CROSS-REFERENCE TO RELATED APPLICATION
1. Statement as to Rights to Inventions Made Under Federally Sponsored Research and
Development
[0002] This invention was made partly with the U.S. Federal Government support under grant
no. R44AA014843. The U.S. Federal Government may have certain rights in the invention.
2. Field of the Invention
[0003] The present invention generally relates to compounds which specifically bind or antagonize
epsilon isozyme of the protein kinase C (PKCε), and the pharmaceutical compositions
containing those compounds, and the therapeutic use of those compounds.
3. Background of the Invention
[0004] Alcohol abuse and alcoholism are significant public health issues faced by many countries.
In the United States alone, alcohol use disorders affect about 14 million people,
costing approximately $184 billion a year due to lost wages, legal costs, and medical
costs resulting from associated injuries and liver, cardiac, neoplastic, or infectious
diseases. Treatment generally consists of pharmacological interventions to manage
detoxification, and psychosocial therapies aimed at rehabilitation and reducing alcohol-associated
problems. While some treatments are effective in reducing alcohol consumption, it
is estimated that 40-70% of patients return to excessive drinking within a year after
treatment (
Addiction (1996) 91:1773-1796). Advances in neuroscience have excited interest in developing pharmaceuticals to
dampen craving for alcohol and provide more effective treatment. So far, only three
drugs have been approved for treatment in the United States: Disulfuram, naltrexone
and acamprosate. Disulfuram is an irreversible inhibitor of aldehyde dehydrogenase
and reinforces a patient's desire to avoid alcohol because when alcohol is consumed,
levels of acetaldehyde increase, resulting in nausea, hypotension and flushing. Disulfuram
is useful for the short-term treatment of highly motivated and compliant patients,
but there is no evidence that it is effective in long-term therapy and it carries
a risk of significant liver, cardiac, and nervous system toxicity if taken with alcohol.
Naltrexone is a non-selective opioid receptor antagonist that decreases the euphoric
and reinforcing effects of alcohol and reduces relapse to drinking, especially when
combined with psychotherapy. Although most studies have shown it to be beneficial
(
Addiction (2001) 96:1565-1573 and references therein), others have not (
N Eng J Med (2001) 345:1734-1739 and references therein). Its clinical usefulness appears limited as naltrexone can
cause fatigue, sedation, nausea, and abdominal pain in a significant number of patients,
its beneficial effects tend to diminish over time, and compliance is variable. Acamprosate
can reduce the frequency of drinking and is indicated for maintenance of abstinence
(
Am J Health Syst Pharm (2004) 61:2272-2279 and references therein). Its mechanism of action is not well understood, though it
may mainly act to inhibit NMDA and mGluR5 receptors. Although generally well tolerated,
it can cause diarrhea in up to 20% of patients, and it also can cause rash, dizziness,
and loss of libido. For both naltrexone and acamprosate compliance is generally low,
with only about half of patients completing treatment with either drug. Clearly, there
is a need to develop more effective compounds, and several new ones are currently
being studied, including the 5HT3 receptor antagonist ondansetron and the anticonvulsant
topiramate (
Am J Health Syst Pharm (2004) 61:2380-2388 and refs therein).
[0005] A large body of preclinical data has accumulated through studies of mice deficient
in PKCε and animals treated with a peptide inhibitor of PKCε, supporting therapeutic
use of PKCε inhibitors to treat alcohol abuse and alcoholism (
Hodge et al., Nat. Neurosci., 1999, 2, 997-1002). Using PKCε null mice, it has been shown that PKCε regulates alcohol consumption,
dependence and reward. Restoration of neuronal PKCε by means of tetracycline-regulated
transgenic expression elevates alcohol intake to levels observed in wild type mice,
indicating that reduced alcohol consumption in PKCε null mice is due to loss of PKCε
in adult neurons (
Choi et al., J. Neurosci., 2002, 22, 9905-9911). PKCε null mice also show reduced operant self-administration of alcohol and reduced
relapse drinking following alcohol deprivation (
Olive et al., Eur. J. Neurosci., 2000, 12, 4131-4140). These findings are associated with less severe alcohol withdrawal seizures (
Olive et al., Neuroscience, 2001, 103, 171-179) and markedly reduced dopamine release in the nucleus accumbens following ethanol
injection (
Olive et al., Eur. J. Neurosci., 2000, 12, 4131-4140). These results suggest that the positive rewarding and reinforcing properties of
alcohol, as well as the negative effects of alcohol withdrawal could be reduced by
PKCε inhibition.
[0006] Other studies provide a strong case for therapeutic use of PKCε inhibitors to reduce
pain associated with alcoholic polyneuropathy and inflammatory and neuropathic pain.
Another study (
Dina et al., J. Neurosci., 2000, 20, 8614-8619) analyzed the role of PKCε in alcohol-induced pain using a rat model of alcohol-induced
hyperalgesia and found that the hyperalgesia was acutely attenuated by non-selective
PKC inhibitors and by a selective peptide inhibitor of PKCε, εV1-2, injected intradermally
at the site of nociceptive testing. Another study (
Aley et al., J. Neurosci., 2000, 20, 4680-4685) identified a PKCε-mediated mechanism for chronic inflammatory pain. In this case,
a nonselective inhibitor of several PKC isozymes and a selective PKCε inhibitor antagonized
the prolonged hyperalgesic response in the carrageenan injected rat hindpaw equally.
[0007] In addition, evidence indicates that PKCε inhibitors could be useful for the treatment
of anxiety, which is commonly associated with alcoholism and may contribute to excessive
drinking. Other studies (
Hodge et al., Nat. Neurosci., 1999, 2, 997-1002;
Hodge et al., J. Clin. Invest., 2002, 110, 1003-1010) examined GABA
A receptor function in PKCε null mice and found that these mice are supersensitive
to the acute hypnotic effects of barbiturates, benzodiazepines, ethanol and neurosteroids.
[0008] A large amount of evidence from preclinical studies and patient tumor analysis has
indicated that PKCε is a transforming oncogene and played a critical role in tumor
cell proliferation, motility, invasion and drug resistance (
Gorin & Pan, Molecular Cancer, 2009, 8, 9). In vitro, overexpression of PKCε has been demonstrated to increase proliferation,
motility, and invasion of fibroblasts or immortalized epithelial cells. In addition,
xenograft and transgenic animal models have clearly shown that overexpression of PKCε
is tumorigenic resulting in metastatic disease. PKCε has been found to be overexpressed
in tumor-derived cell lines and histopathological tumor specimens from various organ
sites. Activation of PKCε causes up-regulation of inhibitors of apoptosis proteins
(IAPs) and MDR1 (multidrug-resistant protein), resulting in anti-apoptosis and chemotherapy
resistance (
Bourguignon et al., J. Biol. Chem., 2009, 284, 26533-26546). Thus, PKCε inhibitors could be therapeutically useful in treating a variety of
cancer including breast, head and neck, prostate and lung cancer either used alone
or in combination with standard cancer therapy.
[0009] In another study of type 2 diabetes (
Schmitz-Peiffer et al., Cell Metabolism, 2007, 6, 320-328), a role for PKCε in β cell dysfunction was established. Deletion of PKCε augmented
insulin secretion and prevented glucose intolerance in fat-fed mice. Importantly,
a PKCε-inhibitory peptide improved insulin availability and glucose tolerance in diabetic
mice. In another study (
Samuel et al., J. Clin. Invest., 2007, 117, 739-745), PKCε, but not other isoforms of PKC, was activated in the high-fat fed rats resulting
in hepatic steatosis and hepatic insulin resistance. Knocking down PKCε expression
by treating the rats with an antisense oligonucleotide against PKCε protected rats
from fat-induced hepatic insulin resistance. Therefore, PKCε inhibitors of this invention
could be beneficial treating type 2 or type 1 diabete in humans.
