomular (IIb).
EXAMPLES
[0151] Examples 4, 5, 9,10, 23, 25, and 27 do not form part of the present invention.
Example 1
N-(4-(7-(((5S)-4-methyl-4-azaspiro[2.4]heptane-5-yl)methoxy)quinolin-4-yloxy)-3-fluorophenyl)-2.3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0152]

Step1) (S)-5-((tetrahydro-2H-pyran-2-yloxy)methyl)pyrrolidin-2-one
[0153] To a mixture of (S)-5-(hydroxymethyl)pyrrolidin-2-one (1.0 g, 8.7 mmol, Aldrich)
and DHP (1.46 g, 17.4 mmol, Alfa) in 20 mL of dichloromethane was added PPTS (0.437
g, 1.74 mmol, Aldrich) in portions. The reaction mixture was stirred at rt for 4 hrs,
and was quenched with 20 mL of saturated NaHCO
3 aqueous solution. The resulted mixture was extracted with dichloromethane (25 mL×2).
The combined organic phases were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (EtOAc) to give the
title compound (as a diastereomer mixture) as colorless oil (0.9 g, 52 %).
MS (ESI, pos. ion) m/z: 199.9 (M+1);
1H NMR (400MHz, CDCl
3): δ1.69 - 1.88 (m, 6H), 2.25 - 2.28 (m, 2H), 2.32 - 2.35 (m, 2H), 3.23 (m, 1H), 3.48
- 3.55 (m, 2H), 3.78 - 3.85 (m, 2H), 4.58 (m, 1H).
Step2) (S)-1-methyl-5-((tetrahydro-2H-pyran-2-yloxy)methyl)pyrrolidin-2-one
[0154] To a mixture of NaH (0.48 g, 12 mmol, 60 % mineral oil, Aldrich) in 15 mL of DMF
was added a solution of (S)-5-((tetrahydro-2H-pyran-2-yloxy)methyl) pyrrolidin-2-one
(2 g,10 mmol) in 5 mL of DMF via a syringe at -40 °C. The reaction was stirred at
-40 °C for 1 hr. CH
3I (0.9 mL, 12 mmol,
Shanghai Jingchun Reagent Ltd.) was added dropwise via a syringe. The reaction was continued
to stir at -40 °C for 4 hrs, and was quenched with 10 mL of saturated NaHSO
3 aqueous solution. The mixture was extracted with ethyl acetate (50 mL×3). The combined
organic phases were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (EtOAc) to give the
desired product as colorless oil (1.98 g, 92 %).
MS (ESI, pos. ion) m/z: 214.0 (M+1);
1H NMR (400MHz, CDCl3): δ1.69 - 1.88 (m, 6H), 1.93 - 2.17 (m, 2H), 2.33 - 2.47 (m,
2H), 2.90 (3H, s), 3.40 - 3.52 (m, 2H), 3.80 - 3.90 (m, 2H), 3.78 (m, 1H), 4.60 (m,
1H).
Step3) (5S)-4-methyl-5-((tetrahydro-2H-pyran-2-yloxy)methyl)-4-azaspiro[2.4]heptane
[0155] To a mixture of (S)-1-methyl-5-((tetrahydro-2H-pyran-2-yloxy)methyl)-pyrrolidin-2-one
(0.6 g, 2.82 mmol) in 20 mL of THF was added Ti(Oi-Pr)
4 (2.56 mL, 8.45 mmol, d = 0.937 g/L, Aldrich) via a syringe under nitrogen at rt.
After stirring at rt for 30 min, EtMgBr (5.63 mL, 16.9 mmol, 3M ether solution, Aldrich)
was added via a syringe pump over 3 hrs. The reaction was continued to stir at rt
overnight, and then quenched with a mixture of 20 mL of water and 30 mL of ethyl acetate.
After stirring for 20 min, the mixture was filtered through a celite pad. The filtrate
was extracted with ethyl acetate (30 mL×3). The combined organic phases were dried
over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (50:1 (v/v) CH
2Cl
2/ CH
3OH) to afford (5S)-4-methyl-5-((tetrahydro-2H-pyran-2-yloxy)methyl)-4-azaspiro[2.4]heptane
as pale yellow oil (64 mg, 10 %).
MS (ESI, pos. ion) m/z: 226.0 (M+1);
1H NMR (400MHz, CDCl
3): 50.23 (m, 1H), 0.46 (m, 1H), 0.63 (m, 1H), 0.86 (m, 1H), 1.58 - 1.90 (m, 10H),
2.13 (s, 3H), 2.85 (m, 1H), 3.37 - 3.50 (m, 2H), 3.72 - 3.89 (m, 2H), 4.62 (m, 1H).
Step4) (5S)-4-methyl-5-(hydroxymethyl)-4-azaspiro[2.4]heptane
[0156] To a mixture of (5S)-4-methyl-5-((tetrahydro-2H-pyran-2-yloxy)methyl)-4-azaspiro[2.4]heptane
(64 mg, 0.284 mmol) in 10 mL of methanol was added 4-methylbenzenesulfonic acid (97.8
mg, 0.568 mmol, Aldrich). The reaction mixture was stirred at 50 °C overnight, and
then concentrated
in vacuo. The residue was treated with 10 mL of saturated Na
2CO
3 aqueous solution, and extracted with dichloromethane (20 mL×3). The combined organic
phases were dried over Na
2SO
4 and concentrated
in vacuo to give the desired product as yellow oil (32 mg, 80 %).
MS (ESI, pos. ion) m/z: 142.0 (M+1).
Step5) ((5S)-4-methyl-4-azaspiro[2.4]heptane-5-yl)methyl methanesulfonate
[0157] A mixture of (5S)-4-methyl-5-(hydroxymethyl)-4-azaspiro[2.4]heptane (0.2 g, 1.42
mmol) and triethylamine (0.287g, 2.84 mmol,
Shantou Xilong chemical factory) in 5 mL of dichloromethane was stirred at 0 °C for 30 min.
To the mixture was added methanesulfonyl chloride (0.325 g, 2.84 mmol,
Shanghai Haiqu chemical. Ltd.) via a syringe. The reaction mixture was stirred at 0 °C for
4 hrs and quenched with a mixture of 5 mL of saturated Na
2CO
3 aqueous solution and 5 mL of water. The resulted mixture was extracted with dichloromethane
(20 mL×3). The combined organic phases were dried over Na
2SO
4 and concentrated
in vacuo to give ((5S)-4-methyl-4-azaspiro[2.4]heptane-5-yl)methyl methanesulfonate as yellow
oil (150 mg, 48 %).
Step6) N-(4-(7-(((5S)-4-methyl-4-azaspiro[2.4]heptane-5-yl)methoxy)quinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0158]

[0159] To a mixture of ((5S)-4-methyl-4-azaspiro[2.4]heptane-5-yl)methyl methanesulfonate
(150 mg, 0.685 mmol) and N-(4-(7-hydroxyquinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
(331.5 mg, 0.685 mmol) in 8 mL of N,N-dimethylacetamide was added cesium carbonate
(893 mg, 2.74 mmol, Aladdin). After stirring at 40 °C for 3 days, the reaction mixture
was concentrated
in vacuo and the residue was chromatographed with a silica gel column (50:1 1 (v/v) CH
2Cl
2 / CH
3OH) to give the desired product as a pale yellow solid (25 mg, 6 %).
MS (ESI, pos. ion) m/z: 304.5 [(M/2)+1]; LC-MS Rt : 3.402 min;
1H NMR (400MHz, CDCl
3): δ0.32 (m,1H), 0.52 (m, 1H), 0.71 (m,1H), 0.92 (m, 1H), 1.52 (m, 2H), 1.85 (m, 2H),
3.19 (m, 1H), 2.26 (s, 3H), 2.80 (s, 3H), 3.37 (s, 3H), 4.11 (m, 1H), 4.22 (m, 1H),
6.40 (d, J=5.2Hz, 1H), 7.16 (t, J=8.4Hz, 1H), 7.30 (m, 1H), 7.36 (m, 2H), 7.41 (m,
1H), 7.48 (m, 2H), 7.56 (m, 2H), 7.91 (dd, J=12Hz, 1H), 8.26 (d, J=9Hz, 1H), 8.58
(d, J=5Hz, 1H), 10.88 (s, 1H).
Example 2
N-(4-(7-(((5R)-4-oxaspiro[2.4]heptane-5-yl)methoxyl)quinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0160]

Step 1) (S)-tetrahydro-5-oxofuran-2-carboxylic acid
[0161] To a solution of L-glutamic acid (10.07 g, 0.068 mol, J&K CHEMICA) in 20 ml of concd.
HCl and 40 mL H
2O was added a solution of NaNO
2 (7.0 g, 0.102 mol,
Shantou Xilong chemical factory) in H
2O (20 mL) slowly at -5 °C. The mixture was continued to stir for 12 hrs at room temperature.
The reaction mixture was evaporated
in vacuo below 50 °C to give yellow oil, which was dissolved in EtOAc. The solid formed was
filtered and washed with EtOAc. The filtrate and washing solution were combined, dried
over Na
2SO
4. The solvent was concentrated
in vacuo to give (S)-tetrahydro-5-oxofuran-2-carboxylic acid as pale yellow oil (8.1 g, 91.6
%)
1.
MS (ESI, pos. ion) m/z: 130.9 (M+1);
1H NMR (400MHz, CDCl
3): δ2.27 - 2.41 (m, 1H), 2.44 - 2.65 (m, 3H), 5.09 (m,1H), 9.12 - 9.55 (m, 1H).
Step 2) (S)-5-(hydroxymethyl)-dihydrofuran-2(3H)-one
[0162] To a solution of (S)-5-oxo-tetrahydrofuran-2-carboxylic acid (0.6 g, 0.0046 mol)
in 10.8 mL of THF was added BH
3·Me
2S solution (2.76 mL, 0.0055 mol, 2 M in THF, Aldrich) dropwise via a syringe at -20
°C. The mixture was stirred for 12 hrs at room temperature. The reaction was then
quenched with aqueous NH
4Cl and extracted with EtOAc. The organic layer was washed with brine, dried over Na
2SO
4, and concentrated in vacuo to furnish the crude product as light yellow oil. (S)-5-(Hydroxymethyl)-dihydrofuran-2(3H)-one
was obtained as colorless oil (0.253 g, 47 %) after a silica gel column chromatography
purification (100:1 (v/v) CHCl
3/ MeOH)
1.
MS (ESI, pos. ion) m/z: 116.9 (M+1);
1H NMR (400MHz, CDCl
3): 82.11 - 2.15 (m, 1H), 2.20 - 2.29 (m, 1H), 2.46 - 2.51 (m, 2H), 3.63 (t, 2H), 3.83
- 3.86 (d, J=14.8Hz, 1H), 4.58 - 4.63 (m, 1H).
Step 3) (5S)-5-((tetrahydro-2H-pyran-2-yloxy)methyl)-dihydrofuran-2(3H)-one
[0163] To a mixture of (S)-5-(hydroxymethyl)-dihydrofuran-2(3H)-one (1.78 g, 0.0153 mol)
and 3,4-dihydro-2H-pyran (2.62 g, 0.0312 mol, Alfa) in 40 mL of CH
2Cl
2 was added PPTS (0.391 g, 0.00156 mol, Aldrich) slowly. After stirring at rt overnight,
the reaction mixture was quenched with 5 mL of water. The mixture was extracted with
EtOAc (50 mL×2). The combined organic phases were dried over Na
2SO
4 and concentrated
in vacuo to give pale yellow oil. The crude product was purified by a silica gel column chromatography
(3:1 (v/v) petroleum ether / EtOAc) to afford the title compound as colorless oil
(2.7 g, 88 %).
MS (ESI, pos. ion) m/z: 200.8 (M+1);
1H NMR (400MHz, CDCl
3): δ1.41 - 1.62 (m, 4H),1.64 - 1.75 (m, 2H), 2.11 - 2.19 (m, 1 H), 2.22 - 2.31 (m,
1H), 2.39 - 2.49 (m, 1 H), 2.51 - 2.62 (m, 1H), 3.41 - 3.48 (m, 1H), 3.58 - 3.62 (dd,
J
1=3.2 Hz, J
2=14.6 Hz, 1H), 3.74 - 3.79 (m, 1H), 3.85 - 3.92 (dd, J
1=3.2 Hz, J
2=14.4 Hz, 1H), 4.55 - 4.72 (m, 2H).
Step 4) 1-((S)-3-hydroxy-4-(tetrahydro-2H-pyran-2-yloxy)butyl)cyclopropanol
[0164] To a mixture of Ti(OiPr)
4 (0.33 mL, 0.001 mol, Ardrich) and (5S)-5-((tetrahydro-2H-pyran-2-yloxy)methyl)-dihydrofuran-2(3H)-one
(1.0 g, 0.005 mol) in 18.7 mL of THF was added a solution of 3M EtMgBr in Et
2O (4.3 mL, 0.0125 mol, Aldrich) via a syringe over 3 hrs at 15 °C. After stirring
for additional one hour at 15 °C, the reaction was quenched with 20 mL of saturated
NH
4Cl solution, filtered and extracted with EtOAc (50 mL×2). The combined organic phases
were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography to afford 1-((S)-3-hydroxy-4-(tetrahydro-2H-pyran-2-yloxy)butyl)cyclopropanol
as colorless oil (0.853 g, 74 %)
2.
MS (ESI, pos. ion) m/z: 253.0 (M+23);
1H NMR (400MHz, CDCl
3): δ0.4 - 0.5 (s, 1H), 0.67 - 0.87 (m, 3H), 1.4 -1.9 (m,12H), 3.38 - 3.44 (m, 1H),
3.53 - 3.60 (m, 1H), 3.75 - 3.78 (m, 1H), 3.87 - 3.96 (m, 1H), 4.57 (d, J=2.4 Hz,
1H).
Step 5) (5R)-5-((tetrahydro-2H-pyran-2-yloxy)methyl)-4-oxaspiro[2.4]heptane
[0165] To a solution of 1-((S)-3-hydroxy-4-(tetrahydro-2H-pyran-2-yloxy)butyl)-cyclopropanol
(1.73 g, 0.0075 mol) and PPh
3 (2.95 g, 0.0113 mol, Richjoint) in 32 mL of anhydrous THF at rt under N
2 was added DEAD (1.96 g, 0.0113 mol, Aladdin) dropwise via a syringe. The reaction
was stirred at 60 °C for 12 hours. The solvent was concentrated
in vacuo. The red oil was purified by a silica gel column chromatography (8:1 (v/v) n-hexane
/ EtOAc) to give the title compound as colorless oil (1.1 g, 64 %)
2.
MS (ESI, pos. ion) m/z: 213.0 (M+1);
1H NMR (400MHz, CDCl
3):δ 0.4 - 0.6 (m, 2H), 0.75 - 0.95 (s, 2H), 1.4 -1.9 (m, 10H), 3.45 - 3.52 (m, 2H),
3.73 - 3.79 (m, 1H), 3.80 - 3.90 (m, 1H), 4.23 - 4.28 (m, 1H), 4.63 - 4.69 (s, 1H).
Step 6) (5R)-5-(hydroxymethyl)-4-oxaspiro[2.4]heptane
[0166] To a mixture of (5R)-5-((tetrahydro-2H-pyran-2-yloxy)methyl)-4-oxaspiro[2.4]heptane
(101 mg, 0.48 mmol) in 5 mL of MeOH was added PPTS (12.1 mg, 0.048 mol, Aldrich) at
room temperature. The reaction mixture was stirred at 40 °C overnight and then concentrated
in vacuo. The residue was purified by a silica gel column chromatography (CH
2Cl
2) to give the title compound as colorless oil (55 mg, 89 %).
1H NMR (400MHz, CDCl
3): 50.4 - 0.6 (m, 2H), 0.75 - 0.95 (m, 2H),1.84 - 1.91 (m, 1H), 1.94 -1.98 (m, 2H),
2.07 - 2.13 (m, 1H), 2.27 (s, 1H), 3.56 - 3.70 (m, 2H), 4.16 - 4.18 (m, 1H).
Step 7) ((5R)-4-oxaspiro[2.4]heptane-5-yl)methyl methanesulfonate
[0167] To a mixture of (5R)-5-(hydroxymethyl)-4-oxaspiro[2.4]heptane (116 mg, 0.9 mmol)
and Et
3N (183.8 mg, 1.82 mmol,
Shantou Xilong chemical factory) in dry CH
2Cl
2 (6 mL) at -10 °C under N
2, was added MsCl (203 mg, 1.4 mmol,
Shanghai Haiqu chemical Ltd.) dropwise via a syringe. After stirring for 2 hrs at rt, the
reaction was quenched with water ice (3 mL), and the water phases were extracted with
CH
2Cl
2 (20 mL×2). The combined organic phases were dried over Na
2SO
4, and concentrated
in vacuo to give ((5R)-4-oxaspiro[2.4]heptane-5-yl)methyl methanesulfonate as pale yellow
oil.
Step 8) N-(4-(7-(((5R)-4-oxaspiro[2.4]heptane-5-yl)methoxyl)quinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0168]