[0010] In another study (
Kaiser et al., Arch. Biochem. Biophys., 2009, 482, 104-11), PKCε was shown to contribute to hepatic steatosis in experimental ethanol-induced
and non-alcoholic fatty liver disease using PKCε knockout mice and in wild-type mice
that received an anti-sense oligonucleotide to knockdown PKCε expression. The data
suggest that activation of PKCε exacerbates hepatic lipid accumulation by inducing
insulin resistance. Thus, inhibition of PKCε with the inhibitors of this invention
could prevent and/or treat liver diseases.
[0011] It was also demonstrated that PKCε is a target to control inflammation and immune-mediated
disorders (
Aksoy et al., Intern. J. Biochem. Cell Biol., 2004, 36, 183-188). Controlling the kinase activity of PKCs might represent an efficient strategy to
prevent or treat certain inflammatory disorders of microbial origin. Furthermore,
pharmacological inhibition of PKCε suppressed chronic inflammation in murine cardiac
transplantation model (
Koyanagi et al., J. Mol. Cell. Cardio., 2007, 43, 517-522). It is possible that the PKCε inhibitors of this invention could be used therapeutically
for prevention and treatment of various inflammatory conditions associated with e.g.
microbial infection and organ transplantation.
[0012] Above mentioned studies provide a strong case for development of PKCε inhibitors
to treat diseases or disorders or conditions mentioned above. Given the large number
of people who may be helped by such a drug, and given the high cost of these diseases,
the benefits to society could be enormous if an effective PKCε inhibitor can be developed.
[0013] PKC is a family of serine-threonine kinases with important roles in cell growth,
differentiation, ion channel and receptor regulation, gene expression, tumor promotion
and apoptosis. The mammalian PKC family contains at least 9 genes grouped into 3 classes:
conventional (α, β, γ), novel (δ, ε, η/L, θ), and atypical

PKC isozymes. PKC inhibitors have been considered attractive as therapeutic agents.
A relatively selective inhibitor of PKCβ, LY333531, has undergone a clinical study
for the treatment of diabetic retinopathy. The use of PKC inhibitors has been suggested
for clinical applications ranging from the treatment of psoriasis to cancer (
Expert Opin Investig Drugs (2001) 10:2117-2140 and refs therein). Knowledge of specific roles attributable to individual PKC isozymes
has been hampered by the lack of isozyme-selective drugs - there are currently no
selective small organic molecule inhibitors of PKCε and the search for selective drugs
has been difficult because of several methodological limitations (
Biochemcial Journal (2003) 371:199-204 and refs therein).
[0015] Thus, there is still a strong need for compounds that act as epsilon isozyme-selective
inhibitors of the protein PKC.
4. Summary of the Invention
[0016] In a first aspect, the invention provides compounds for use in a specified method
of treatment defined in claims 1 to 6. In another aspect, the invention provides a
pharmaceutical composition as defined in claims 7 to 10. In a further aspect, the
invention provides the compounds or pharmaceutical compositions for use in a method
of treatment as defined in claims 11 and 12. Also provided is a compound as defined
in claim 13.
5. Detailed Description
[0017] Described herein is a compound having structural Formula (Ia) or (Ic):

or a salt, solvate, or physiologically functional derivative thereof,
wherein:
X and Y are independently CR1R5, NR1, O or S, provided that at least one of X and Y is CR1R5 or NR1;
Z1 and Z2 are independently CHR2, NR2, O, or S;
Z3 is CR6 or N;
A1, A2, A3, and A4 are independently CR3 or N;
each R1, R2, R3, R4, and R5 is independently hydrogen, halogen, acyl, substituted acyl, alkoxycarbonyl, substituted
alkoxycarbonyl, aryloxycarbonyl, substituted aryloxycarbonyl, - C(O)NR7R8, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, substituted arylalkyl,
cycloheteroalkyl, substituted cycloheteroalkyl, heteroaryl, substituted heteroaryl,
heteroarylalkyl, substituted heteroarylalkyl, heteroalkyl, or substituted heteroalkyl;
R7 and R8 are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl,
substituted arylalkyl, heteroaryl, substituted heteroaryl, heteroarylalkyl, substituted
heteroarylalkyl, heteroalkyl, or substituted heteroalkyl, or alternatively, R7 and R8, taken together with the nitrogen atom to which they are attached, form a 4-, 5-,
6-, or 7-membered cycloheteroalkyl ring;
with the following provisos:
- (a) at least one of Z1 and Z2 is CHR2 or NR2;
- (b) at least one of A1, A2, A3, and A4 is CR3;
- (c) at least one of R1, R2, R3 and R5 is not hydrogen;
- (d) when R1 and R5 are independently hydrogen, aryl or substituted aryl; R2 is hydrogen, arylalkyl or substituted arylalkyl; then R3 is not aryl, substituted aryl, heteroaryl, or substituted heteroaryl;
- (e) when R3 is -C(O)NR5R6; R2 is hydrogen or substituted arylalkyl; and at least one of R1 and R5 is not halogen, acyl, substituted acyl, alkoxycarbonyl, substituted alkoxycarbonyl,
alkyl, or substituted alkyl; and
- (f) when R3 is -C(O)NR5R6; R5 is hydrogen; R6 is substituted alkyl, arylalkyl, substituted arylalkyl, heteroaryl, heteroalkyl or
substituted aryl; R2 is hydrogen or substituted arylalkyl; then at least one R1 is not halogen, acyl, substituted acyl, alkoxycarbonyl, substituted alkoxycarbonyl,
alkyl, or substituted alkyl.
[0018] Also described herein is a compound having structural formula (II):

or a salt, solvate, or physiologically functional derivative thereof,
wherein:
A is N or CH;
B is a 5-, 6-, or 7-membered cycloalkyl, substituted cycloalkyl, cycloheteroalkyl,
substituted cycloheteroalkyl, aryl, substituted aryl, heteroaryl, or substituted heteroaryl
ring;
D is NR4, S, or O;
R1, R2, R3, and R4 are independently hydrogen, halogen, acyl, substituted acyl, alkoxycarbonyl, substituted
alkoxycarbonyl, aryloxycarbonyl, substituted aryloxycarbonyl, - C(O)NR5R6, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, substituted arylalkyl,
cycloheteroalkyl, substituted cycloheteroalkyl, heteroaryl, substituted heteroaryl,
heteroarylalkyl, substituted heteroarylalkyl, heteroalkyl, or substituted heteroalkyl;
R5 and R6 are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl,
substituted arylalkyl, heteroaryl, substituted heteroaryl, heteroarylalkyl, substituted
heteroarylalkyl, heteroalkyl or substituted heteroalkyl, or alternatively, R5 and R6, taken together with the nitrogen atom to which they are attached, form a 4-, 5-,
6-, or 7-membered cycloheteroalkyl ring; and
X is -CH2-, -CH2-O-, -CH2-S-, -O- or -S-.
[0019] Also described herein is a pharmaceutical composition comprising one or more compounds
of the present invention having structural formula (Ia), (Ic), (Ii), or (II), or a
salt, solvate, or physiologically functional derivative thereof, and a pharmaceutically
acceptable vehicle.
[0020] Also described herein is a method of treating a disease or condition associated with
irregular activity of PKCε in a patient, comprising administering to the patient a
therapeutically effective amount of one or more compounds described herein having
structural formula (Ia), (Ic), (Ii) or (II), or a salt, solvate, or physiologically
functional derivative thereof.
Brief Description of the Drawings
[0021]
Figure 1. Kinetic analysis showed that a compound of the present invention (#481) inhibits
PKCε non-competitively with ATP. (A) Initial velocity (Vi) plotted against ATP concentration at various concentrations
of the compound plus vehicle control. (B) Lineweaver-Burk double reciprocal plot showing differences in Vmax but not in km for the 4 conditions.
Figure 2. A compound of the present invention (#901) significantly reduced oral intake of alcohol
(20% ethanol) in C57BL/6J mice under the 4-hr drinking in the dark (DID) protocol
(F(3,66)=29.65, p<0.0001, one-way ANOVA repeated measurement followed by Dunnet's post-hoc test). The
data are presented as mean ± SEM. *p<0.05, ***p<0.001 as compared with the vehicle control.
[0022] There are no reported small organic molecule inhibitors of PKCε kinase that specifically
bind to the PKCε and inhibit PKCε non-competitively with respect to ATP. The term
of "allosteric inhibitor" of a protein kinase generally refer to a protein kinase
inhibitor binding at the protein's allosteric site (i.e., a site other than the protein's
active site or ATP-binding site) and hence inhibiting protein activity non-competitively
with respect to ATP. Allosteric inhibitors are an emerging class of small organic
molecule therapeutic agents that may be able to offer patients better outcomes than
with traditional small organic molecule therapies. The present invention relates to
novel small organic molecules that inhibit PKCε non-competitively with respect to
ATP. There are many advantages to a ATP-non-competitive PKCε inhibitor. This potential
stems from its ability to offer greater selectivity and better modulatory control
at disease mediating proteins or targets. Allosteric inhibitors bind to regulatory
sites distinct from the active site on the protein, resulting in conformational changes
that may profoundly influence protein function.
[0023] For one, these inhibitors would not compete with ATP. A serine/threonine protein
kinase, such as PKCε, catalyzes the transfer of a phosphate group from a molecule
of ATP to a serine/ threonine residue located on a protein substrate. The inhibitors
of kinases so far known in the art are usually competitive with either ATP or the
substrate of the kinase, or both simultaneously. Since the concentration of ATP in
a cell is normally very high (millimolar), compounds that are competitive with ATP
may show diminished efficacy and duration of action since it would be difficult for
such compounds to reach the concentrations within the cell that are necessary to displace
the ATP from its binding site for the extended time needed to achieve therapeutic
use effectively. Allosteric inhibitors do not compete with endogenous ligands, e.g.
ATP or substrate, and therefore can exert their influence even if an endogenous ligand
is bound to another site on the same target at the same time. Allosteric inhibitors
may offer a less disruptive way to influence the functioning of biological systems.
Since they bind on a distinct site, it is possible to combine allosteric modulators
with orthosteric drugs to achieve better therapeutic use. Compounds which inhibit
kinases in an reversible manner and are non-competitive with ATP or protein substrate
are mostly sought after for therapeutic development. Since orthosteric modulators
need to compete with natural ligands, they require higher doses, raising safety issues.
Allosteric modulators do not compete with natural ligands and may be effective at
lower, safer doses.
[0024] The compound of the present invention, or a salt, prodrug or softdrug, salt of prodrug
or softdrug, solvate or hydrate, or physiologically functional derivative thereof,
or a pharmaceutical composition containing the compound of the present invention,
or a salt, prodrug or softdrug, salt of prodrug or softdrug, solvate or hydrate, or
physiologically functional derivative thereof and one or more pharmaceutically acceptable
vehicle, is administered a therapeutically effective amount of a compound of the present
invention to said patient, preferably a human, suffering from a disease, disorder,
symptom or condition selected from the group consisting of: acute pain, chronic pain,
inflammatory pain, neuropathic pain, diabetic neuropathy, alcoholic polyneuropathy,
cancer- or chemotherapy-induced pain, a generalized pain disorder, tonic pain, persistent
pain, postoperative pain, chemical-induced pain, drug-induced pain, migraine, anxiety,
skeletal muscle spasms, convulsive seizures, alcohol abuse and alcoholism associated
diseases, insomnia, pain associated with alcohol-induced hyperalgesia, type 1 and
type 2 diabetes, diabetic complications, hepatic steatosis or liver cirrhosis, bipolar
disorder, mania, epilepsy, sleeping disorder, burn, posttraumatic stress disorder,
cardiac disorder, smoking, inflammation and immune-mediated disorders (including microbial
infection and organ transplantation), insomnia, , postoperative pain, cancer (including
breast, head and neck, prostate and lung cancer), maladaptive substance use, substance
dependence, alcohol use or abuse, substance use or abuse, drug use or abuse, drug-related
effect and a combination thereof for medical treatment purpose
[0025] A compound of the present invention inhibits PKCε at less than one micromolar concentration
and acts reversibly and noncompetitively with ATP and substrate, indicating that it
binds at an allosteric site of the enzyme. The compounds of the present invention
exhibited high specificity to PKCε when compared with related kinases, including other
isozymes of PKC family, the highly related PKCθ. This specificity may be related to
actions at an allosteric site that is quite unique to PKCε.
6.1 Definitions
[0026] Terms used in the claims and specification are defined as set forth below unless
otherwise specified.
[0027] The term "compound(s) of the present invention", or "the present compound(s)" refers
to one or more compounds encompassed by the structural formulae of the claims and/or
any subgeneric formulae disclosed herein and includes any specific compounds within
these generic formula whose structure is disclosed herein. Compounds described herein
may contain one or more chiral centers and/or double bonds and therefore, may exist
as stereoisomers, such as double-bond isomers (
i.e., geometric isomers), the racemic mixtures, enantiomers or diastereomers. Accordingly,
the chemical structures depicted herein encompass all possible enantiomers and stereoisomers
of the illustrated compounds including the stereoisomerically pure form (
e.g., geometrically pure, enantiomerically pure or diastereomerically pure) and enantiomeric
and stereoisomeric mixtures. The compounds described herein may also exist in several
tautomeric forms. Accordingly, the chemical structures depicted herein encompass all
possible tautomeric forms of the illustrated compounds. Compounds also include isotopically
labeled compounds where one or more atoms have an atomic mass different from the atomic
mass conventionally found in nature. Examples of isotopes that may be incorporated
into the compounds include, but are not limited to,
2H,
3H,
13C,
14C,
15N,
17O,
18O,
etc. Compounds may exist in unsolvated forms as well as solvated forms, including hydrated
forms and as N-oxides. In general, the salt, hydrated, solvated, ester, prodrug, softdrug,
salt of prodrug or softdrug, and N-oxide forms, as well as metabolite(s) or physiologically
functional derivative(s) of the compound of the present invention are within the scope
of the present desclosure. Certain compounds described herein may exist in multiple
crystalline forms or an amorphous form. In general, all physical forms are equivalent
for the uses contemplated herein and are intended to be within the scope of the present
disclosure. Also described herein are compounds where one or more carbon atoms have
been replaced by one or more boron atoms.
[0028] The term "physiologically functional derivative(s)" used herein refers to any physiologically
tolerated derivative of a compound of the the present disclosure, for example, an
ester or prodrug, which, upon administration to a mammal, e.g., a human, are transformed
directly or indirectly to a compound of formula (Ia), (Ic), (Ii), (II), or an active
metabolite thereof. Physiologically functional derivatives include prodrugs of the
compounds described herein. Examples of prodrug are described in
H. Okada et al., Chem. Pharm. Bull. 1994, 42, 57-61. Such prodrugs can be metabolized in vivo to a compound of the invention. These prodrugs
may themselves be active or not.
[0029] "Alkyl" by itself or as part of another substituent, refers to a saturated or unsaturated,
branched, straight-chain or cyclic monovalent hydrocarbon radical derived by the removal
of one hydrogen atom from a single carbon atom of a parent alkane, alkene or alkyne.