[0169] To a mixture of N-(4-(7-hydroxyquinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
(300 mg, 0.62 mmol) and cesium carbonate (1.0 g, 3.1 mmol, Aladdin) in N,N-dimethylacetamide
(1 mL) was added ((5R)-4-oxaspiro[2.4]heptane-5-yl)methyl methanesulfonate (187.5
mg, 0.91 mmol) in 3 mL of N,N-dimethylacetamide. After stirring at 40°C for 3 days,
the reaction mixture was concentrated
in vacuo and was chromatographed with a silica gel column (1:6 (v/v) n-hexane / EtOAc) to
afford the title compound as a colorless solid (220 mg, 60 %).
MS (ESI, pos. ion) m/z: 595.7 (M+1); LC-MS Rt: 4.17 min;
1H NMR (400MHz, CDCl
3): δ 0.63 (m, 2H), 0.91 (m, 2H), 2.03 (d, J=5.2Hz, 3H), 2.29 (m, 1H), 2.80 (s, 3H),
3.38 (s, 3H), 4.17 (dd, J
1=16Hz, J
2=2.4Hz, 2H), 4.49 (m, 1H), 6.40 (d, J=5.2Hz, 1H), 7.16 (t, 1H), 7.26 (d, J=5.2Hz,
1H), 7.29 (d, J=2Hz, 1H), 7.38 (m, 3H), 7.48 (m, 1H), 7.56 (t, 2H), 7.90 (dd, J
1=14.8Hz, J
2=2.4Hz, 1H), 8.26 (d, J=9.2Hz, 1H), 8.58 (d, J=5.6Hz, 1H), 10.87 (s, 1H).
Example 3
N-(5-(7-(((5R)-4-oxaspiro[2,4]heptane-5-yl)methoxyl)quinolin-4-yloxy)pyridin-2-yl)2,3-dihydro-1,5-methyl-3-oxo-2
phenyl-1H-pyrazol-4-carboxamide
[0170]

[0171] The title compound was prepared according to the procedure described in Example
2 by using N-(5-(7-hydroxyquinolin-4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
(280 mg, 0.69 mmol), cesium carbonate (1.17 g, 3.45 mmol, Aladdin), and ((5R)-4-oxaspiro[2.4]heptane-5-yl)methyl
methanesulfonate (204 mg, 0.99 mmol) in DMA (5 mL). The title compound was purified
by a silica gel column chromatography (1:8 (v/v) n-hexane / EtOAc) as a colorless
solid (110 mg, 27.6 %).
MS (ESI, pos. ion) m/z: 578.1 (M+1); LC-MS Rt: 4.11 min;
1H NMR (400MHz, CDCl
3): δ0.55 (m, 2H), 0.92 (m, 2H), 2.03 (m, 3H), 2.31 (m, 1H), 2.81 (s, 3H), 3.38 (s,
3H), 4.18 (m, 2H), 4.52 (m, 1H), 6.43 (d, J=5.6Hz, 1H), 7.28 (d, J=2.4Hz, 1H), 7.30
(d, J=2.4Hz, 1H), 7.39 (m, 3H), 7.51 (m, 4H), 8.23 (t, 1H), 8.38 (d, J=8.8Hz, 1H),
8.60 (d, J=5.6Hz, 1H), 11.25 (s, 1H).
Reference Example 4
N-(3-fluoro-4-(7-(2-(1-hydroxycyclopropyl)ethoxy)quinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2
phenyl-2.3-dihydro-1H-pyrazole-4-carboxamide
[0172]

Step 1) 3-(tetrahydro-2H-pyran-2-yloxy)propanoic acid
[0173] To a mixture of 3-hydroxypropanoic acid (7.2 g, 80 mmol, TCI, TOKYO KASEI) and DHP
(13.4 g, 160 mmol, Alfa) in dichloromethane (100 mL) and THF (100 mL) was added PPTS
(2 g, 8 mmol, Aldrich) in portions. The reaction mixture was stirred at rt overnight,
and was quenched with 50 mL of saturated NaHCO
3 aqueous solution. The resulted mixture was extracted with dichloromethane (50 mL×5).
The combined organic phases were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (1:1 (v/v) petroleum
ether / EtOAc) to give colorless oil (7.8 g, 56%).
MS (ESI, pos. ion) m/z: 196.9 (M+Na
+); (ESI, negative. ion) m/z: 172.8 (M-1).
Step 2) benzyl 3-(tetrahydro:2H-pyran-2-yloxy)propanoate
[0174] To a solution of 3-(tetrahydro-2H-pyran-2-yloxy) propanoic acid (1 g, 5.7 mmol) and
TEA (0.863 g, 8.55 mmol,
Shantou Xilong chemical factory) in 50 mL of CH
2Cl
2 was added BnBr (0.98 g, 5.7 mmol, Aldrich) via a syringe at 0°C. After stirring at
rt overnight, the reaction mixture was quenched with 20 mL of water, and was extracted
with ethyl acetate (50 mL×3). The combined organic phases were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (20:1 (v/v) petroleum
ether / EtOAc) to give the title compound as colorless oil (270 mg, 18.6%).
MS (ESI, pos. ion) m/z: 287.0 (M+23);
1H NMR (400MHz, CDCl
3): δ1.42 -1.79 (m, 6H), 2.65 - 2.68 (t, 2H), 3.48 - 3.80 (dd, J=12.8Hz, 2H), 3.71
- 4.01 (dd, J=12Hz, 2H), 4.61(d, 1H), 5.15 (s, 2H), 3.71 - 7.36 (m, 5H).
Step 3) 1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)cyclopropanol
[0175] To a mixture of benzyl 3-(tetrahydro-2H-pyran-2-yloxy)propanoate (150 mg, 0.568 mmol)
in 2 mL of THF was added Ti(Oi-Pr)
4 (0.18 mL, 0.568 mmol, d= 0.955 g/L, Ardrich) via a syringe under nitrogen at rt.
After stirring at 18 °C for 30 min, EtMgBr (0.48 mL, 1.42 mmol, 3M ether solution,
Aldrich) was added via a syringe pump over 2 hrs. The reaction was quenched with 5
mL of water, after benzyl 3-(tetrahydro-2H-pyran-2-yloxy)propanoate was consumed completely
(monitored by TLC). The mixture was filtered through a celite pad and the filtrate
was extracted with ethyl acetate (30 mL×3). The combined organic phases were dried
over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (10:1 (v/v) petroleum
ether / EtOAc) to afford 1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)cyclopropanol as
colorless oil (60 mg, 57 %).
1H NMR (400MHz, CDCl
3): δ0.46 (m, 2H), 0.75 - 0.88 (d, 2H),1.55 - 1.83 (m, 6H),1.87 - 1.90 (m, 2H), 3.55
(q, 1H), 3.69 (q, 1H), 3.88 (t, 1H), 4.06 (t, 1H), 4.66 (s, 1H).
Step 4) 1-(2-hydroxyethyl)cyclopropanol
[0176] To a mixture of 1-(2-(tetrahydro-2H-pyran-2-yloxy)ethyl)cyclopropanol (380 mg, 2.04
mmol) in 20 mL of methanol was added PPTS (51 mg, 0.204 mmol, Aldrich). The reaction
mixture was stirred at 40 °C overnight, then treated with 10 mL of water. The resulted
mixture was extracted with dichloromethane (20 mL×3). The combined organic phases
were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (10:1 (v/v) petroleum
ether / EtOAc) to give the title compound as colorless oil (170 mg, 81.7 %).
1H NMR (400MHz, CDCl
3): δ0.55 (t, 2H), 0.85 (t, 2H), 1.85 (t, 2H), 4.02 (t, 2H).
Step 5) 2-(1-hydroxycyclopropyl)ethyl methanesulfonate
[0177] A mixture of 1-(2-hydroxyethyl)cyclopropanol (86 mg, 0.843 mmol) and triethylamine
(136 mg, 1.35 mmol,
Shantou Xilong chemical factory) in 10 mL of dichloromethane was stirred at -10 °C for 30
min. Methanesulfonyl chloride (106 mg, 0.927 mmol,
Shanghai Haiqu chemical Ltd.) was then added via a syringe. The reaction was stirred at -10
°C for 1 hr at rt and then quenched with 1 mL ice-water. The resulted mixture was
extracted with dichloromethane (20 mL×3). The combined organic phases were dried over
Na
2SO
4 and concentrated
in vacuo to afford 2-(1-hydroxycyclopropyl)ethyl methanesulfonate as yellow oil (used in the
next step without further purification).
Step 6) N-(3-fluoro-4-(7-(2-(1-hydroxycyclopropyl)ethoxy)quinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-
pyrazole-4-carboxamide
[0178]

[0179] To a mixture of N-(3-fluoro-4-(7-hydroxyquinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
(204 mg, 0.421 mmol) and 2-(1-hydroxycyclopropyl)ethyl methanesulfonate (152 mg, 0.843
mmol) in 8 mL of DMA was added cesium carbonate (1.37 g, 4.2 mmol, Aladdin). After
stirring at 40 °C for 1 day, the reaction mixture was concentrated
in vacuo and the residue was chromatographed with a silica gel column (50:1 (v/v) CH
2Cl
2/ CH
3OH) to afford the title compound as a white solid ( 60 mg, 25 %).
MS (ESI, pos. ion) m/z: 569.1 (M+1); LC-MS Rt: 3.948 min;
1H NMR (400MHz, CDCl
3): δ0.57 (d, J=8 Hz, 2H), 0.86 (d, J=8 Hz, 2H), 2.14 (t, 2H), 2.80 (s, 3H), 3.37 (s,
3H), 4.43 (t, 2H), 6.41 (d, J=4 Hz, 1H), 7.14 - 7.23 (m, 2H), 7.26 - 7.35 (m, 1H),
7.37 - 7.38 (m, 2H), 7.45 - 7.50 (m, 2H), 7.50 - 7.58 (m, 2H), 7.90 - 7.93 (dd, J=2.4Hz,
1H), 8.27 (d, J=8Hz, 1H), 8.58 (d, J=8Hz, 1H), 10.89 (s, 1H).
Reference Example 5
N-(3-fluoro-4-(7-((1-cyclopropyl methanesulfonate-1-yl)methoxyl)quinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
[0180]