The term "alkyl" is specifically intended to include groups having any degree or level
of saturation,
i.e., groups having exclusively single carbon-carbon bonds, groups having one or more
double carbon-carbon bonds, groups having one or more triple carbon-carbon bonds and
groups having mixtures of single, double and triple carbon-carbon bonds. Where a specific
level of saturation is intended, the expressions "alkanyl," "alkenyl," and "alkynyl"
are used. In some embodiments, an alkyl group comprises from 1 to 20 carbon atoms
(C
1-C
20 alkyl). In other embodiments, an alkyl group comprises from 1 to 10 carbon atoms
(C
1-C
10 alkyl). In still other embodiments, an alkyl group comprises from 1 to 6 carbon atoms
(C
1-C
6 alkyl). Typical alkyl groups include, but are not limited to, methyl; ethyls such
as ethanyl, ethenyl, ethynyl; propyls such as propan-1-yl, propan-2-yl, cyclopropan-1-yl,
prop-1-en-1-yl, prop-1-en-2-yl, prop-2-en-1-yl (allyl), cycloprop-1-en-1-yl; cycloprop-2-en-1-yl,
prop-1-yn-1-yl, prop-2-yn-1-yl,
etc.; butyls such as butan-1-yl, butan-2-yl, 2-methyl-propan-1-yl, 2-methyl-propan-2-yl,
cyclobutan-1-yl, but-1-en-1-yl, but-1-en-2-yl, 2-methyl-prop-1-en-1-yl, but-2-en-1-yl,
but-2-en-2-yl, buta-1,3-dien-1-yl, buta-1,3-dien-2-yl, cyclobut-1-en-1-yl, cyclobut-1-en-3-yl,
cyclobuta-1,3-dien-1-yl, but-1-yn-1-yl, but-1-yn-3-yl, but-3-yn-1-yl,
etc.; and the like.
[0030] "Alkanyl," by itself or as part of another substituent, refers to a saturated branched,
straight-chain or cyclic alkyl radical derived by the removal of one hydrogen atom
from a single carbon atom of a parent alkane. Typical alkanyl groups include, but
are not limited to, methanyl; ethanyl; propanyls such as propan-1-yl, propan-2-yl
(isopropyl), cyclopropan-1-yl,
etc.; butanyls such as butan-1-yl, butan-2-yl (
sec-butyl), 2-methyl-propan-1-yl (isobutyl), 2-methyl-propan-2-yl (
t-butyl), cyclobutan-1-yl,
etc.; and the like.
[0031] "Alkenyl," by itself or as part of another substituent, refers to an unsaturated
branched, straight-chain or cyclic alkyl radical having at least one carbon-carbon
double bond derived by the removal of one hydrogen atom from a single carbon atom
of a parent alkene. The group may be in either the
cis or
trans (
E or Z) conformation about the double bond(s). Typical alkenyl groups include, but
are not limited to, ethenyl; propenyls such as prop-1-en-1-yl, prop-1-en-2-yl, prop-2-en-1-yl
(allyl), prop-2-en-2-yl, cycloprop-1-en-1-yl; cycloprop-2-en-1-yl; butenyls such as
but-1-en-1-yl, but-1-en-2-yl, 2-methyl-prop-1-en-1-yl, but-2-en-1-yl, but-2-en-1-yl,
but-2-en-2-yl, buta-1,3-dien-1-yl, buta-1,3-dien-2-yl, cyclobut-1-en-1-yl, cyclobut-1-en-3-yl,
cyclobuta-1,3-dien-1-yl,
etc.; and the like.
[0032] "Alkynyl," by itself or as part of another substituent refers to an unsaturated branched,
straight-chain or cyclic alkyl radical having at least one carbon-carbon triple bond
derived by the removal of one hydrogen atom from a single carbon atom of a parent
alkyne. Typical alkynyl groups include, but are not limited to, ethynyl; propynyls
such as prop-1-yn-1-yl, prop-2-yn-1-yl,
etc.; butynyls such as but-1-yn-1-yl, but-1-yn-3-yl, but-3-yn-1-yl,
etc.; and the like.
[0033] "Alkyldiyl" by itself or as part of another substituent, refers to a saturated or
unsaturated, branched, straight-chain or cyclic divalent hydrocarbon group derived
by the removal of one hydrogen atom from each of two different carbon atoms of a parent
alkane, alkene or alkyne, or by the removal of two hydrogen atoms from a single carbon
atom of a parent alkane, alkene or alkyne. The two monovalent radical centers or each
valency of the divalent radical center can form bonds with the same or different atoms.
Typical alkyldiyl groups include, but are not limited to methandiyl; ethyldiyls such
as ethan-1,1-diyl, ethan-1,2-diyl, ethen-1,1-diyl, ethen-1,2-diyl; propyldiyls such
as propan-1,1-diyl, propan-1,2-diyl, propan-2,2-diyl, propan-1,3-diyl, cyclopropan-1,1-diyl,
cyclopropan-1,2-diyl, prop-1-en-1,1-diyl, prop-1-en-1,2-diyl, prop-2-en-1,2-diyl,
prop-1-en-1,3-diyl, cycloprop-1-en-1,2-diyl, cycloprop-2-en-1,2-diyl, cycloprop-2-en-1,1-diyl,
prop-1-yn-1,3-diyl,
etc.; butyldiyls such as, butan-1,1-diyl, butan-1,2-diyl, butan-1,3-diyl, butan-1,4-diyl,
butan-2,2-diyl, 2-methyl-propan-1,1-diyl, 2-methyl-propan-1,2-diyl, cyclobutan-1,1-diyl;
cyclobutan-1,2-diyl, cyclobutan-1,3-diyl, but-1-en-1,1-diyl, but-1-en-1,2-diyl, but-1-en-1,3-diyl,
but-1-en-1,4-diyl, 2-methyl-prop-1-en-1,1-diyl, 2-methanylidene-propan-1,1-diyl, buta-1,3-dien-1,1-diyl,
buta-1,3-dien-1,2-diyl, buta-1,3-dien-1,3-diyl, buta-1,3-dien-1,4-diyl, cyclobut-1-en-1,2-diyl,
cyclobut-1-en-1,3-diyl, cyclobut-2-en-1,2-diyl, cyclobuta-1,3-dien-1,2-diyl, cyclobuta-1,3-dien-1,3-diyl,
but-1-yn-1,3-diyl, but-1-yn-1,4-diyl, buta-1,3-diyn-1,4-diyl,
etc.; and the like. Where specific levels of saturation are intended, the nomenclature
alkanyldiyl, alkenyldiyl and/or alkynyldiyl is used. In some embodiments, the alkyldiyl
group is (C
1-C
20) alkyldiyl, more preferably, (C
1-C
10) alkyldiyl, most preferably, (C
1-C
6) alkyldiyl.
[0034] "Alkyleno" by itself or as part of another substituent, refers to a straight-chain
alkyldiyl group having two terminal monovalent radical centers derived by the removal
of one hydrogen atom from each of the two terminal carbon atoms of straight-chain
parent alkane, alkene or alkyne. Typical alkyleno groups include, but are not limited
to, methano; ethylenos such as ethano, etheno, ethyno; propylenos such as propano,
prop[1]eno, propa[1,2]dieno, prop[1]yno, etc.; butylenos such as butano, but[1]eno,
but[2]eno, buta[1,3]dieno, but[1]yno, but[2]yno, but[1,3]diyno,
etc.; and the like. Where specific levels of saturation are intended, the nomenclature
alkano, alkeno and/or alkyno is used.
[0035] "Acyl" by itself or as part of another substituent refers to a radical -C(O)R
200, where R
200 is hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, substituted
arylalkyl, heteroalkyl, substituted heteroalkyl, heteroarylalkyl or substituted heteroarylalkyl
as defined herein. Representative examples include, but are not limited to formyl,
acetyl, cyclohexylcarbonyl, cyclohexylmethylcarbonyl, benzoyl, benzylcarbonyl and
the like.