Step 1) ethyl 2-(tetrahydro-2H-pyran-2-yloxy)acetate
[0181] To a mixture of ethyl 2-hydroxyacetate (2 g, 20 mmol, TCI) and 3,4-dihydro-2H-pyran
(3.2 g, 40 mmol, Alfa) in 40 mL of CH
2Cl
2 was added PPTS (500 mg, 2 mmol, Aldrich) in portions at rt. The mixture was stirred
at rt for 4 hours. The reaction mixture was then washed with brine, and the organic
layer was separated and the combined organic phases were dried over Na
2SO
4, concentrated
in vacuo. The residue was purified by a silica gel column chromatography (20:1 (v/v) petroleum
ether / EtOAc) to give the desired compound as colorless oil (3.01 g, 81 %).
1H NMR (400MHz, CDCl
3): δ 1.25 -1.32 (m, 3H), 1.55 - 1.63 (m, 3H), 1.69 - 1.88 (m, 3H), 3.50 - 3.53 (m,
1H), 3.82 - 3.88 (m, 1H), 4.18 - 4.23 (m, 4H), 4.73 (t, J=3.2Hz, 1H).
Step 2) 1-((tetrahydro-2H-pyran-2-yloxy)methyl)cyclopropanol
[0182] To a mixture of ethyl 2-(tetrahydro-2H-pyran-2-yloxy)acetate (1 g, 5.3 mmol) and
Ti(O-
iPr)
4 (1.06 mL, 3.5 mmol, Aldrich) in 18 mL of THF under N
2 was added EtMgBr (4.5 mL, 13.25 mmol, 3M ether solution, Aldrich) dropwise over 2
hrs, and the temperature must be kept at 15-20 °C. After stirring for 2 hrs, and the
reaction mixture was quenched with saturated NH
4Cl aqueous solution at 0°C and extracted with EtOAc (30 mL×3). The combined organic
phases were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (20:1 (v/v) petroleum
ether / EtOAc) to afford 1-((tetrahydro-2H-pyran-2-yloxy)methyl)cyclopropanol as colorless
oil (500 mg, 55 %).
1H NMR (400MHz, CDCl
3): δ 0.51 - 0.67 (m, 2H), 0.77 - 0.85 (m, 2H), 1.55 -1.65 (m, 4H), 1.74 - 1.87 (m,
2H), 3.50 - 3.55 (m, 2H), 3.81 (d, J=11.6Hz, 1H), 3.93 - 3.98 (m, 2H), 4.64 - 4.66
(m, 1H).
Step 3) 1-(hydroxymethyl)cyclopropanol
[0183] To a mixture of 1-((tetrahydro-2H-pyran-2-yloxy)methyl)cyclopropanol (420 mg, 2.44
mmol) in 30 mL of MeOH was added PPTS (61 mg, 0.244 mmol, Aldrich) at rt. The reaction
mixture was stirred at rt overnight, and then concentrated and purified by a silica
gel column chromatography (1:2 (v/v) petroleum ether / EtOAc) to afford 1-(hydroxymethyl)-cyclopropanol
as colorless oil (209 mg, 99 %).
1H NMR (400MHz, CDCl
3): δ 0.56 (t, J=5.6Hz, 2H), 0.82 (t, J=6Hz, 2H), 3.62 (s, 2H).
Step 4) (1-(methylsulfonyloxy)cyclopropyl)methyl methanesulfonate
[0184] To a mixture of 1-(hydroxymethyl)cyclopropanol (100 mg, 1.14 mmol) and TEA (202 mg,
1.82 mmol,
Shantou Xilong chemical factory) in 20 mL of dry CH
2Cl
2 under N
2, was added MsCl (156 mg, 1.32 mmol,
Shanghai Haiqu chemical Ltd.) dropwise via a syringe at -10°C. After stirring for 4 hrs at
-10 °C, the mixture was washed with icewater and extracted with CH
2Cl
2 (30 mL×3). The combined organic phases were dried over Na
2SO
4 and concentrated
in vacuo to give the desired compound as pale yellow oil (139 mg, 50%).
Step 5) N-(3-fluoro-4-(7-((1-cyclopropyl methanesulfonate-1-yl)methoxyl)-quinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
[0185]

[0186] To a mixture of (1-(methylsulfonyloxy)cyclopropyl)methyl methanesulfonate (122 mg,
0.5 mmol) and N-(4-(7-hydroxyquinolin-4-yloxy)-3-fluorophenyl)-2,5-dihydro-2,3-dimethyl-5-oxo-1-phenyl-1H-pyrazole-4-carboxamide
(306 mg, 0.57 mmol) in 3 mL of DMA under N
2 was added Cs
2CO
3 (926 mg, 2.84 mmol, Aladdin) at rt. The mixture was stirred at rt overnight, and
then was concentrated
in vacuo. The residue was purified by a silica gel column chromatography (5:1 (v/v) CH
2Cl
2 / EtOAc) to give the title compound as a white solid (200 mg, 55 %).
MS (ESI, pos. ion) m/z: 633.1 (M+1); LC-MS Rt: 4.178 min;
1H NMR (400MHz, CDCl
3): δ 1.09 (t, J=7.2Hz, 2H), 1.54 (t, J=6.8Hz, 2H), 2.80 (s, 3H), 3.07(s, 3H), 3.38
(s, 3H), 4.45 (s, 2H), 6.43 (d, J=4.2Hz, 2H), 7.17 (t, J=8.8Hz, 1H), 7.27 - 7.32 (m,
2H), 7.36 - 7.40 (dd, J=0.2Hz, 3H), 7.49 (d, J=7.2Hz, 1H), 7.57 (t, J=8Hz, 2H), 7.90
- 7.94 (dd, J=2.4Hz, 1H), 8.31 (d, J=4.2Hz, 1H), 8.60 (d, J=4.2Hz, 1H).
Example 6
N-(4-(7-(4-oxaspiro[2.4]heptane-6-yloxy)-6-methoxyl-quinolin4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0187]

Step 1) 4-(tetrahydro-2H-pyran-2-yloxy)-dihydrofuran-2(3H)-one
[0188] To a mixture of 4-hydroxy-dihydrofuran-2(3H)-one (10 g, 0.1 mol, Alfa) and dihydropyran
(12.5 g, 0.15 mol, Alfa) in 250 mL of dry CH
2Cl
2 was added PPTS (2.5 g 0.01 mol), and the reaction mixture was strred at rt overnight.
The reaction mixture was washed with brine and extracted with CH
2Cl
2 (100 mL×3), and the combined organic phases were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (3:1 (v/v) EtOAc /
n-Hexane) to give the title compound as colorless oil (15.6 g, 68%).
1H NMR (400MHz, CDCl
3): δ 1.63 - 1.84 (m, 6H), 2.54 - 2.79 (m, 2H), 3.52 - 3.55 (dd, J=12Hz, 1H), 3.79
- 3.86 (m, 1H), 4.31 - 4.47 (m, 2H), 4.57 - 4.59 (t, J=4Hz, 2H).
Step2) 1-(3-hydroxy-2-(tetrahydro-2H-pyran-2-yloxy)propyl)cyclopropanol
[0189] To a solution of 4-(tetrahydro-2H-pyran-2-yloxy)-dihydrofuran-2(3H)-one (2.23 g,
12 mmol) and Ti(O
i-Pr)
4 (0.68 g, 2.4 mmol, Aldrich) in 40 mL of dry THF at 15 °C under N
2 was added EtMgBr (30 mmol, 10 mL, 3M ether solution, Aldrich) dropwise via a syringe
pump over 2 hrs. The temperature of the reaction was always kept below 20 °C. After
stirring for 2 hrs, the reaction mixture was quenched with 30 mL of saturated NH
4Cl aqueous solution, and was extracted with ethyl acetate (50 mL×3). The combined
organic phases were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (1:1 (v/v) EtOAc /
n-hexane) to afford 1-(3-hydroxy-2-(tetrahydro-2H-pyran-2-yloxy)propyl)cyclopropanol
as yellow oil (1.92 g, 73 %).
2
1H NMR (400MHz, CDCl
3): δ 0.40 - 0.53 (m, 2H), 0.71 - 0.83 (m, 2H), 1.53 - 1.67 (m, 5H), 1.81 - 1.96 (m,
3H), 3.49 - 3.72 (m, 3H), 3.98 - 4.11 (m, 2H), 4.64 - 4.73 (m, 1H).
Step3) 3-(1-hydroxycyclopropyl)-2-(tetrahydro-2H-pyran-2-yloxy)propyl methanesulfonate
[0190] To a mixture of 1-(3-hydroxy-2-(tetrahydro-2H-pyran-2-yloxy)propyl) cyclopropanol
(1.0 g, 4.63 mmol) and triethylamine (1 mL, 7.4 mmol,
Shantou Xilong chemical factory) in 30 mL of CH
2Cl
2 at 0 °C was added methanesulfonyl chloride (0.64 g, 5.6 mmol,
Shanghai Haiqu chemical Ltd.) via a syringe. The reaction mixture was stirred at 0 °C for
1 hr and then quenched with 5 mL of ice-water. The resulted mixture was extracted
with CH
2Cl
2 (50 mL×3). The combined organic phases were dried over Na
2SO
4 and concentrated
in vacuo to furnish 3-(1-hydroxycyclopropyl)-2-(tetrahydro-2H-pyran-2-yloxy)propyl methanesulfonate
as yellow oil (used in the next step immediately without further purification).
Step4) 6-(tetrahydro-2H-pyran-2-yloxy)-4-oxaspiro[2.4]heptane
[0191] A mixture of 3-(1-hydroxycyclopropyl)-2-(tetrahydro-2H-pyran-2-yloxy)propyl methanesulfonate
(1.3 g, 4.63 mmol) and NaH (0.15 g, 6 mmol, Aldrich) in 20 mL of THF was stirred at
rt for 4 hrs. The reaction mixture was quenched with 5 mL of methanol. The mixture
was diluted with 10 mL of water and extracted with ethyl acetate (30 mL×3). The combined
organic phases were dried over Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (1:10 (v/v) EtOAc
/ petrolum ether) to give the title compound as colorless oil (380 mg, 42 %).
1H NMR (400MHz, CDCl
3): δ 0.45 - 0.63 (dd, J=4.8Hz, 2H), 0.81 - 0.93 (dd, J=4.8Hz, 2H), 1.56 - 2.29 (m,
8H), 3.54 (s, 1H), 3.87 - 4.03 (m, 3H), 4.60 - 4.66 (m, 2H).
Step5) 6-hydroxy-4-oxaspiro[2.4]heptane
[0192] A mixture of 6-(tetrahydro-2H-pyran-2-yloxy)-4-oxaspiro[2.4]heptane (1.03 g, 5.2
mmol) and PPTS (0.26 g, 1.0 mmol, Aldrich) in methanol (40 ml) was stirred at 40°C
for 5 hrs. The reaction mixture was concentrated
in vacuo, and the residue was purified by a silica gel column chromatography (1:5 (v/v) EtOAc
/ petroleum ether) to afford 6-hydroxy-4-oxaspiro[2.4]heptane as colorless oil (570
mg, 97 %).
1H NMR (400MHz, CDCl
3): δ 0.47 - 0.65 (m, 2H), 0.81 - 0.96 (m, 2H), 1.89 - 2.35 (m, 2H), 3.80 - 3.96 (m,
2H), 4.59 (s, 1H)
Step 6) (4-oxaspiro[2.4]heptane-6-yl)methanesulfonate
[0193] To a mixture of 6-hydroxy-4-oxaspiro[2.4]heptane (100 mg, 0.88 mmol) and triethylamine
(150 mg, 1.5 mmol,
Shantou Xilong chemical factory) in 5 mL of dichloromethane at 0 °C was added methanesulfonyl
chloride (130 mg, 1 mmol,
Shanghai Haiqu chemical Ltd.) via a syringe. The reaction mixture was stirred at 0 °C for
1 hr and was quenched with 5 mL of ice-water. The resulted mixture was extracted with
CH
2Cl
2 (20 mL×3). The combined organic phases were dried over Na
2SO
4 and concentrated in
vacuo to give the title compound as yellow oil (168 mg, 100 %).
Step7) N-(4-(7-(4-oxaspiro[2.4]heptane-6-yloxy)-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0194]

[0195] To a mixture of (4-oxaspiro[2.4]heptane-6-yl)methanesulfonate (168 mg, 0.877 mmol)
and N-(4-(7-hydroxy-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
(300 mg, 0.584 mmol) in 5 mL of N,N-dimethylacetamide was added cesium carbonate (893
mg, 2.74 mmol, Aladdin). After stirring at rt for 4 hrs, the reaction was warmed to
40°C and stirred for 16 hrs. The reaction mixture was concentrated
in vacuo and chromatographed with a silica gel column (5:1 (v/v) EtOAc / n-hexane) to afford
the title compound as a white solid (65 mg, 18%).
MS (ESI, pos. ion) m/z: 611.1 [M+1]; LC-MS Rt: 4.10 min;
1H NMR (400MHz, CDCl
3): δ 0.56 - 0.71 (m, 2H), 0.81 -1.02 (m, 2H), 2.33 (m, 1H), 2.55 (m, 1H), 2.81 (s,
3H), 3.38 (s, 3H), 4.03 (s, 3H), 4.21 (m, 2H), 5.24 (t, J=4Hz, 1H), 6.43 (d, J=4Hz,
1H), 7.15 - 7.60 (m, 9H), 7.90 - 7.94 (m, 1H), 8.48 (d, J=4Hz, 1H), 10.89 (s, 1H).
Example 7
N-(4-(7-(4-oxaspiro[2,4]heptane-6-yloxyl)quinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0196]

[0197] The title compound was prepared according to the procedure described in Example 6
by using (4-oxaspiro[2.4]heptane-6-yl)methanesulfonate (220 mg, 1.14 mmol), N-(4-(7-hydroxyquinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
(300 mg, 0.62 mmol), and cesium carbonate (450 mg, 2.4 mmol, Aladdin) in DMA (6 mL).
The title compound was purified by a silica gel column chromatography (5:1 (v/v) EtOAc
/ n-hexane) and was obtained as a white solid (68 mg, 19 %).
MS (ESI, pos. ion) m/z: 581.1 [M+1]; LC-MS Rt: 4.255 min;
1H NMR (400MHz, CDCl
3): δ 0.54 - 0.72 (m, 2H), 0.88 - 1.07 (m, 2H), 2.29 (m, 1H), 2.57 (m, 1H), 2.84 (s,
3H), 3.42 (s, 3H), 4.22 (m, 2H), 5.26 (m, 1H), 6.46 (d, J=4Hz, 1H), 7.18 - 7.63 (m,
9H), 7.96 (m, 1H), 8.33 (d, J=8Hz, 1H), 8.62 (d, J=4Hz, 1H), 10.92 (s, 1H).
Example 8
N-(5-(7-(4-oxaspiro[2.4]heptane-6-yloxy)quinolin-4-yloxy)pyridin-2-yl)-2.3-dihydro-1.5-dimethyl-3
-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0198]

[0199] The title compound was prepared according to the procedure described in Example 6
by using (4-oxaspiro[2.4]heptane-6-yl)methanesulfonate (220 mg, 1.14 mmol), N-(5-(7-hydroxyquinolin-4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
(300 mg, 0.64 mmol), and cesium carbonate (450 mg, 2.4 mmol, Aladdin) in DMA (6 mL).
The title compound was purified with a silica gel column chromatography (EtOAc) to
give a white solid (140 mg, 39 %).
MS (ESI, pos. ion) m/z: 564.1 [M+1]; LC-MS Rt: 4.007 min;
1H NMR (400MHz, CDCl
3): δ 0.59 (m, 2H), 0.91 (m, 2H), 2.25 (d, J=14Hz, 1H), 2.53 (m, 1H), 2.80 (s,3H),
3.37 (s, 3H), 4.18 (m, 2H), 5.22 (t, J=4Hz, 1H), 6.44 (d, J=5Hz, 1H), 7.24 - 7.56
(m, 9H), 8.25 (m, 1H), 8.38 (d, J=9Hz, 1H), 8.60 (d, J=3Hz, 1H), 11.26 (s, 1H).
Reference Example 9
N-(3-fluoro-4-(7-(3-(1-hydroxycyclopropyl)propoxy)quinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
[0200]

Step1) 1-(3-hydroxypropyl)cyclopropanol
[0201] To a mixture of dihydrofuran-2(3H)-one (2.0 g, 23 mmol, Alfa) and Ti(Oi-Pr)
4 (1.32 g, 4.6 mmol, Aldrich) in 80 mL of dry THF at 15 °C under N
2 was added EtMgBr (60 mmol, 20 mL, 3M in ether solution, Aldrich) via a syringe pump
over 3 hrs. The temperature was always kept below 20°C. After stirring for additional
3 hrs, the reaction mixture was quenched with 60 mL of saturated NH
4Cl aqueous solution, and was extracted with ethyl acetate (50 mL×3). The combined
organic phases were dried over Na
2SO
4 and concentrated
in vacuo. The orange oil residue was purified by a silica gel column chromatography (1:1 (v/v)
EtOAc / n-Hexane) to afford 1-(3-hydroxypropyl) cyclopropanol as yellow oil (2.5 g,
93 %).
Step2) 3-(1-hydroxycyclopropyl)propyl methanesulfonate
[0202] A mixture of 1-(3-hydroxypropyl)cyclopropanol (140 mg, 1.2 mmol) and triethylamine
(0.3 mL, 2.1mmol,
Shantou Xilong chemical factory) in 8mL of dichloromethane was stirred at 0 °C for 10 min.
To the mixture was added methanesulfonyl chloride (180 mg, 1.6 mmol,
Shanghai Haiqu chemical Ltd.) via a syringe. The reaction mixture was stirred at 0 °C for
1 hr and then quenched with 2 mL of ice-water. The resulted mixture was extracted
with dichloromethane (10 mL×3). The combined organic phases were dried over Na
2SO
4 and concentrated
in vacuo to give 3-(1-hydroxycyclopropyl) propyl methanesulfonate as yellow oil.
Step3) N-(3-fluoro-4-(7-(3-(1-hydroxycyclopropyl)propoxy)quinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
[0203]

[0204] To a mixture of 3-(1-hydroxycyclopropyl)propyl methanesulfonate (240 mg, 1.2 mmol)
and N-(4-(7-hydroxyquinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
(300 mg, 0.62 mmol) in 5 mL of N,N-dimethylacetamide was added cesium carbonate (470
mg, 2.4 mmol, Aladdin). After stirring at rt for 12 hrs, the reaction mixture was
warmed to 40 °C and stirred for additional 6 hrs. The reaction mixture was diluted
with 20 mL of water and extracted with ethyl acetate (40 mL×3). The combined organic
phases were dried over Na
2SO
4, concentrated
in vacuo and chromatographed with a silica gel column (5:1 (v/v) EtOAc / n-Hexane) to provide
the title compound as a white solid (68 mg, 19 % ).
MS (ESI, pos. ion) m/z: 583.1 [M+1]; LC-MS Rt: 4.129 min;
1H NMR (400MHz, CDCl
3): δ 0.51 (m, 2H), 0.79 (m, 2H), 1.81 (t, J=8Hz, 2H), 2.15 (m, 2H), 2.81 (s, 3H),
3.38 (s, 3H), 4.24 (t, J=8Hz, 2H), 6.41 (d, J=4Hz, 1H), 7.15 - 7.59 (m, 9H), 7.91
(m, 1H), 8.27 (d, J=8Hz, 1H), 8.58 (d, J=4Hz, 1H), 10.87 (s, 1H).
[0205] N-(3-fluoro-4-(7-(3-(1-cyclopropyl-methanesulfonate-1-yl)propoxy)-quinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
was also isolated from the above reaction:

MS (ESI, pos. ion) m/z: 661.1 [M+1]; LC-MS Rt: 4.272 min;
1H NMR (400MHz, CDCl
3): δ 0.787 (m, 2H), 1.29 (m, 2H), 2.11 (m, 4H), 2.80 (s, 3H), 3.01 (s, 3H), 3.38 (s,
3H), 4.22 (t, J=6Hz, 2H), 6.41 (d, J=5Hz, 1H), 7.14 - 7.59 (m, 9H), 7.91 (m, 1H),
8.27 (d, J=9Hz, 1H), 8.58 (d, J=5Hz, 1H), 10.88 (s, 1H).
Reference Example 10
N-(5-(7-(3-(1-hydroxycyclopropyl)propoxy)quinolin-4-yloxy)pyridin-2-yl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
[0206]

[0207] The title compound was prepared according to the procedure described in Example 9
by using N-(5-(7-hydroxyquinolin-4-yloxy)pyridin-2-yl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
(277 mg, 0.593 mmol), Cs
2CO
3 (560 mg, 1.724 mmol, Aladdin), and 3-(1-hydroxycyclopropyl)propyl methanesulfonate
(334 mg, 1.724 mmol) in DMA (10 mL). The title compound was purified by a silica gel
column chromatography (67:30:1:2 (v/v/v/v) EtOAc / CH
2Cl
2 / CH
3OH / Et
3N) to afford the title compound as a white solid (210 mg, 62.6 %).
MS (ESI, pos. ion) m/z: 566 [M+1]; LC-MS Rt: 3.846 min;
1H NMR (400MHz, CDCl
3): δ 0.49 - 052 (t, J=6 Hz, 2H), 0.78 - 0.81 (t, J=6 Hz, 2H), 1.26 (s, 2H), 1.79 -
1.83 (t, J=7.2 Hz, 2H), 2.13 - 2.16 (t, J=7.2 Hz, 2H), 2.81 (s, 3H), 3.38 (s, 3H),
4.23 - 4.26 (t, J=6 Hz, 2H), 6.42 - 6.44 (d, J=5.2 Hz, 1H), 7.20 - 7.23 (q, J
1=9.2 Hz, J
2=2.4 Hz, 1H), 7.37 - 7.39 (d, J=7.6Hz, 1H), 7.42 (s, 1H), 7.44 - 7.57 (m, 4H), 8.22-8.25
(m, 2H), 8.37 - 8.39 (d, J=9.2 Hz, 1H), 8.59 - 8.60 (d, J=5.2 Hz, 1H), 11.26 (s, 1H).
Example 11
N-(5-(7-((4-oxaspiro[2.4]heptane-6-yl)aminopropoxy)quinolin-4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0208]

Step1) (4-oxaspiro[2.4]heptane-6-yl)methanesulfonate
[0209] To a solution of 6-hydroxy-4-oxaspiro[2.4]heptane (200 mg, 1.75 mmol) and Et
3N (530.25 mg, 5.25 mmol) in dry CH
2Cl
2 (8 mL) at -10°C was added MsCl (401.7 mg, 3.5 mmol) dropwise under N
2 atmosphere. After stirring for 2 hrs, the reaction was quenched with ice-water (3
mL), extracted with CH
2Cl
2 (2×10 mL). The combined organic phases were dried over Na
2SO
4, concentrated
in vacuo to give the title compound as pale yellow oil.
Step2) (4-oxaspiro[2.4]heptane-6-yl)aminopropanol
[0210] To a solution of (4-oxaspiro[2.4]heptane-6-yl)methanesulfonate (336 mg, 1.75 mmol)
in dry THF (3 mL) was added 3-aminopropan-1-ol (656.3 mg, 8.75 mmol, TCI). The reaction
was refluxed overnight. The mixture was concentrated
in vacuo to give a brown residue, which was chromatographed with a silica gel column (8:1
(v/v) EtOAc / MeOH) to give the title compound as pale yellow oil (280 mg, 93 %).
MS (ESI, pos. ion) m/z: 171.0 (M+1).
1H NMR (400MHz, CDCl
3): δ 0.45 (m, 1H), 0.54 (m, 1H), 0.88 (m, 2H), 1.75 (m, 2H), 1.83 (dd, J
1=4Hz, J
2=16.8Hz, 1H), 2.22 (dd, J
1=7.2Hz, J
2=20Hz, 1H), 2.40 (s, 2H), 3.58 (m, 1H), 3.72 (m, 1H), 3.83 (t, 2H), 3.96 (dd, J
1=14.8Hz, J
2=5.6Hz, 1H).
Step3) tert-butyl N-(4-oxaspiro[2.4]hetane-6-yl)hydroxypropylamino formate
[0211] To a solution of (4-oxaspiro[2.4]heptane-6-yl)aminopropanol (361.9 mg, 2.12 mmol)
and Et
3N (535.3 mg, 5.3 mmol) in CH
2Cl
2 (10 mL) at room temperature was added (Boc)
2O (692 mg, 3.17 mmol). The reaction was stirred overnight and was then quenched with
water (5 mL). The organic layer was separated and the water layer was extracted with
20 mL of EtOAc. The combined organic phases were dried over Na
2SO
4, concentrated
in vacuo to give the title compound as pale yellow oil (555.8 mg, 97 %).
MS (ESI, pos. ion) m/z: 272.0 (M+1);
1H NMR (400MHz, CDCl
3): δ 0.45 (m, 1H), 0.61 (m, 1H), 0.78 (m, 1H), 0.93 (m, 1H), 1.47 (s, 9H), 1.75 (m,
3H), 2.13 (t, 2H), 3.42 (s, 2H), 3.59 (d, J=5.2Hz, 2H), 3.76 (dd, J
1=5.6Hz, J
2=14.8Hz, 1H), 3.94 (dd, J
1=7.6Hz, J
2=16.4Hz, 1H), 4.71 (s, 1H).
Step4) (N-(4-oxaspiro[2.4]heptane-6-yl)-tert butoxycarbonylamino)propyl methanesulfonate
[0212] To a solution of tert-butyl N-(4-oxaspiro[2.4]heptane-6yl)hydroxypropylamino formate
(278 mg, 1.03 mmol) and Et
3N (260 mg, 2.58 mmol) in dry CH
2Cl
2 (10 mL) at -10°C was added MsCl (234.8 mg, 2.06 mmol) dropwise under N
2 atmosphere. After stirring for 2 hrs, the reaction was quenched with ice water (3
mL). The organic phase was separated and the water layer was extracted with 15 mL
of CH
2Cl
2. The combined organic phases were dried over Na
2SO
4, concentrated
in vacuo to give the title compound as pale yellow oil.
Step5) N-(5-(7-((N-(4-oxaspiro[2.4]heptane-6-yl)-tert butoxycarbonylamino)propoxy)quinolin-4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0213]

[0214] To a solution of N-(5-(7-hydroxyquinolin4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
(200.6 mg, 0.44 mmol) and cesium carbonate (684.6 mg, 2.1 mmol, Aladdin) in N,N-dimethylacetamide
(1 mL) was added (N-(4-oxaspiro[2.4]heptane-6-yl)-tert butoxycarbonylamino)propyl
methanesulfonate (0.63 mmol) in N,N-dimethylacetamide (5 mL). After stirring at 40°C
for 2 days, the reaction mixture was concentrated
in vacuo. The residue was chromatographed with a silica gel column (1:4 (v/v) n-hexane / EtOAc)
to give the title compound as a white solid ( 200 mg, 62.5 %).
MS (ESI, pos. ion) m/z: 721.2 (M+1); LC-MS Rt: 4.669 min;
1H NMR (400MHz, CDCl
3): δ 0.55 (m, 1H), 0.65 (m, 1H), 0.78 (m, 1H), 0.93 (m, 1H), 1.49 (s, 9H), 2.09 (m,
2H), 2.18 (m, 3H), 2.81 (s, 3H), 3.38 (s, 3H), 3.45 (m, 2H), 3.78 (dd, J
1=5.6Hz, J
2=14.8Hz, 1H), 3.95 (m, 1H), 4.16 (t, 2H), 6.43 (d, J=5.6Hz, 1H), 7.22 (dd, J
1=2.4Hz, J
2=11.6Hz, 1H), 7.38 (m, 3H), 7.51(m, 4H), 8.23 (d, J=4.4Hz, 1H), 8.24 (d, J=2Hz, 1H),
8.38 (d, J=9.2Hz, 1H), 8.60 (d, J=5.2Hz, 1H), 11.26 (s, 1H).
Step6) N-(5-(7-((4-oxaspiro[2.4]heptane-6-yl)aminopropoxy)quinolin-4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0215]

[0216] To a solution of N-(5-(7-((N-(4-oxaspiro[2.4]heptane-6-yl)-tert butoxycarbonylamino)propoxy)quinolin-4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
(50 mg, 0.069 mmol) in dry THF (2 mL) was added 2 M HCl/THF (8 mmol). After stirring
at room temperature for 4 hrs, 10 mL of saturated NaHCO
3 aqueous solution was added to quench the reaction. The mixture was extracted with
EtOAc (15 mL×2). The combined organic phases were dried over Na
2SO
4, concentrated
in vacuo. The crude product was chromatographed with a silica gel column (5:1 (v/v) EtOAc /
MeOH) to give the title compound as a white solid (30 mg, 69 %).
MS (ESI, pos. ion) m/z: 621.2 (M+1); LC-MS Rt: 3.192 min;
1H NMR (400MHz, CDCl
3): δ 0.48 (m, 1H), 0.57 (m, 1H), 0.81 (m, 1H), 0.89 (m, 1H), 1.94 (dd, J
1=4Hz, J
2=12Hz, 1H), 2.12 (m, 2H), 2.24 (dd, J
1=7.2Hz, J
2=20Hz, 1H), 2.81 (s, 3H), 2.91 (t, 2H), 3.38 (s, 3H), 3.63 (d, J=6.4Hz, 1H), 3.75
(dd, J
1=3.6Hz, J
2=12.4Hz, 1H), 4.00 (dd, J
1=6.0Hz, J
2=14.8Hz, 1H), 4.24 (t, 2H), 6.43 (d, J=5.2Hz, 1H), 7.22 (dd, J=2.4Hz, J=11.6Hz, 1H),
7.38 (m, 3H), 7.51 (m, 4H), 8.23 (d, J=2.8Hz, 1H), 8.24 (d, J=3.6Hz, 1H), 8.38 (d,
J=8.8Hz, 1H), 8.60 (d, J=5.2Hz, 1H), 11.26 (s, 1H).
Example 12
N-(5-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propoxy)quinolin-4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0217]