[0036] "Amino" by itself or as part of another substituent refers to a radical -NR
aR
b, where R
a and R
b are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl,
substituted arylalkyl, heteroalkyl, substituted heteroalkyl, heteroarylalkyl or substituted
heteroarylalkyl as defined herein, or alternatively R
a and R
b, taken together with the atoms to which they are bonded, form a cycloheteroalkyl
ring. Representative examples include, but are not limited to -NH
2, -NHCH
3, -N(CH
3)
2, -NH-phenyl, -NH-CH
2-phenyl, pyrrolidine, and the like.
[0037] "Aryl," by itself or as part of another substituent, refers to a monovalent aromatic
hydrocarbon group derived by the removal of one hydrogen atom from a single carbon
atom of a parent aromatic ring system, as defined herein. Typical aryl groups include,
but are not limited to, groups derived from aceanthrylene, acenaphthylene, acephenanthrylene,
anthracene, azulene, benzene, chrysene, coronene, fluoranthene, fluorene, hexacene,
hexaphene, hexalene,
as-indacene, s-indacene, indane, indene, naphthalene, octacene, octaphene, octalene,
ovalene, penta-2,4-diene, pentacene, pentalene, pentaphene, perylene, phenalene, phenanthrene,
picene, pleiadene, pyrene, pyranthrene, rubicene, triphenylene, trinaphthalene and
the like. In some embodiments, an aryl group comprises from 6 to 20 carbon atoms (C
6-C
20 aryl). In other embodiments, an aryl group comprises from 6 to 15 carbon atoms (C
6-C
15 aryl). In still other embodiments, an aryl group comprises from 6 to 10 carbon atoms
(C
6-C
10 aryl).
[0038] "Arylalkyl," by itself or as part of another substituent, refers to an acyclic alkyl
group in which one of the hydrogen atoms bonded to a carbon atom, typically a terminal
or
sp3 carbon atom, is replaced with an aryl group as, as defined herein. Typical arylalkyl
groups include, but are not limited to, benzyl, 2-phenylethan-1-yl, 2-phenylethen-1-yl,
naphthylmethyl, 2-naphthylethan-1-yl, 2-naphthylethen-1-yl, naphthobenzyl, 2-naphthophenylethan-1-yl
and the like. Where specific alkyl moieties are intended, the nomenclature arylalkanyl,
arylalkenyl and/or arylalkynyl is used. In some embodiments, an arylalkyl group is
(C
6-C
30) arylalkyl,
e.g., the alkanyl, alkenyl or alkynyl moiety of the arylalkyl group is (C
1-C
10) alkyl and the aryl moiety is (C
6-C
20) aryl. In other embodiments, an arylalkyl group is (C
6-C
20) arylalkyl,
e.g., the alkanyl, alkenyl or alkynyl moiety of the arylalkyl group is (C
1-C
8) alkyl and the aryl moiety is (C
6-C
12) aryl. In still other embodiments, an arylalkyl group is (C
6-C
15) arylalkyl,
e.g., the alkanyl, alkenyl or alkynyl moiety of the arylalkyl group is (C
1-C
5) alkyl and the aryl moiety is (C
6-C
10) aryl.
[0039] "Aryloxy," by itself or as part of another substituent, refers to a radical of the
formula -O-R
201, where R
201 is aryl, substituted aryl, arylalkyl, or substituted arylalkyl.
[0040] "Aryloxycarbonyl," by itself or as part of another substituent, refers to a radical
of the formula -C(O)-O-R
201, where R
201 is aryl, substituted aryl, arylalkyl, or substituted arylalkyl.
[0041] "Cycloalkyl" or "carbocyclyl" by itself or as part of another substituent, refers
to a saturated or unsaturated cyclic alkyl radical, as defined herein. Where a specific
level of saturation is intended, the nomenclature "cycloalkanyl" or "cycloalkenyl"
is used. Typical cycloalkyl groups include, but are not limited to, groups derived
from cyclopropane, cyclobutane, cyclopentane, cyclohexane, and the like. In some embodiments,
a cycloalkyl group comprises from 3 to 10 ring atoms (C
3-C
10 cycloalkyl). In other embodiments, a cycloalkyl group comprises from 3 to 7 ring
atoms (C
3-C
7 cycloalkyl).
[0042] "Cycloheteroalkyl" or "heterocyclyl" by itself or as part of another substituent,
refers to a saturated or unsaturated cyclic alkyl radical in which one or more carbon
atoms (and optionally any associated hydrogen atoms) are independently replaced with
the same or different heteroatom. Typical heteroatoms to replace the carbon atom(s)
include, but are not limited to, B, N, P, O, S, Si,
etc. Where a specific level of saturation is intended, the nomenclature "cycloheteroalkanyl"
or "cycloheteroalkenyl" is used. Typical cycloheteroalkyl groups include, but are
not limited to, groups derived from epoxides, azirines, thiiranes, imidazolidine,
morpholine, piperazine, piperidine, pyrazolidine, pyrrolidone, quinuclidine, borolane,
dioxaborolane, and the like. In some embodiments, the cycloheteroalkyl group comprises
from 3 to 10 ring atoms (3-10 membered cycloheteroalkyl). In other embodiments, the
cycloalkyl group comprise from 5 to 7 ring atoms (5-7 membered cycloheteroalkyl).
[0043] A cycloheteroalkyl group may be substituted at a heteroatom, for example, a nitrogen
atom, with a (C
1-C
6) alkyl group. As specific examples, N-methyl-imidazolidinyl, N-methyl-morpholinyl,
N-methyl-piperazinyl, N-methyl-piperidinyl, N-methyl-pyrazolidinyl and N-methyl-pyrrolidinyl
are included within the definition of "cycloheteroalkyl." A cycloheteroalkyl group
may be attached to the remainder of the molecule
via a ring carbon atom or a ring heteroatom.
[0044] "Heteroalkyl, Heteroalkanyl, Heteroalkenyl, Heteroalkanyl, Heteroalkyldiyl and Heteroalkyleno"
by themselves or as part of another substituent, refer to alkyl, alkanyl, alkenyl,
alkynyl, alkyldiyl and alkyleno groups, respectively, in which one or more of the
carbon atoms (and any associated hydrogen atoms) are each independently replaced with
the same or different heteroatomic groups. Typical heteroatomic groups which can be
included in these groups include, but are not limited to, -O-, -S-, -O-O-, -S-S-,
-O-S-, -NR
203R
204-, =N-N=, -N=N-, -N=N-NR
205R
206, -PR
207-, -P(O)
2-, -POR
208-, -O-P(O)
2-, -SO-, -SO
2-, -SnR
209 R
210-, -BR
211R
212, BOR
213OR
214 and the like, where R
203, R
204, R
205, R
206, R
207, R
208, R
209, R
210, R
211, R
212, R
213 and R
214 are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl,
substituted arylalkyl, cycloalkyl, substituted cycloalkyl, cycloheteroalkyl, substituted
cycloheteroalkyl, heteroalkyl, substituted heteroalkyl, heteroaryl, substituted heteroaryl,
heteroarylalkyl or substituted heteroarylalkyl.
[0045] "Heteroaryl," by itself or as part of another substituent, refers to a monovalent
heteroaromatic radical derived by the removal of one hydrogen atom from a single atom
of a parent heteroaromatic ring systems, as defined herein. Typical heteroaryl groups
include, but are not limited to, groups derived from acridine, β-carboline, chromane,
chromene, cinnoline, furan, imidazole, indazole, indole, indoline, indolizine, isobenzofuran,
isochromene, isoindole, isoindoline, isoquinoline, isothiazole, isoxazole, naphthyridine,
oxadiazole, oxazole, perimidine, phenanthridine, phenanthroline, phenazine, phthalazine,
pteridine, purine, pyran, pyrazine, pyrazole, pyridazine, pyridine, pyrimidine, pyrrole,
pyrrolizine, quinazoline, quinoline, quinolizine, quinoxaline, tetrazole, thiadiazole,
thiazole, thiophene, triazole, xanthene, furopyridine, and the like. In some embodiments,
the heteroaryl group comprises from 5 to 20 ring atoms (5-20 membered heteroaryl).