Step1) ethyl 1-acetylcyclopropanecarboxylate
[0218] To a solution of ethyl 3-oxobutanoate (26 g, 200 mmol) in acetone (500 mL) was added
potassium carbonate (82.8 g, 600 mmol) followed by 1,2-dibromoethane (45.12 g, 240
mmol). The reaction was refluxed for 24 hrs, then the reaction mixture was filtered.
The filtrate was concentrated
in vacuo, and the residue was purified by a silica gel column chromatography (1:50(v/v)EtOAc/n-hexane)
to afford the title compound as colorless oil (18.7 g, 60 %).
MS (ESI, pos. ion) m/z: 157 (M+1);
1H NMR (400MHz, CDCl
3): δ 1.25 - 1.29 (t, J=7.2 Hz, 3H), 1.45 (s, 4H), 2.45 (s, 3H), 4.18 - 4.20 (q, 2H).
Step2) ethyl 1-(2-bromoacetyl)cyclopropanecarboxylate
[0219] To a 100 mL of round-bottomed flask was added ethyl 1-acetylcyclo-propanecarboxylate
(15.6 g, 100 mmol) and NBS solid (21.36 g, 120 mmol), followed by p-toluene sulfonic
acid (1.9 g, 10 mmol). After stirring at rt for 8 hrs, the reaction mixture was extracted
with diethyl ether (200 mL) and washed with 80 mL of water. The organic phase was
then dried over anhydrous Na
2SO
4 and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (1:30(v/v)EtOAc/n-hexane)
to give the title compound as colorless oil (16.68 g, 71 %).
MS (ESI, pos. ion) m/z: 235,237 (M+1);
1H NMR (400MHz, CDCl
3): δ 1.27 (t, J=7.2 Hz, 3H), 1.59 -1.64 (m, 4H), 4.19 - 4.24 (q, J
1=14.4 Hz, J
2=7.2 Hz, 2H), 4.49 (s, 2H).
Step3) 5-((R)-α-methylbenzyl)-4,7-dioxo-5-azaspiro[2.4]heptane
[0220] To a solution of ethyl 1-(2-bromoacetyl)cyclopropanecarboxylate (4.7g, 20 mmol) in
THF (60 mL) was added (R)-α-methylbenzylamine (2.9 g, 24 mmol) and Et
3N (4.04 g, 40 mmol). After stirring at rt for 3 days, the reaction mixture was concentrated
in vacuo, and the residue was extracted with ethyl acetate (50 mL×2) and washed with water
(30 mL). The combined organic phases were dried over anhydrous Na
2SO
4, filtered and the filtrate was concentrated
in vacuo. The residue was purified by a silica gel column chromatography (EtOAc) to afford
the title compound as a light yellow solid (3.66 g, 80 %).
MS (ESI, pos. ion) m/z: 230 (M+1);
1H NMR (400MHz, CDCl
3): δ 1.58 -1.60 (m, 4H), 1.62 - 1.63 (d, J=5.6 Hz, 3H), 3.49 - 3.53 (d, J=17.6 Hz,
1H), 3.83 - 3.88 (d, J=17.6 Hz, 1H), 5.80 - 5.82 (q, 1H), 7.26 - 7.39 (m, 5H).
Step4) 5-((R)-α-methylbenzyl)-7-hydroxy-5-azaspiro[2.4]heptane
[0221] To a suspension of LiAlH
4 (0.995 g, 26.2 mmol) in THF (40 mL) was added a solution of 5-((R)-α-methylbenzyl)-4,7-dioxo-5-azaspiro[2.4]heptane
(3.0 g, 13.1 mmol) in THF (10 mL) at 0 °C. The reaction mixture was stirred at 0 °C
for 2 hrs, then warmed up to 50 °C and continued to stir for 6 hrs. The reaction mixture
was then cooled to 0 °C and ethyl acetate (10 mL) and water (10 mL) were added. The
suspension was filtered and the filtrate was concentrated
in vacuo. The residue was purified by a silica gel column chromatography (1: 3 (v/v) 2-butanol
/ n-hexane) to afford the title compound as colorless oil (2.4 g, 85 %).
MS (ESI, pos. ion) m/z: 218 (M+1);
Step5) 7-hydroxy-5-azaspiro[2.4]heptane
[0222] To a solution of 5-((R)-α-methylbenzyl)-7-hydroxy-5-azaspiro[2.4]heptane (2.4 g,
11.1 mmol) in ethanol (30 mL) was added the catalytic amount of Pd/C. The suspension
was then stirred under H
2 for 3 hrs. The suspension was filtered and the filtrate was concentrated
in vacuo to afford the desired compound as light orange oil (1.23 g, 98 %). The crude product
was used for the next step without further purification.
MS (ESI, pos. ion) m/z: 114 (M+1);
Step6) 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propanol
[0223] To a solution of 7-hydroxy-5-azaspiro[2.4]heptane (1.23 g, 11.0 mmol) in THF (40
mL) was added 3-bromopropanol (2.3 g, 16.65 mmol) and Et
3N (2.24 g, 22.2 mmol). The reaction mixture was stirred at rt for 12 hrs and then
concentrated
in vacuo. The residue was purified by a silica gel column chromatography (100: 50: 2(v/vlv)EtOAc
/CH
3OH / Et
3N) to afford the desired compound as orange oil (1.14 g, 60 %).
MS (ESI, pos. ion) m/z: 172 (M+1); LC-MS Rt: 0.178 min;
1H NMR (400MHz, CDCl
3): δ 0.59 (m, 1H), 0.62 (m, 1H), 0.70 - 0.72 (m, 1H), 0.87 - 0.92 (m, H), 1.68 - 1.74
(m, 2H), 2.39 - 2.41 (d, J=9.2Hz, 1 H), 2.70 - 2.74 (m, 2H), 2.84 - 2.87 (m, 2H),
2.88 - 2.92 (dd, J
1=10.4Hz, J
2=4.8Hz, 1H), 3.73 - 3.75 (m, 1H), 3.77 - 3.80 (t, J=5.2 Hz, 2H);
Step7) 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl methanesulfonate
[0224] To a solution of 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propanol (1.14 g, 6.67
mmol) and Et
3N (1.35 g, 13.34 mmol) in CH
2Cl
2 (20 mL) was added methanesulfonyl chloride (1.15 g, 10 mmol) dropwise at 0 °C. The
reaction was then stirred at 0 °C for 3 hrs. The reaction mixture was washed with
cold water (10 mL) and the organic layer was dried over anhydrous Na
2SO
4, filtered and concentrated
in vacuo to afford the title compound as orange oil. The crude product was used for the next
step without further purification.
Step 8) N-(5-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propoxy)quinolin-4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0225]

[0226] To a solution of N-(5-(7-hydroxyquinolin-4-yloxy)pyridin-2-yl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
(300 mg, 0.642 mmol) in DMA (3 mL) was added 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl
methanesulfonate (240 mg, 0.963 mmol) and Cs
2CO
3 (417 mg, 1.284 mmol). The reaction was stirred at rt for 24 hrs. The solvent was
removed and the residue was partioned between saturated NaHCO
3 aqueous solution (15 mL) and CHCl
3 (30 mL). The organic layer was separated, dried over anhydrous Na
2SO
4, filtered and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (100: 15: 1(v/v/v)EtOAc
/CH
3OH / Et
3N) to afford the title compound as a white solid (259 mg, 65 %).
MS (ESI, pos. ion) m/z: 621(M+1); LC-MS Rt: 3.209 min;
1H NMR (400MHz, CDCl
3): δ 0.63 (m, 1H), 0.67 (m, 1H), 0.76 - 0.79 (m, 1H), 0.96 - 0.99 (m, 1H), 2.11 -
2.14 (m, 2H), 2.47 - 2.50 (d, J=8.4 Hz, 1H), 2.80 (s, 3H), 3.00 - 3.03 (d, J=9.6 Hz,
1H), 3.06 - 3.08 (d, J=10.4 Hz, 1H), 3.37 (s, 5H), 3.76 - 3.77 (d, J=3.6 Hz, 1H),
4.23 - 4.24 (m, 2H), 6.42 - 6.43 (d, J=5.2 Hz, 1H), 7.20 - 7.23 (d, J=8.8 Hz, 1H),
7.36 - 7.38 (d, J=7.6 Hz, 2H), 7.47 - 7.49 (m, 5H), 7.53 - 7.57 (m, 2H), 8.22 - 8.24
(d, J=8.4 Hz, 2H), 8.37 - 8.39 (d, J=9.2 Hz, 1H), 8.58 - 8.59 (d, J=4.8 Hz, 1H), 11.25
(s, 1H)
Example 13
N-(4-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propoxy)quinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
[0227]

[0228] To a solution of N-(3-fluoro-4-(7-hydroxyquinolin-4-yloxy)phenyl)-N-phenylcyclopropane-1,1-dicarboxamide
(240 mg, 0.525 mmol) in DMA (3 mL) was added 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl
methanesulfonate (261 mg, 1.05 mmol) and Cs
2CO
3 (512 mg, 1.575 mmol). The reaction was then stirred at rt for 24 hrs. The solvent
was removed and the residue was partioned between saturated NaHCO
3 (10 mL) aqueous solution and CHCl
3 (30 mL). The organic layer was separated, dried over anhydrous Na
2SO
4, filtered and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (100: 15: 1(vlvlv)EtOAc
/ CH
3OH / Et
3N) to afford the desired compound as a white solid (170 mg , 53 %).
MS (ESI, pos. ion) m/z: 611 (M+1);
1H NMR (400MHz, CDCl
3): 8 0.59 - 0.60 (m, 1H), 0.62 - 0.65 (m, 1H), 0.73 - 0.78 (m, 1H), 0.92 - 0.96 (m,
1H), 1.58 - 1.62 (q, J
1=8.0 Hz, J
2=4.4 Hz, 2H), 1.81 - 1.94 (m, 2H), 2.05 - 2.88 (m, 2H), 2.38 - 2.40 (d, J=8.4 Hz,
1H), 2.68 - 2.73 (m, 2H), 2.81 - 2.85 (dd, J
1=4.8 Hz, J
2=4.4 Hz, 1H), 2.90 - 2.92 (d, J=8.8 Hz, 1H), 2.96 - 2.98 (d, J=9.2 Hz, 1H), 3.74 -
3.73 (d, J=3.6 Hz, 1H), 4.21 - 4.26 (m, 2H), 6.36 - 6.38 (d, J=5.2 Hz, 1H), 7.18 -
7.24 (m, 2H), 7.26-7.29 (d, J=10.4 Hz, 1H), 7.36 - 7.40 (t, J=8 Hz, 2H), 7.48 - 7.51
(m, 2H), 7.75 - 7.79 (dd, J
1=2 Hz, J
2=2.4 Hz, 1H), 8.05 (s, 1H), 8.24 - 8.26 (d, J=9.2 Hz, 1H), 8.56 - 8.58 (d, J=5.2 Hz,
1H), 10.19 (s, 1H).
Example 14
N-(4-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propoxy)quinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0229]

[0230] To a solution of N-(3-fluoro-4-(7-hydroxyquinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
(200 mg, 0.413 mmol) in DMA (3 mL) was added 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl
methanesulfonate (154 mg, 0.619 mmol) and Cs
2CO
3 (268 mg, 0.826 mmol). The reaction was then stirred at rt for 40 hrs. The solvent
was removed and the residue was partioned between saturated NaHCO
3 aqueous solution (10 mL) and CHCl
3 (25 mL). The organic layer was dried over anhydrous Na
2SO
4, filtered and concentrated
in vacuo. The residue was purified by a silica gel column chromatography (100: 15: 1(v/v/v)EtOAc
/ CH
3OH / Et
3N) to afford a pale yellow solid (192 mg, 73 %).
MS (ESI, pos. ion) m/z: 638 (M+1); LC-MS Rt: 3.140 min;
1H NMR (400MHz, CDCl
3): δ 0.63 - 0.65 (m, 1H), 0.67 - 0.69 (m, 1H), 0.76 - 0.81 (m, 1H), 0.98 - 1.02 (m,
1H), 2.08 - 2.17 (m, 2H), 2.54 - 2.57 (d, J=9.2 Hz, 1H), 2.80 (s, 3H), 2.81 (m, 2H),
2.98 - 3.02 (dd, J
1=4.8 Hz, J
2=4.4 Hz, 1H), 3.08 - 3.10 (d, J=9.2 Hz, 1H), 3.12 - 3.14 (d, J=9.6 Hz, 1H), 3.38 (s,
3H), 3.79 - 3.80 (d, J=4.8 Hz, 1H), 4.21 - 4.25 (m, 2H), 6.40 - 6.42 (d, J=5.2 Hz,
1H), 7.14 - 7.17 (d, J=8.4 Hz, 1H), 7.19 - 7.22 (dd, J
1=9.6 Hz, J
2=2.4 Hz, 1H), 7.29 - 7.31 (d, J=4.8 Hz, 1H), 7.36 - 7.37 (d, J=6 Hz, 2H), 7.47 - 7.50
(m, 2H), 7.55 - 7.59 (q, J=7.6 Hz, 2H), 7.90 - 7.94 (dd, J
1-12.4 Hz, J
2=2.4 Hz, 1H), 8.25 - 8.28 (d, J=9.2 Hz, 1H), 8.57 - 8.58 (d, J=9.2 Hz, 1H), 10.883
(s, 1H).
Example 15
N-(4-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propoxy)-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0231]

[0232] To a solution of N-(3-fluoro-4-(7-hydroxy-6-methoxyquinolin-4-yloxy)phenyl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
(200 mg, 0.389 mmol) in DMA (2 mL) was added 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl
methanesulfonate (193 mg, 0.778 mmol) and Cs
2CO
3 (379 mg, 1.167 mmol). The reaction was then stirred at rt for 40 hrs. The solvent
was removed and the residue was partioned between saturated NaHCO
3 aqueous solution (10 mL) and CHCl
3 (30 mL). The organic layer was separated, dried over anhydrous Na
2SO
4, filtered and concentrated
in vacuo and the residue was purified by a silica gel column chromatography (100: 15: 1(v/v/v)EtOAc
/ CH
3OH / Et
3N) to afford the desired compound as a pale yellow solid (171 mg, 66 %).
MS (ESI, pos. ion) m/z: 668 (M+1); LC-MS Rt: 3.421 min;
1H NMR (400MHz, CDCl
3): δ 0.72 - 0.77 (m, 2H), 0.82 - 0.85 (m, 1H), 1.08 - 1.12 (m, 1H), 2.35 - 2.38 (m,
2H), 2.75 (m, 2H), 2.80 (s, 3H), 2.83 - 2.86 (d, J=6 Hz, 1H), 3.17 - 3.18 (m, 1H),
3.38 (s, 3H), 3.41 - 3.46 (t, J=10 Hz, 2H), 3.86 - 3.88 (d, J=4.8 Hz, 1H), 4.02 (s,
3H), 4.30 (m, 2H), 6.43 - 6.44 (d, J=5.2 Hz, 1H), 7.15 - 7.19 (t, J=8.8 Hz, 1H), 7.29
- 7.31 (d, J=8.8 Hz, 1H), 7.35 - 7.37 (d, J=7.2 Hz, 2H), 7.46 - 7.50 (m, 2H), 7.55
- 7.59 (m, 3H), 7.90 - 7.94 (dd, J
1=8.8 Hz, J
2=8.8 Hz, 1H), 8.45 - 8.47 (d, J=5.2 Hz, 1H), 10.89 (s, 1H).
Example 16
N-(5-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propoxy)quinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
[0233]