In other embodiments, the heteroaryl group comprises from 5 to 10 ring atoms (5-10
membered heteroaryl). Exemplary heteroaryl groups include those derived from furan,
thiophene, pyrrole, benzothiophene, benzofuran, benzimidazole, indole, pyridine, pyrazole,
quinoline, imidazole, oxazole, isoxazole and pyrazine.
[0046] "Heteroarylalkyl" by itself or as part of another substituent refers to an acyclic
alkyl group in which one of the hydrogen atoms bonded to a carbon atom, typically
a terminal or
sp3 carbon atom, is replaced with a heteroaryl group. Where specific alkyl moieties are
intended, the nomenclature heteroarylalkanyl, heteroarylakenyl and/or heteroarylalkynyl
is used. In some embodiments, the heteroarylalkyl group is a 6-21 membered heteroarylalkyl,
e.g., the alkanyl, alkenyl or alkynyl moiety of the heteroarylalkyl is (C
1-C
6) alkyl and the heteroaryl moiety is a 5-15-membered heteroaryl. In other embodiments,
the heteroarylalkyl is a 6-13 membered heteroarylalkyl,
e.g., the alkanyl, alkenyl or alkynyl moiety is (C
1-C
3) alkyl and the heteroaryl moiety is a 5-10 membered heteroaryl.
[0047] "Heteroaryloxy," by itself or as part of another substituent, refers to a radical
of the formula -O-R
201, where R
201 is heteroaryl, substituted heteroaryl, heteroarylalkyl, or substituted heteroarylalkyl.
[0048] "Heteroaryloxycarbonyl," by itself or as part of another substituent, refers to a
radical of the formula -C(O)-O-R
201, where R
201 is heteroaryl, substituted heteroaryl, heteroarylalkyl, or substituted heteroarylalkyl.
[0049] "Parent Aromatic Ring System" refers to an unsaturated cyclic or polycyclic ring
system having a conjugated π electron system. Specifically included within the definition
of "parent aromatic ring system" are fused ring systems in which one or more of the
rings are aromatic and one or more of the rings are saturated or unsaturated, such
as, for example, fluorene, indane, indene, phenalene,
etc. Typical parent aromatic ring systems include, but are not limited to, aceanthrylene,
acenaphthylene, acephenanthrylene, anthracene, azulene, benzene, chrysene, coronene,
fluoranthene, fluorene, hexacene, hexaphene, hexalene,
as-indacene,
s-indacene, indane, indene, naphthalene, octacene, octaphene, octalene, ovalene, penta-2,4-diene,
pentacene, pentalene, pentaphene, perylene, phenalene, phenanthrene, picene, pleiadene,
pyrene, pyranthrene, rubicene, triphenylene, trinaphthalene and the like.
[0050] "Parent Heteroaromatic Ring System" refers to a parent aromatic ring system in which
one or more carbon atoms (and optionally any associated hydrogen atoms) are each independently
replaced with the same or different heteroatom. Typical heteroatoms to replace the
carbon atoms include, but are not limited to, B, N, P, O, S, Si,
etc. Specifically included within the definition of "parent heteroaromatic ring system"
are fused ring systems in which one or more of the rings are aromatic and one or more
of the rings are saturated or unsaturated, such as, for example, benzodioxan, benzofuran,
chromane, chromene, indole, indoline, xanthene,
etc. Typical parent heteroaromatic ring systems include, but are not limited to, arsindole,
carbazole, β-carboline, chromane, chromene, cinnoline, furan, imidazole, indazole,
indole, indoline, indolizine, isobenzofuran, isochromene, isoindole, isoindoline,
isoquinoline, isothiazole, isoxazole, naphthyridine, oxadiazole, oxazole, perimidine,
phenanthridine, phenanthroline, phenazine, phthalazine, pteridine, purine, pyran,
pyrazine, pyrazole, pyridazine, pyridine, pyrimidine, pyrrole, pyrrolizine, quinazoline,
quinoline, quinolizine, quinoxaline, tetrazole, thiadiazole, thiazole, thiophene,
triazole, xanthene and the like.
[0051] "Protecting group" refers to a grouping of atoms that when attached to a reactive
functional group in a molecule masks, reduces or prevents reactivity of the functional
group. Examples of protecting groups can be found in
Green et al., "Protective Groups in Organic Chemistry", (Wiley, 2nd ed. 1991) and
Harrison et al., "Compendium of Synthetic Organic Methods", Vols. 1-8 (John Wiley
and Sons, 1971-1996). Representative amino protecting groups include, but are not limited to, formyl,
acetyl, trifluoroacetyl, benzyl, benzyloxycarbonyl ("CBZ"),
tert-butoxycarbonyl ("Boc"), trimethylsilyl ("TMS"), 2-trimethylsilyl-ethanesulfonyl ("SES"),
trityl and substituted trityl groups, allyloxycarbonyl, 9-fluorenylmethyloxycarbonyl
("FMOC"), nitro-veratryloxycarbonyl ("NVOC") and the like. Representative hydroxy
protecting groups include, but are not limited to, those where the hydroxy group is
either acylated or alkylated such as benzyl, and trityl ethers as well as alkyl ethers,
tetrahydropyranyl ethers, trialkylsilyl ethers and allyl ethers.
[0052] "Salt" refers to a salt of a compound, which possesses the desired pharmacological
activity of the parent compound. Such salts include: (1) acid addition salts, formed
with inorganic acids such as hydrochloric acid, hydrobromic acid, sulfuric acid, nitric
acid, phosphoric acid, and the like; or formed with organic acids such as acetic acid,
propionic acid, hexanoic acid, cyclopentanepropionic acid, glycolic acid, pyruvic
acid, lactic acid, malonic acid, succinic acid, malic acid, maleic acid, fumaric acid,
tartaric acid, citric acid, benzoic acid, 3-(4-hydroxybenzoyl) benzoic acid, cinnamic
acid, mandelic acid, methanesulfonic acid, ethanesulfonic acid, 1,2-ethane-disulfonic
acid, 2-hydroxyethanesulfonic acid, benzenesulfonic acid, 4-chlorobenzenesulfonic
acid, 2-naphthalenesulfonic acid, 4-toluenesulfonic acid, camphorsulfonic acid, 4-methylbicyclo[2.2.2]-oct-2-ene-1-carboxylic
acid, glucoheptonic acid, 3-phenylpropionic acid, trimethylacetic acid, tertiary butylacetic
acid, lauryl sulfuric acid, gluconic acid, glutamic acid, hydroxynaphthoic acid, salicylic
acid, stearic acid, muconic acid, and the like; or (2) salts formed when an acidic
proton present in the parent compound is replaced by a metal ion,
e.g., an alkali metal ion, an alkaline earth ion, or an aluminum ion; or coordinates
with an organic base such as ethanolamine, diethanolamine, triethanolamine, N-methylglucamine
and the like.
[0053] "Solvate" means a compound formed by solvation (the combination of solvent molecules
with molecules or ions of the solute, i.e., a compound of the present invention),
or an aggregate that consists of a solute ion or molecule (the compound of the present
invention) with one or more solvent molecules. When the solvent contains water, the
solvate my be hydrate.
[0054] "Prodrug or softdrug" refers to a precursor of a pharmaceutically active compound
wherein the precursor itself may or may not be pharmaceutically active but, upon administration,
will be converted, either metabolically or otherwise, into the pharmaceutically active
compound or drug of interest. For example, prodrug or softdrug is an ester or an ether
form of a pharmaceutically active compound. Several prodrugs have been prepared and
disclosed for a variety of pharmaceuticals. See, for example,
Bundgaard, H. and Moss, J., J. Pharm. Sci. 78: 122-126 (1989). Thus, one of ordinary skill in the art knows how to prepare these precursors, prodrugs
or softdrugs with commonly employed techniques of organic synthesis.