[0234] To a solution of N-(5-(7-hydroxyquinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
(110 mg, 0.25 mmol) in DMA (2 mL) was added 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl
methanesulfonate (125 mg, 0.50 mmol) and Cs
2CO
3 (243 mg, 0.75 mmol). The reaction was then stirred at rt for 24 hrs. The solvent
was removed and the residue was partioned between saturated NaHCO
3 aqueous solution (10 mL) and CHCl
3 (30 mL). The organic layer was separated, dried over anhydrous Na
2SO
4, filtered and the filtrate was concentrated
in vacuo. The residue was purified by a silica gel column chromatography (100: 15: 1(v/v/v)EtOAc
/ CH
3OH / Et
3N) to afford the desired compound as a pale yellow solid (110 mg, 75 %).
MS (ESI, pos. ion) m/z: 594 (M+1);
1H NMR (400MHz, CDCl
3): δ 0.55 (m, 1H), 0.62 (m, 1H), 0.77 (m, 1H), 0.92 - 0.96 (m, 1H), 1.66 - 1.69 (q,
J
1=7.2 Hz, J
2=8.4 Hz, J
3=4.4 Hz, J
4=5.6 Hz, 2H), 1.78 - 1.81 (q, J
1=7.2 Hz, J
2=8.4 Hz, J
3=4.4 Hz, J
4=5.6 Hz, 2H), 2.04 - 2.09 (m, 2H), 2.36 - 2.38 (d, J=8.8 Hz, 1H), 2.66 - 2.72 (m,
2H), 2.79 - 2.83 (dd, J
1=J
2=10 Hz, J
3=J
4=4.8 Hz, 1H), 2.87 - 2.89 (d, J=8.8 Hz, 1 H), 2.93 - 2.95 (d, J=9.6 Hz, 1H), 3.73
- 3.74 (d, J=4.4 Hz, 1H), 4.19 - 4.25 (m, 2H), 6.38 - 6.40 (d, J=5.2 Hz, 1H), 7.11
- 7.15 (t, J
1=8.8 Hz, J
2=7.2 Hz, 1H), 7.21 - 7.24 (dd, J
1=J
2=9.2 Hz, J
3=J
4=2.8 Hz, 1H), 7.31 - 7.35 (t, J
1=J
2=7.2 Hz, 2H), 7.50 - 7.51 (d, J=2.8 Hz, 1H), 7.55 - 7.58 (m, 3H), 8.18 - 8.21 (d,
J=9.2 Hz, 1H), 8.23 - 8.23 (d, J=2.4 Hz, 1H), 8.27 - 8.29 (d, J=9.2 Hz, 1H), 8.58
- 8.59 (d, J=5.2 Hz, 1H).
Example 17
N-(4-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propoxy-methoxyquinolin-4-yloxyl)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
[0235]

[0236] To a solution of N-(3-fluoro-4-(7-hydroxy-6-methoxyquinolin-4-yloxy)phenyl)-N-phenylcyclopropane-1,1-dicarboxamide
(260 mg, 0.534 mmol) in DMA (3 mL) was added 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl
methanesulfonate (266 mg, 1.068 mmol) and Cs
2CO
3 (520 mg, 1.602 mmol). The reaction was then stirred at rt for 2 days. The solvent
was removed and the residue was partioned between saturated NaHCO
3 aqueous solution (15 mL) and CHCl
3 (30 mL). The organic layer was dried over anhydrous Na
2SO
4, filtered and the filtrate was concentrated
in vacuo. The residue was purified by a silica gel column chromatography (100: 15: 1(v/v/v)EtOAc
/ CH
3OH / Et
3N) to afford the desired compound as a pale yellow solid (264 mg, 77 %).
MS (ESI, pos. ion) m/z: 641(M+1); LC-MS Rt: 3.439 min;
1H NMR (400MHz, CDCl
3): δ 0.61 (m, 2H), 0.75 (m, 1H), 0.96 (m, 1H), 1.59 - 1.62 (q, J
1=7.2 Hz, J
2=8 Hz, J
3=4.4 Hz, J
4=5.2 Hz, 2H), 1.81 - 1.84 (q, J
1=7.6 Hz, J
2=8.4 Hz, J
3=4.4 Hz, J
4=5.2 Hz, 2H), 2.07 - 2.15 (m, 2H), 2.36 - 2.38 (d, J=8.8 Hz, 1H), 2.64 - 2.73 (m,
2H), 2.76 - 2.80 (dd, J
1=9.6 Hz, J
2=9.2 Hz, J
3=4.4 Hz, J
4=4.8 Hz, 1H), 2.92 - 2.94 (d, J=8.8 Hz, 1H), 2.99 - 3.02 (d, J=10 Hz, 1H), 3.73 -
3.74 (d, J=3.6 Hz, 1H), 4.041 (s, 3H), 4.30 - 4.32 (m, 2H), 6.38 - 6.39 (d, J=5.2
Hz, 1H), 7.19 - 7.23 (t, J
1=8.8 Hz, J
2=8 Hz, 1H), 7.30 - 7.30 (d, J=6.4 Hz, 1H), 7.36 - 7.40 (t, J
1=8.4 Hz, J
2=7.6 Hz, 2H), 7.48 - 7.50 (d, J=9.6 Hz, 2H), 7.56 (s, 1H), 7.70 (s, 1H), 7.76 - 7.80
(dd, J
1=J
2=12 Hz, J
3=J
4=2.4 Hz, 1H), 8.15 (s, 1H), 8.45 - 8.46 (d, J=5.2 Hz, 1H), 10.24 (s, 1H).
Example 18
N-(4-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)proproxy)-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide
[0237]

[0238] To a solution of N-(3-fluoro-4-(7-hydroxy-6-methoxyquinolin-4-yloxy)phenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide
(240 mg, 0.475 mmol) in DMA (3 mL) was added 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl
methanesulfonate (236 mg, 0.95 mmol) and Cs
2CO
3 (463 mg, 1.425 mmol). The reaction was then stirred at rt for 2 days. The solvent
was removed and the residue was partioned between saturated NaHCO
3 aqueous solution (15 mL) and CHCl
3 (30 mL). The organic layer was separated, dried over anhydrous Na
2SO
4, filtered and the filtrate was concentrated
in vacuo. The residue was purified by a silica gel column chromatography (100: 15: 1(v/v/v)EtOAc
/ CH
3OH / Et
3N) to afford the desired compound as a white solid (250 mg, 80%).
MS (ESI, pos. ion) m/z: 659 (M+1);
1H NMR (400MHz, CDCl
3): δ 0.58 - 0.66 (m, 2H), 0.74 - 0.78 (m, 1H), 0.95 - 1.00 (m, 1H), 1.62 1.65 (q,
J
1=7.6 Hz, J
2=8.4 Hz, J
3=4.4 Hz, J
4=5.2 Hz, 2H), 1.79 - 1.82 (q, J
1=7.2 Hz, J
2=8.4 Hz, J
3=4.4 Hz, J
4=5.6 Hz, 2H), 2.05 - 2.16 (m, 2H), 2.39 - 2.42 (d, J=8.8 Hz, 1H), 2.68 - 2.77 (m,
2H), 2.80 - 2.83 (dd, J
1=J
2=10 Hz, J
3=J
4=4.8 Hz, 1H), 2.96 - 2.98 (d, J=8.8 Hz, 1H), 3.03 - 3.05 (d, J=10 Hz, 1H), 3.74 -
3.75 (d, J=3.6 Hz, 1H), 4.04 (s, 3H), 4.30 - 4.31 (m, 2H), 6.38 - 6.39 (d, J=5.6 Hz,
1H), 7.05 - 7.08 (d, J=6.4Hz, 2H), 7.19 - 7.23 (t, J
1=J
2=8.4 Hz, 1H), 7.27 - 7.29 (d, J=9.6 Hz, 1H), 7.41 - 7.47 (q, J
1=J
2=6.8 Hz, J
3=J
4=4.8 Hz, 1H), 7.56 (s, 1H), 7.69 (s, 1H), 7.75 - 7.78 (dd, J
1=J
2=12 Hz, J
3=J
4=2.4 Hz, 1H), 8.38 (s, 1H), 8.44 - 8.46 (d, J=5.6 Hz, 1H).
Example 19
N-(5-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propoxy)-6-methoxyquinolin-4-yloxy)pyridin-2-yl)-2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazole-4-carboxamide
[0239]

[0240] To a solution of N-(5-(7-hydroxy-6-methoxyquinolin-4-yloxy)pyridin-2-yl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
(200 mg, 0.402 mmol) in DMA (4 mL) was added 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl
methanesulfonate (150 mg, 0.603 mmol) and Cs
2CO
3 (261 mg, 0.804 mmol). The reaction was then stirred at rt for 24 hrs. The solvent
was removed and the residue was partioned between saturated NaHCO
3 aqueous solution (5 mL) and CHCl
3 (25 mL). The organic layer was separated, dried over anhydrous Na
2SO
4. filtered and the filtrate was concentrated
in vacuo. The residue was purified by a silica gel column chromatography (100: 15: 1 (v/v/v)EtOAc
/ CH
3OH / Et
3N) to afford the desired compound as a pale yellow solid (165 mg, 63 %).
MS (ESI, pos. ion) m/z: 651(M+1); LC-MS Rt: 3.296 min;
1H NMR (400MHz, CDCl
3): δ 0.78 (m, 1H), 0.79 (m, 1H), 0.86 (m, 1H), 0.90 (m, 1H), 1.10 (s, 3H), 1.37 (m,
2H), 1.40 (s, 2H), 1.43 (s, 2H), 2.80 (d, 3H), 3.14 (m, 2H), 3.38 (s, 3H), 4.02 (s,
3H), 4.29 (s, 1H), 6.46 (d, J=5.2 Hz, 1H), 7.36 - 7.39 (d, 2H), 7.46 - 7.57 (m, 6H),
8.24 (d, J=2.8 Hz, 1H), 8.38 (d, J=9.2 Hz, 1H), 8.49 (d, J=5.2 Hz, 1H), 11.28 (s,
1H).
Example 20
N-(5-(7-(3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propoxy)-6-methoxyquinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
[0241]

[0242] To a solution of N-(5-(7-hydroxy-6-methoxyquinolin-4-yloxy)pyridin-2-yl)-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazole-4-carboxamide
(300 mg, 0.640 mmol) in DMA (4 mL) was added 3-(7-hydroxy-5-azaspiro[2.4]heptane-5-yl)propyl
methanesulfonate (239 mg, 0.960 mmol) and Cs
2CO
3 (416 mg, 1.280 mmol). The reaction was then stirred at rt for 48 hrs. The solvent
was removed and the residue was partioned between saturated NaHCO
3 aqueous solution (5 mL) and CHCl
3 (25 mL). The organic layer was separated, dried over anhydrous Na
2SO
4, filtered and the filtrate was concentrated
in vacuo. The residue was purified by a silica gel column chromatography (100: 15: 1 (v/v/v)EtOAc
/ CH
3OH / Et
3N) to afford the desired compound as a pale yellow solid (240 mg, 60 %).
MS (ESI, pos. ion) m/z: 624 (M+1);
1H NMR (400MHz, CDCl
3): δ 0.71 (m, 2H), 0.85 (m, 2H), 1.25 (m, 2H), 1.42 (m, 2H), 1.69 (m, 2H), 1.79 (m,
2H), 2.23 (m, 2H), 3.12 (dd, 1H), 3.25 (m, 2H), 3.82 (d, 1H), 4.03 (s, 3H), 4.32 (m,
2H), 6.42 (d, J=5.2 Hz, 1H), 7.15 (t, J
1=8.8 Hz, J
2=7.2 Hz, 1H), 7.30 (dd, J
1=J
2=9.2 Hz, J
3=J
4=2.9 Hz, 1H), 7.37 (t, J
2=J
2=7.2 Hz, 2H), 7.52 (d, J=2.8 Hz. 1H), 7.56 (m, 4H), 8.30 (d, J=9.2 Hz, 1H), 8.49 -
8.23 (d, J=2.4 Hz, 1H), 9.41 (s, 1H).
Example 21
N-(4-(7-(4-oxaspiro[2.4]heptane-6-yloxy)quinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
[0243]

Step1) diethyl cyclopropane-1,1-dicarboxylate
[0244] To a solution of diethyl malonate (3.2 g, 20 mmol) and anhydrous potassium carbonate
powder (6.9 g, 50 mmol) in DMF (50.0 mL) was added 1,2-dibromoethane (4.136 g, 22
mmol). After stirring for 2 hrs, catalytic amount of TBAI (0.738 g, 2.0 mmol) was
added and the mixture was continued to stir at room temperature for 8 hrs. The reaction
mixture was filtered and the solid was washed with diethyl ether 3 times. The filtrate
was diluted with water (200 mL) and extracted with diethyl ether (75 mL×4). The combined
organic phases were washed with 70 mL of brine, dried over Na
2SO
4 and concentrated
in vacuo. The residue was chromatographed with a short alumina column (1: 10 (v/v) EtOAc /
n-hexane) to afford the desired compound as yellow oil (3.3 g, 88.7%).
1H NMR (400MHz, CDCl
3): δ 1.27 (m, J=6.8Hz, 6H), 1.42 (m, 4H), 4.18 (m, 4H).
Step2) 1-(ethoxycarbonyl)cyclopropanecarboxylic acid
[0245] To a solution of diethyl cyclopropane-1,1-dicarboxylate (4.77 g, 25.6 mmol) in ethanol
(40 mL) was added KOH (1.43 g, 25.6 mmol) in H
2O (8 mL), and the reaction mixture was stirred at room temperature overnight The ethanol
was removed under reduced pressure. The residue was neutralized with HCl (6 mL, 5
mol/L), then extracted with EtOAc (100 mL×3). The combined organic phases were dried
over Na
2SO
4, filtered and the filtrate was concentrated
in vacuo to give the title compound as a white solid (3.58 g, 88.4 %).
1H NMR (400MHz, CDCl
3): δ 1.27 (t, J=6.7Hz, 3H), 1.83 (m, 2H), 1.86 (m, 2H), 4.25 (m, 2H).
Step3) ethyl 1-(phenyl carbamoyl)cyclopropane carboxylate
[0246] To a solution of 1-(ethoxycarbonyl)cyclopropane carboxylic acid (7.4 g, 46.84 mmol)
in dry CH
2Cl
2 (70 mL) was added HATU (35.62 g, 93.67 mmol) at 0 °C. After stirring for 10 minutes,
a solution of the aniline (8.71 g, 93.67 mmol) and Et
3N (9.48 g, 93.67 mmol) in dry CH
2Cl
2 (30 mL) was then added and the reaction mixture was continued to stir at 40 °C for
24 hrs. The reaction mixture was quenched with water (30 mL) and extracted with CH
2Cl
2 (100 mL×3). The combined organic phases were dried over anhydrous Na
2SO
4, filtered and the filtrate was concentrated
in vacuo. The residue was chromatographed with a silica gel column (1: 5 (v/v) EtOAc / n-hexane)
to afford the title compound as a pale yellow solid (9.7 g, 89 %).
1H NMR (400MHz, CDCl
3): δ 1.27 (t, J=6.8Hz, 3H), 1.76 (m, 2H), 1.85 (m, 2H), 4.20 (m, 2H), 6.68 - 6.71
(m, 1H), 7.32 - 7.35 (m, 2H), 7.57 - 7.60 (m, 2H), 10.88 (s, 1H).
Step4) 1-(phenylcarbamoyl)cyclopropanecarboxylic acid
[0247] To a solution of ethyl 1-(phenol carbamoyl)cyclopropane carboxylate (13 g, 55.79
mmol) in ethanol / THF (1/1, 100 mL) was added KOH (4.69 g, 83.69 mmol) in H
2O (8 mL) and the mixture was stirred at room temperature overnight. The ethanol and
THF were removed under reduced pressure. The residue was neutralized with HCl (5 mol/L,
20 mL), and extracted with EtOAc (150 mL×3). The combined organic phases were dried
over Na
2SO
4, filtered and the filtrate was concentrated
in vacuo to afford the title compound as a white solid (10.1 g, 88.6 %).
1H NMR (400MHz, CDCl
3): δ 1.77 (m, 2H), 1.84 (m, 2H), 7.10 (m, 1H), 7.3 - 7.34 (m, 2H), 7.53 - 7.55 (m,
2H), 10.61 (s, 1H).
Step5) N-(4-(7-(benzyloxy)quinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
[0248] To a solution of 1-(phenylcarbamoyl)cyclopropanecarboxylic acid (1.14 g, 5.6 mmol)
in dry CH
2Cl
2 (8 mL) was added HATU (2.11 g, 5.6 mmol) at 0 °C. After stirring for 10 minutes,
a solution of the 4-(7-(benzyloxy)quinolin-4-yloxy)-3-fluorobenzenamine (1.0 g, 2.8
mmol) and Et
3N (0.7 g, 6.9 mmol) in dry CH
2Cl
2 (5 mL) was added. The reaction mixture was stirred at 40 °C for 24 hrs, quenched
with water (10 mL), and extracted with CH
2Cl
2 (30 mL×3). The combined organic phases were dried over anhydrous Na
2SO
4, filtered and the filtrate was concentrated
in vacuo. The residue was chromatographed with a silica gel column (1:1 (v/v) EtOAc / n-hexane)
to afford the title compound as a white solid (1.3 g, 85 %).
MS (ESI, pos. ion) m/z: 548 (M+1); LC-MS Rt: 4.595 min;
1H NMR (400MHz, CDCl
3): δ 1.60 (m, 2H), 1.83 (m, 2H), 5.25 (s, 2H), 6.45 (m, 1H), 7.28 - 7.29 (m, 1H),
7.16 - 7.24 (m, 2H), 7.34 - 7.57 (m, 10H), 7.78 - 7.81 (m, 1H), 7.99 (s, 1H), 8.30
(d, J=9.2Hz, 1H), 8.60 (d, J=6Hz, 1H), 10.29 (s, 1H).
Step6) N-(4-(7-hydroxyquinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
[0249] A solution of N-(4-(7-(benzyloxy)quinolin-4-yloxy)-3-fluorophenyl)-N-phenyl-cyclopropane-1,1-dicarboxamide
(0.7 g, 1.28 mmol) and Pd/C (0.8 g) in methanol (20 mL) under H
2 was stirred at room temperature for 1.5 hrs, then the reaction mixture was filtered
and washed with methanol (3×10 mL). The combined organic solvent was concentrated
in vacuo to give N-(5-(7-hydroxy-quinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
as a white solid (0.53 g, 90.6 %).
MS (ESI, pos. ion) m/z: 457 (M+1); LC-MS Rt: 3.936 min;
1H NMR (400MHz, MeOD): δ 1.66 (s, 1H), 6.81 (d, J=6.4Hz, 1H), 7.14 (t, J=7.6Hz, 1H),
7.33 (m, 3H), 7.41 - 7.48 (m, 3H), 7.55 (d, J=8Hz, 2H), 7.92 (d, J=12.8Hz, 1H), 8.49
(d, J=8.8Hz, 1H), 8.69 (d, J=6Hz, 1H).
Step7) N-(4-(7-(4-oxaspiro[2.4]heptane-6-yloxy)quinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
[0250]

[0251] To a mixture of (4-oxaspiro[2.4]heptane-6-yl)methanesulfonate (168 mg, 0.877 mmol,
from example 6) and N-(4-(7-hydroxyquinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
(300 mg, 0.584 mmol) in 5 mL of N,N-dimethylacetamide was added cesium carbonate (893
mg, 2.74 mmol). After stirring at room temperature for 36 hrs, the reaction mixture
was warmed up to 40°C and continued to stir for 8 hrs. The reaction mixture was concentrated
in vacuo and the residue was chromatographed with a silica gel column (1:1 (v/v) EtOAc / n-hexane)
to afford the title compound as a white solid (65 mg, 18 %).
MS (ESI, pos. ion) m/z: 554.1(M+1); LC-MS Rt: 4.354 min;
1H NMR (400MHz, CDCl
3): δ 0.53 (m, 1H), 0.65 (m, 1H), 0.89 (m, 1H), 1.00 (m, 1H), 1.60 (m, 2H), 1.84 (m,
2H), 2.25 (m, 1H), 2.53 (m, 1H), 4.20 (m, 2H), 5.22 (m, 1H), 6.39 (d, J=5.2Hz, 1H),
7.19 (m, 2H), 7.28 (m, 2H), 7.38 (m, 2H), 7.48 (m, 2H), 7.77 (m, 1H), 7.59 (s, 1H),
8.28 (d, J=9.2Hz, 1H), 8.58 (d, J=5.2Hz, 1H).
Example 22
N-(4-(7-(((5R)-4-oxaspiro[2.4]heptane-5-yl)methoxy)quinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
[0252]

[0253] To a mixture of ((5S)-4-oxaspiro[2.4]heptane-5-yl)methyl methanesulfonate (181.2
mg, 0.877 mmol, from example 2) and N-(4-(7-hydroxyquinolin-4-yloxy)-3-fluorophenyl)-N-phenyl-cyclopropane-1,1-dicarboxamide
(300 mg, 0.656 mmol) in 5 mL of N,N-dimethylacetamide was added cesium carbonate (893
mg, 2.74 mmol). After stirring at room temperature for 36 hrs, then the reaction mixture
was warmed up to 40°C and stirred for 8 hrs. The reaction mixture was concentrated
in vacuo and the residue was chromatographed with a silica gel column (1:1 (v/v) EtOAc / n-hexane)
to give the title compound as a white solid (234 mg, 63%).
MS (ESI, pos. ion) m/z: 568.2 (M+1); LC-MS Rt: 4.364 min;
1H NMR (400MHz, CDCl
3): δ0.56 (m, 2H), 0.91 (m, 2H), 1.60 (m, 4H), 1.83 (m, 2H), 2.03 (m, 2H), 4.18 (m,
2H), 4.52 (s, 1H), 6.38 (m, 1H), 7.20 (m, 2H), 7.30 (m, 1H), 7.38 (m, 3H), 7.48 (m,
2H), 7.76 (m, 1H), 8.02 (s, 1H), 8.25 (d, J=9.2Hz, 1H), 8.58 (d, J=5.2 Hz, 1H), 10.18
(s, 1H).
Reference Example 23
N-(4-(7-(3-(1-hydroxycyclopropyl)propoxy)quinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
[0254]

[0255] To a mixture of 3-(1-hydroxycyclopropyl)propyl methanesulfonate (170.7 mg, 0.877
mmol, from example 9) and N-(4-(7-hydroxyquinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
(300 mg, 0.656 mmol) in 5 mL of N,N-dimethylacetamide was added cesium carbonate (893
mg, 2.74 mmol). After stirring at room temperature for 36 hrs, then the reaction mixture
was warmed to 40°C for 8 hrs. The reaction mixture was concentrated
in vacuo and the residue was chromatographed with a silica gel column (4:1 (v/v) EtOAc / n-hexane)
to afford the title compound as a white solid (364.1 mg, 74 %).
MS (ESI, pos. ion) m/z: 556.2 (M+1); LC-MS Rt: 4.110 min;
1H NMR (400MHz, CDCl
3): δ 0.51 (s, 2H), 0.79 (s, 2H), 1.25 (s, 2H), 1.81 (m, 4H), 2.15 (m, 2H), 3.38 (s,
3H), 4.24 (m, 2H), 6.38 (d, J=4.8Hz, 1H), 7.25 (m, 4H), 7.46 (m, 1H), 7.77 (d, J=12Hz,
1H), 7.97 (s, 1H), 8.26 (d, J=9.2Hz, 1H), 8.58 (d, J=4.8Hz, 1H), 10.18 (s, 1H).
Example 24
N-(5-(7-(4-oxaspiro[2.4]heptane-6-yloxy)quinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
[0256]

Step1) N-(5-(7-(benzyloxy)quinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
[0257] The title compound was prepared according to the procedure described in Example
21 of step 5 by using 1-(phenylcarbamoyl)cyclopropanecarboxylic acid (1.14 g, 5.6 mmol),
HATU (2.11 g, 5.6 mmol), 5-(7-(benzyloxy)quinolin-4-yloxy)pyridin-2-amine (960 mg,
2.8 mmol) and DBU (868 mg, 7.0 mmol) in dry DCM (50 mL). The title compound was obtained
as a white solid (1.22 g, 82 %).
MS (ESI, pos. ion) m/z: 531.1(M+1); LC-MS Rt: 4.583 min;
1H NMR (400MHz, CDCl
3): δ 1.67 (m, 2H), 1.80 (m, 2H), 5.24 (s, 2H), 6.43 (d, J=4.8Hz, 1H), 7.14 (m, 1H),
7.34 (m, 4H), 7.41 (m, 2H), 7.43 (m, 3H), 7.51 (m, 3H), 8.24 (m, 2H), 8.30 (d, J=8.8Hz,
1H), 8.61 (d, J=5.2Hz, 1H), 9.10 (s, 1H), 9.44 (s, 1H).
Step2) N-(5-(7-hydroxyquinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
[0258] A solution of N-(5-(7-(benzyloxy)quinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
(1.22 g, 2.3 mmol) and Pd/C (1.2 g) in methanol (30 mL) under H
2 was stirred at room temperature for 2 hrs, then the reaction mixture was filtered
and washed with methanol (10 mL×3). The combined solvent was concentrated in
vacuo to give N-(5-(7-hydroxyquinolin-4-yloxy)pyridin-2-yl)-N-phenyl-cyclopropane-1,1-dicarboxamide
as a white solid (910.8 mg, 90 %).
MS (ESI, pos. ion) m/z: 441.2(M+1); LC-MS Rt: 3.508 min;
1H NMR (400MHz, CD
3OD): 81.69 (m, 4H), 6.55 (d, J=5.6Hz, 1H), 7.14 (m, 1H), 7.30 (m, 4H), 7.56 (m, 2H),
7.74 (m, 1H), 8.29 (m, 3H), 8.55 (d, J=5.6Hz, 1H).
Step3) N-(5-(7-(4-oxaspiro[2.4]heptane-6-yloxy)quinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
[0259]

[0260] To a mixture of (4-oxaspiro[2.4]heptane-6-yl)methanesulfonate (168 mg, 0.877 mmol)
and N-(5-(7-hydroxyquinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
(300 mg, 0.682 mmol) in 5 mL of N,N-dimethylacetamide was added cesium carbonate (893
mg, 2.74 mmol). After stirring at room temperature for 36 hrs, then the reaction mixture
was warmed up to 40 °C for 8 hrs. The reaction mixture was concentrated
in vacuo and the residue was chromatographed with a silica gel column (2:1 (v/v) EtOAc / n-hexane)
to afford the tide compound as a white solid ( 73 mg, 20 %). MS (ESI, pos. ion) m/z:
537.1 (M+1); LC-MS Rt: 4.429 min;
1H NMR (400MHz, CDCl
3): δ 0.60 (m, 2H), 0.95 (m, 2H), 1.70 (m, 4H), 2.40 (m, 1H), 2.54 (m, 1H), 4.19 (m,
2H), 5.23 (m, 1H), 6.42 (d, J=4.2Hz, 1H), 7.28 (m, 3H), 7.34 (m, 3H), 7.58 (m, 3H),
8.24 (m, 2H), 8.62 (d, J=5.2Hz, 1H), 9.10 (s, 1H).
Reference Example 25
N-(5-(7-(3-(1-hydroxycyclopropyl)propoxy)quinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
[0261]

[0262] The title compound was prepared according to the procedure described in Example
9 by using N-(5-(7-hydroxyquinolin-4-yloxy)pyridin-2-yl)-N-phenyl-cyclopropane-1,1-dicarboxamide
(300 mg, 0.682 mmol), 3-(1-hydroxycyclopropyl)-propyl methanesulfonate (155 mg, 0.80
mmol), and Cs
2CO
3 (668 mg, 2.05 mmol) in 3 mL of DMA. The residue was purified by a silical gel column
chromatography (3:1 (v/v) EtOAc / n-hexane) to give the title compound as a white
solid (238.5 mg, 65 %).
MS (ESI, pos. ion) m/z: 539.2 (M+1); LC-MS Rt: 4.156 min;
1H NMR (400MHz, CDCl
3): 50.51 (m, 2H), 0.81 (m, 2H), 1.69 (m, 2H), 1.82 (m, 4H), 2.15 (m, 2H), 4.25 (m,
2H), 6.42 (d, J=5.2Hz, 1H), 7.16 (m, 1H), 7.23 (d, J=2.8Hz, 1H), 7.36 (m, 2H), 7.44
(d, J=2.4Hz, 1H), 7.58 (m, 3H), 8.24 (m, 2H), 8.31 (d, J=8.8Hz. 1H), 8.62 (d, J=5.2Hz,
1H).