[0055] "Substituted," when used to modify a specified group or radical, means that one or
more hydrogen atoms of the specified group or radical are each, independently of one
another, replaced with the same or different substituent(s). Substituent groups useful
for substituting saturated carbon atoms in the specified group or radical include,
but are not limited to -R
a, halo, -O
-, =O, -OR
b, , -SR
b, -S
-, =S, -NR
cR
c, =NR
b, =N-OR
b, trihalomethyl, -CF
3, -CN, -OCN, -SCN, -NO, -NO
2, =N
2, -N
3, -S(O)
2R
b, -S(O)
2NR
b, -S(O)
2O
-, -S(O)
2OR
b, -OS(O)
2R
b, -OS(O)
2O
-, -OS(O)
2OR
b, - P(O)(O
-)
2, -P(O)(OR
b)(O
-), -P(O)(OR
b)(OR
b), -C(O)R
b, -C(S)R
b, -C(NR
b)R
b, -C(O)O
-, -C(O) OR
b, -C(S)OR
b, -C(O)NR
cR
c, -C(NR
b)NR
cR
c, -OC(O)R
b, -OC(S)R
b, -OC(O)O
-, -OC(O)OR
b, -OC(S)OR
b, -NR
bC(O)R
b, -NR
bC(S)R
b, -NR
bC(O)O
-, -NR
bC(O)OR
b, -NR
bC(S)OR
b, -NR
bC( O)NR
cR
c, -NR
bC(NR
b)R
b and -NR
bC(NR
b)NR
cR
c, where R
a is selected from the group consisting of alkyl, substituted alkyl, arylalkyl, alkyldiyl,
substituted alkyldiyl, aryl, substituted aryl, arylalkyl, substituted arylalkyl, heteroalkyl,
substituted heteroalkyl, heteroalkyldiyl, substituted heteroalkyldiyl, heteroaryl,
substituted heteroaryl, heteroarylalkyl substituted heteroarylalkyl; each R
b is independently hydrogen or R
a; and each R
c is independently R
b or alternatively, the two R
cs are taken together with the nitrogen atom to which they are bonded form a cycloheteroalkyl
ring which may optionally include from 1 to 4 of the same or different additional
heteroatoms selected from the group consisting of O, N and S. As specific examples,
-NR
cR
c is meant to include -NH
2, -NH-alkyl, N-pyrrolidinyl and N-morpholinyl.
[0056] Similarly, substituent groups useful for substituting unsaturated carbon atoms in
the specified group or radical include, but are not limited to, -R
a,
halo, -O
-, -OR
b, -SR
b, -S
-, -NR
cR
c,
trihalomethyl, -CF
3, -CN, -OCN, -SCN, -NO, -NO
2, -N
3, -S(O)
2R
b, -S(O)
2O
-, -S(O)
2OR
b, -OS (O)
2R
b, -OS(O)
2O
-, -OS(O)
2OR
b, -P(O)(O
-)
2, -P(O)(OR
b)(O
-), -P(O)(OR
b)(OR
b), -C(O)R
b, -C (S)R
b, -C(NR
b)R
b, -C(O)O
-, -C(O)OR
b, -C(S)OR
b, -C(O)NR
cR
c, -C(NR
b)NR
cR
c, -OC(O)R
b, - OC(S)R
b, -OC(O)O
-, -OC(O)OR
b, -OC(S)OR
b, -NR
bC(O)R
b, -NR
bC(S)R
b, -NR
bC(O)O
-, -NR
bC(O)OR
b, -NR
bC(S)OR
b, -NR
bC(O)NR
cR
c, -NR
bC(NR
b)R
b and -NR
bC(NR
b)NR
cR
c, where R
a, R
b and R
c are as previously defined.
[0057] Substituent groups useful for substituting nitrogen atoms in heteroalkyl and cycloheteroalkyl
groups include, but are not limited to, -R
a, -O
-, -OR
b, -SR
b, -S
-, -NR
cR
c, trihalomethyl, -CF
3, -CN, -NO, -NO
2, -S(O)
2R
b, -S(O)
2O
-, -S(O)
2OR
b, -OS(O)
2R
b, -OS(O)
2O
- , -OS(O)
2OR
b, -P(O)(O
-)
2, -P(O)(OR
b)(O
-), -P(O)(OR
b)(OR
b), -C(O)R
b, -C(S)R
b, -C(NR
b)R
b, -C(O)OR
b, -C(S)OR
b, -C(O)NR
cR
c, -C(NR
b)NR
cR
c, -OC(O)R
b, -OC(S)R
b, -OC(O)OR
b, -OC( S)OR
b, -NR
bC(O)R
b, -NR
bC(S)R
b, -NR
bC(O)OR
b, -NR
bC(S)OR
b, -NR
bC(O)NR
cR
c, -NR
bC( NR
b)R
b and -NR
bC(NR
b)NR
cR
c, where R
a, R
b and R
c are as previously defined.
[0058] Substituent groups from the above lists useful for substituting other specified groups
or atoms will be apparent to those of skill in the art.
[0059] The substituents used to substitute a specified group can be further substituted,
typically with one or more of the same or different groups selected from the various
groups specified above.
[0060] "Patient" or "subject" includes, but is not limited to animals such as, for example,
mammals. Preferably, the patient is a human.
[0061] The term "associated with", when used in reference to a disease, condition, symptom,
or disorder (generally or specifically), means a disease, condition, symptom, or disorder
that are connected to one or more factors, such as irregular activity of PKCε. The
connection can be a causal relationship or non-causal relationship.
[0062] "Treating", "treat" or "treatment" of any disease or disorder refers, in some embodiments,
to ameliorating, mitigating or preventing the disease, condition, symptom or disorder
(
i.e., arresting or reducing the development of the disease or at least one of the clinical
symptoms thereof). In other embodiments "treating", "treat" or "treatment" refers
to ameliorating or mitigating at least one physical parameter, which may not be discernible
by the patient. In yet other embodiments, "treating", "treat" or "treatment" refers
to inhibiting the disease, condition, symptom or disorder, either physically, (
e.g., stabilization of a discernible symptom), physiologically, (
e.g., stabilization of a physical parameter) or both. In yet other embodiments, "treating",
"treat" or "treatment" refers to delaying the onset of the disease or disorder. "Preventing"
or "prevention" refers to a reduction in risk of acquiring a disease or disorder (
i.e., causing at least one of the clinical symptoms of the disease not to develop in a
patient that may be exposed to or predisposed to the disease but does not yet experience
or display symptoms of the disease).
[0063] "Pharmaceutically acceptable" means suitable for use in contact with the tissues
of humans and animals without undue toxicity, irritation, allergic response, and the
like, commensurate with a reasonable benefit/risk ratio, and effective for their intended
use within the scope of sound medical judgment.
[0064] The phrases "effective amount" and "amount sufficient to" refer to amounts of a biologically
active agent that produce an intended biological activity.
[0065] "Therapeutically effective amount" means the amount of a compound that, when administered
to a patient for treating a disease, is sufficient to effect such treatment for the
disease. The "therapeutically effective amount" will vary depending on the compound,
the disease and its severity and the age, weight,
etc., of the patient to be treated.
[0066] "Vehicle" refers to a diluent, adjuvant, excipient or carrier with which a compound
is administered.
[0067] Reference will now be made in detail to preferred embodiments of the invention. While
the invention will be described in conjunction with the preferred embodiments, it
will be understood that it is not intended to limit the invention to those preferred
embodiments. To the contrary, it is intended to cover alternatives, modifications,
and equivalents as may be included within the scope of the invention as defined by
the appended claims.
[0068] The terms "protein" and "polypeptide" are used interchangeably herein to refer a
polymer of amino acids, and unless otherwise limited, include atypical amino acids
that can function in a similar manner to naturally occurring amino acids.