[0263] Chromatography separation also provided N-(5-(7-(3-(1-cyclopropyl methanesulfonate-1-yl)propoxy)quinolin-4-yloxy)pyridin-2-yl)-N-phenylcyclopropane-1,1-dicarboxamide
as a pale yellow solid.
MS (ESI, pos. ion) m/z: 617.1 (M+1); LC-MS Rt: 4.491 min;
1H NMR (400MHz, CDCl
3): δ0.78 (m, 2H), 1.31 (m, 2H), 1.67 (m, 2H), 1.81 (m, 2H), 2.14 (m, 4H), 3.02 (s,
3H), 4.23 (m, 2H), 6.41 (d, J=5.2Hz, 1H), 7.14 (m, 1H), 7.22 (m, 2H), 7.35 (m, 2H),
7.41 (d, J=2.4Hz, 1H), 7.58 (m, 3H), 8.22 (m, 2H), 8.30 (d, J=9.2Hz, 1H), 8.61 (d,
J=5.2Hz, 1H), 9.09 (s, 1H), 9.43 (s, 1H).
Example 26
N-(4-(7-(4-oxaspiro[2.4]heptane-6-yloxy)-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-N-phenylcycloproprane-1,1-dicarboxamide
[0264]

[0265] The title compound was prepared according to the procedure described in Example
24 by using (4-oxaspiro[2.4]heptane-6-yl)methanesulfonate (138 mg, 0.72 mmol), N-(4-(7-hydroxy-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
(300 mg, 0.616 mmol), and Cs
2CO
3 (602.5 mg, 1.848 mmol) in 3 mL of DMA. The residue was purified by a silical gel
column chromatography (2:1 (v/v) EtOAc / n-hexane). The title compound was obtained
as a white solid (186.7 mg, 52 %).
MS (ESI, pos. ion) m/z: 583.9(M+1); LC-MS Rt: 4.432 min;
1H NMR (400MHz, CDCl
3): δ0.55 (m, 1H), 0.65 (m, 1H), 0.90 (m, 1H), 1.05 (m, 1H), 1.60 (m, 2H), 1.85 (m,
2H), 4.04 (s, 3H), 4.24 (m, 2H), 5.25 (m, 1H), 6.41 (d, J=4.4Hz, 1H), 7.20 (m, 2H),
7.25 (m, 1H), 7.30 (m, 2H), 7.40 (m, 1H), 7.50 (m, 2H), 7.60 (s, 1H), 7.80 (m, 2H),
7.95 (m, 1H) 8.50 (d, J=5.2Hz, 1H), 10.25 (s, 1H).
Reference Example 27
N-[4-(7-(3-(1-hydroxycyclopropyl)propoxy)-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
[0266]

[0267] The title compound was prepared according to the procedure described in Example
9 by using N-(4-(7-hydroxy-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
(300 mg, 0.616 mmol),3-(1-hydroxycyclopropyl)propyl methanesulfonate (155 mg, 0.80
mmol), and Cs
2CO
3 (602.5 mg, 1.848 mmol) in 3 mL of DMA. The residue was purified by a silical gel
column chromatography (6:1 (v/v) EtOAc / n-hexane). The title compound was obtained
as a white solid (263 mg, 73 %).
MS (ESI, pos. ion) m/z: 586.2 (M+1); LC-MS Rt: 4.244 min;
1H NMR (400MHz, CDCl
3): δ0.46 (s, 2H), 0.76 (m, 2H), 1.61 (m, 2H), 1.84 (m, 4H), 2.22 (t, J=6.4Hz, 2H),
4.03 (s, 3H), 4.30 (t, J=6Hz, 2H), 6.41 (m, 1H), 7.21 - 7.58 (m, 8H), 7.80 (m, 1H),
7.95 (s, 1H), 8.49 (d, J=5.2Hz, 1H), 10.24 (s, 1H).
[0268] N-(4-(7-(3-(1-cyclopropyl methanesulfonate-1-yl)propoxy)-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-N-phenylcyclopropane-1,1-dicarboxamide
was obtained as a pale yellow solid.

MS (ESI, pos. ion) m/z: 664.2 (M+1); LC-MS Rt: 4.563 min;
1H NMR (400MHz, CDCl
3): δ0.78 (m, 2H), 1.30 (m, 2H), 1.60 (m, 2H), 1.85 (m, 2H), 2.11 (m, 2H), 2.25 (m,
2H), 3.06 (s, 3H), 4.03 (s, 3H), 4.28 (m, 2H), 6.41 (d, J=4.8Hz, 1H), 7.22 (m, 2H),
7.27 (m, 3H), 7.39 (m, 2H), 7.49 (d, J-8Hz, 1H), 7.57 (s, 1H), 7.79 (d, J=12Hz, 1H),
7.94 (s, 1H).
Example 28
N-(4-(7-(3-(1-hydroxycyclopropyl)propoxy)-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide
[0269]

[0270] The title compound was prepared according to the procedure described in Example
9 by using N-(4-(7-hydroxy-6-methoxyquinolin-4-yloxy)-3-fluorophenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide
(300 mg, 0.594 mmol), 3-(1-hydroxycyclopropyl)propyl methanesulfonate (155 mg, 0.80
mmol), and Cs
2CO
3 (581 mg, 1.782 mmol) in 3 mL of DMA. The residue was purified by a silical gel column
chromatography (6:1 (v/v) EtOAc / n-hexane). The title compound was obtained as a
white solid (247 mg, 69 %).
MS (ESI, pos. ion) m/z: 604.2 (M+1); Rt: 4.240 min;
1H NMR (400MHz, EDCl
3): δ0.46 (m, 2H), 0.75 (m, 2H), 1.64 (m, 2H), 1.83 (m, 4H), 2.22 (m, 2H), 4.03 (s,
3H), 4.31 (m, 2H), 6.41 (m, 1H), 7.08 (m, 2H), 7.25 (m, 1H), 7.46-7.79 (m, 5H), 8.19
(s, 1H), 8.49 (d, J=5.2Hz, 1H), 10.00 (s, 1H).
BIOLOGICAL TESTING
[0271] The efficacy of the compounds of the invention as inhibitors of receptor tyrosine
kinases, such as c-Met, KDR and/or IGF1R related activity and as anti-tumor agents
in xenograft animal models can be evaluated as follows.
MTT cell assay
[0272] Preparation Instructions: MTT ((3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) is soluble in
water (10 mg/ml), ethanol (20 mg/ml) and is also soluble in buffered salt solutions
and culture media (5 mg/ml).
MTT Solution: 5 mg/ml MTT in PBS. Solution must be filter sterilized after adding
MTT.
MTT Solvent: 4 mM HCl, 0.1% Nondet P-40 (NP40) all in isopropanol.
Procedure:
[0273] Short 96 well assay: EACH condition was done in triplicate or more.
- 1. DAY ONE: Trypsinized one T-25 flask and added 5 ml of complete media to trypsinized
cells. Centrifuged in a sterile 15 ml falcon tube at 500 rpm in the swinging bucked
rotor (∼400×g) for 5 min.
- 2. Removed media and resuspended cells to 1.0 ml with complete media.
- 3. Counted and recorded cells per ml.
- 4. Diluted the cells (cv=cv) to 75,000 cells per ml. Used completed media to dilute
cells.
- 5. Added 100 µl of cells (7500 total cells) into each well and incubated overnight.
- 6. DAY TWO: Treated cells on day two with inhibitors. - Final volume was 100 µl per
well.
- 7. DAY THREE: Added 20 µl of 5 mg/ml MTT to each well. Included one set of wells with
MTT but no cells (control).
- 8. Incubated for 3.5 hours at 37 °C in culture hood.
- 9. Carefully removed media.
- 10. Added 150 µl MTT solvent.
- 11. Covered with tinfoil and agitate cells on orbital shaker for 15 min.
- 12. Read absorbance at 590 nm with a reference filter of 620 nm.
Kinase Assays
[0274] Kinase assays can be performed by measurement of incorporation of γ-
33P ATP into immobilized myelin basic protein (MBP). High binding white 384 well plates
(Greiner) are coated with MBP (Sigma #M-1891) by incubation of 60µl/well of 20µg/ml
MBP in Tris-buffered saline (TBS; 50mM Tris pH 8.0, 138mM NaCl, 2.7mM KCl) for 24
hours at 4 °C. Plates are washed 3X with 100µl TBS. Kinase reactions are carried out
in a total volume of 34µl in kinase buffer (5mM Hepes pH 7.6, 15mM NaCl, 0.01% bovine
gamma globulin (Sigma #I-5506), 10mM MgCl
2, 1mM DTT, 0.02% TritonX-100). Compound dilutions are performed in DMSO and added
to assay wells to a final DMSO concentration of 1%. Each data point is measured in
duplicate, and at least two duplicate assays are performed for each individual compound
determination. Enzyme is added to final concentrations of 10nM or 20nM, for example.
A mixture of unlabeled ATP endγ-
33P
ATP is added to start the reaction (2×10
6 cpm of γ-
33P ATP per well (3000Ci/mmole) and either 10µM unlabeled ATP, typically. The reactions
are carried out for 1 hour at room temperature with shaking. Plates are washed 7x
with TBS, followed by the addition of 50µl/well scintillation fluid (Wallac). Plates
are read using a Wallac Trilux counter. This is only one format of such assays, various
other formats are possible, as known to one skilled in the art.
[0275] The above assay procedure can be used to determine the IC
50 for inhibition and/or the inhibition constant, K
i. The IC
50 is defined as the concentration of compound required to reduce the enzyme activity
by 50% under the condition of the assay. Exemplary compositions have IC
50's of, for example, less than about 100 µM, less than about 10µM, less than about
1µM, and further for example having IC
50's of less than about 100 nM, and still further, for example, less than about 10 nM.
The K
i for a compound may be determined from the IC
50 based on three assumptions. First, only one compound molecule binds to the enzyme
and there is no cooperativity. Second, the concentration of active enzyme and the
compound tested are known (i.e., there are no significant amounts of impurities or
inactive forms in the preparations). Third, the enzymatic rate of the enzyme-inhibitor
complex is zero.
Kinase inhibition and cellular assay.
[0276] In vitro kinase assays can also be done to establish IC
50 values against a variety of recombinant receptor and nonreceptor kinases. Optimal
enzyme, ATP, and substrate (gastrin peptide) concentrations are established for each
enzyme using homogeneous time-resolved fluorescence (HTRF) assays. Compouns are tested
in a 10-point dose-response curve for each enzyme using an ATP concentration of two-thirds
Km for each. Most assays consist of enzyme mixed with kinase reaction buffer [20 mmol/L
Tris-HCl (pH 7.5), 10 mmol/L MgCl
2, 5 mmol/L MnCl2,100 mmol/L NaCl, 1.5 mmol/L EGTA]. A final concentration of 1 mmol/L
DTT, 0.2 mmol/L NaVO
4, and 20 Ag/mL BSA is added before each assay. For Src, a modified kinase reaction
buffer is used that included 20 mmol/L Tris-HCl (pH 7.5), 2.5 mmol/L MnCl2, 100 mmol/L
NaCl, and 1.5 mmol/L EGTA. A final concentration of 1 mmol/L DTT, 0.2 mmol/L NaVO
4, and 20 Ag/mL BSA is added before each assay. For all assays, 5.75 mg/mL streptavidin-allophycocyanin
(ProZyme, San Leandro, CA) and 0.1125 nmol/L Eu-PT66 (Perkin-Elmer Corp., Boston,
MA) are added immediately before the HTRF reaction. Plates are incubated for 30 minutes
at room temperature and read on a Discovery instrument (Packard Instrument Co., Downers
Grove, IL).
c-Met Assay
[0277] c-Met biochemical activity can be assessed using a Luciferase-Coupled Chemilumineacent
Kinase assay (LCCA) format as described above. Again, kinase activity is measured
as the percent ATP remaining following the kinase reaction. Remaining ATP is detected
by luciferase-luciferin-couple chemiluminescence. Specifically, the reaction is initiated
by mixing test compounds, 1µM ATP, 1µM poly-EY and 10nM c-Met (baculovirus expressed
human c-Met kinase domain P948-S1343) in a 20µL assay buffer (20mM Tris-HCL pH7.5,
10mM MgCl
2, 0.02% Triton X-100, 100mM DTT, 2mM MnCl
2). The mixture is incubated at ambient temperature for 2 hours after which 20µL luciferase-luciferin
mix is added and the chemiluminescent signal read using a Wallac Victor
2 reader. The luciferase-luciferin mix consists of 50 mM HEPES, pH 7.8, 8.5µg/mL oxalic
acid (pH 7.8), 5 (or 50) mM DTT, 0.4% Triton X-100, 0.25 mg/mL coenzyme A, 63 µM AMP,
28 µg/mL luciferin and 40000 units of light/mL luciferase.
Tumor xenograft models
[0278] Human glioma tumor cells (U87MG cells, ATCC) are expanded in culture, harvested and
injected subcutaneously into 5-8 week old female nude mice (CD1 nu/nu, Charles River
Labs) (n=10). Subsequent administration of compound by oral gavage or by IP (10-100mpk/dose)
begins anywhere from day 0 to day 29 post tumor cell challenge and generally continues
either once or twice a day for the duration of the experiment. Progression of tumor
growth is followed by three dimensional caliper measurements and recorded as a function
of time. Intial statistical analysis is done by repeated measures analysis of variance
(RMANOVA), followed by Scheffe post hoc testing for multiple comparisons. Vehicle
alone (captisol, or the like) is the negative control.
[0279] Human gastric adenocarcinoma tumor cells (MKN45 cells, ATCC) are expanded in culture,
harvested and injected subcutaneously into 5-8 week old female nude mice (CD1 nu/nu,
Charles River Labs) (n=10). Subsequent administration of compound by oral gavage or
by IP (10-100 mpk/dose) begins anywhere from day 0 to day 29 post tumor cell challenge
and generally continues either once or twice a day for the duration of the experiment.
Progression of tumor growth is followed by three dimensional caliper measurements
and recorded as a function of time. Initial statistical analysis is done by repeated
measures analysis of variance (RMANOVA), followed by Scheffe post hoc testing for
multiple comparisons. Vehicle alone (captisol, or the like) is the negative control.
[0280] A431 cells were cultured in DMEM (low glucose) with 10% FBS and penicillin/streptomycin/glutamine.
Cells are harvested by trypsinization, washed, and adjusted to a concentration of
5 ×10
7 /mL in serum-free medium. Animals are challenged s.c. with 1×10
7 cells in 0.2 mL over the left flank. Approximately 10 days thereafter, mice are randomized
based on initial tumor volume measurements and treated with either vehicle (Ora-Plus)
or test compounds. Tumor volumes and body weights are recorded twice weekly and/or
on the day of sacrifice. Tumor volume is measured with a Pro-Max electronic digital
caliper (Sylvac, Crissier, Switzerland) and calculated using the Formulalength (mm)
× width (mm) × height (mm) and expressed in mm
3. Data are expressed as mean ±SE. Repeated measures ANOVA followed by Scheffe post
hoc testing for multiple comparisons was used to evaluate the statistical significance
of observed differences.