[0069] The term "receptor" refers to a molecule or complex of molecules, typically (although
not necessarily) a protein(s), that is specifically bound by one or more particular
ligands. The receptor is said to be a receptor for such ligand(s). Ligand-receptor
binding, in many instances, induces one or more biological responses.
[0070] A "modulator" of a polypeptide is either an inhibitor or an enhancer of an action
or function of the polypeptide. Similarly, a "modulator" of a signaling pathway is
an inhibitor or enhancer of at least one function mediated by the signaling pathway.
Aspects of modulators are defined below with respect to polypeptides; however, those
of skill in the art readily appreciate that these definitions also apply to signaling
pathways.
[0071] A "non-selective" modulator of a polypeptide (e.g., PKCε) is an agent that modulates
other members of the same family of polypeptides (e.g., other PKCs) at the concentrations
typically employed for modulation of the particular polypeptide.
[0072] A "selective" modulator of a polypeptide significantly modulates the particular polypeptide
at a concentration at which other members of the same family of polypeptides are not
significantly modulated.
[0073] A modulator "acts directly on" a polypeptide when the modulator exerts its action
by interacting directly with the polypeptide.
[0074] A modulator "acts indirectly on" a polypeptide when the modulator exerts its action
by interacting with a molecule other than the polypeptide, which interaction results
in modulation of an action or function of the polypeptide.
[0075] An "inhibitor" or "antagonist" of a polypeptide is an agent that reduces, by any
mechanism, any action or function of the polypeptide, as compared to that observed
in the absence (or presence of a smaller amount) of the agent. An inhibitor of a polypeptide
can affect: (1) the expression, mRNA stability, protein trafficking, modification
(e.g., phosphorylation), or degradation of a polypeptide, or (2) one or more of the
normal action or functions of the polypeptide. An inhibitor of a polypeptide can be
non-selective or selective. Preferred inhibitors (antagonists) are generally small
molecules that act directly on, and are selective for, the target polypeptide.
[0076] A "reversible" inhibitor is one whose effects can be reversed (i.e., one that does
not irreversibly inactivate the target polypeptide).
[0077] A "competitive" inhibitor of a polypeptide is one that competes for binding to the
polypeptide with another component required for polypeptide function. For example,
PKCε function requires the binding of ATP (adenosine triphosphate) and substrate.
Accordingly, a competitive inhibitor of PKCε can act, for example, by binding at the
ATP or substrate binding sites. This inhibition is generally reversible by increasing
the concentration of ATP or substrate to the reaction mixture. Such an inhibitor is
said to inhibit PKCε competitively with respect to ATP or substrate, respectively.
[0078] A "non-competitive" inhibitor of a polypeptide generally binds the polypeptide at
a site other than the binding site of another component required for polypeptide function.
This inhibition cannot be reversed by increasing the concentration of component(s)
required for polypeptide function.
[0079] An "enhancer" or "activator" or "agonist" is an agent that increases, by any mechanism,
any polypeptide action or function, as compared to that observed in the absence (or
presence of a smaller amount) of the agent. An enhancer of a polypeptide can affect:
(1) the expression, mRNA stability, protein trafficking, modification (e.g., phosphorylation),
or degradation of a polypeptide, or (2) one or more of the normal actions or functions
of the polypeptide. An enhancer of a polypeptide can be non-selective or selective.
Preferred enhancers (agonists) are generally small molecules that act directly on,
and are selective for, the target polypeptide.
[0080] As used herein, an "allosteric modulator" of an polypeptide, typically an enzyme
or receptor, is a modulator that binds at a location other than the active site of
the target polypeptide, altering activity by inducing an allosteric change in the
shape of the target polypeptide.
[0081] The term "specific binding" is defined herein as the preferential binding of binding
partners to another (e.g., two polypeptides, a polypeptide and nucleic acid molecule,
or two nucleic acid molecules) at specific sites. The term "specifically bind(s)"
indicates that the binding preference (e.g., affinity) for the target molecule/sequence
is at least 2-fold, more preferably at least 5-fold, and most preferably at least
10- or 20-fold over a non-specific target molecule (e.g. a randomly generated molecule
lacking the specifically recognized site(s)).
[0082] The term "in combination with", "co-administer" or "co-administering", when used
in reference to administration of the presnet compound and other active agent(s),
means that the present compound and other active agent(s) are administered to a patient
in a coordinated fashion. For example, the present compound and other active agent(s)
are administered in such a way that there is at least some chronological overlap in
their physiological activity on the subject. Thus, a compound of the present invention
can be administered simultaneously and/or sequentially with another agent. In sequential
administration, there may even be some substantial delay (e.g., minutes or even hours
or days) before administration of the second agent as long as the first administered
agent is exerting some physiological effect on the organism when the second administered
agent is administered or becomes active in the subject.
[0083] The term "reducing pain" or "reduce(s) pain" as used herein, refers to decreasing
the level of pain a subject perceives relative to the level of pain the subject would
have perceived were it not for the intervention. Where the subject is a person, the
level of pain the person perceives can be assessed by asking him or her to describe
the pain or compare it to other painful experiences. Alternatively, pain levels can
be determined by measuring the subject's physical responses to the pain, such as the
release of stress-related factors or the activity of pain-transducing nerves in the
peripheral nervous system or the CNS. One can also determine pain levels by measuring
the amount of a well-characterized analgesic required for a person to report that
no pain is present or for a subject to stop exhibiting symptoms of pain. A reduction
in pain can also be measured as an increase in the threshold at which a subject experiences
a given stimulus as painful. In certain embodiments, a reduction in pain is achieved
by decreasing "hyperalgesia," the heightened sensitivity to a noxious stimulus, and
such inhibition can occur without impairing "nociception," the subject's normal sensitivity
to a "noxious" stimulus. The pain is due to a condition selected from the group consisting
of, but not limited to, causalgia, diabetes, collagen vascular disease, trigeminal
neuralgia, spinal cord injury, brain stem injury, thalamic pain syndrome, complex
regional pain syndrome type I/reflex sympathetic dystrophy, Fabry's syndrome, small
fiber neuropathy, cancer, cancer chemotherapy, chronic alcoholism, stroke, abscess,
demyelinating disease, viral infection, anti-viral therapy, AIDS, AIDS therapy, burn,
sunburn, arthritis, colitis, carditis, dermatitis, myositis, neuritis, mucositis,
urethritis, cystitis, gastritis, pneumonitis, collagen vascular disease, trauma, surgery,
amputation, toxin, chemotherapy, fibromyalgia, irritable bowel syndrome, migraine,
anxiety, skeletal muscle spasms, convulsive seizures, epilepsy, a temporomandibular
disorder or a combination thereof.
[0084] As used with reference to pain reduction, "a subject in need thereof" refers to an
animal or person, preferably a person, expected to experience pain in the near future.
Such animal or person may have an ongoing condition that is causing pain currently
and is likely to continue to cause pain. Alternatively, the animal or person has been,
is, or will be enduring a procedure or event that usually has painful consequences.
Chronic painful conditions such as diabetic neuropathic hyperalgesia and collagen
vascular diseases are examples of the first type; dental work, particularly that accompanied
by inflammation or nerve damage, and toxin exposure (including exposure to chemotherapeutic
agents) are examples of the latter type.
[0085] "Inflammatory pain" refers to pain arising from inflammation. Inflammatory pain often
manifests as increased sensitivity to mechanical stimuli (mechanical hyperalgesia
or tenderness). For examples, inflammatory pain is due to a condition selected from
the group consisting of: burn, sunburn, arthritis, colitis, carditis, dermatitis,
myositis, neuritis, mucositis, urethritis, cystitis, gastritis, pneumonitis, and collagen
vascular disease.
[0086] "Neuropathic pain" refers to pain arising from conditions or events that result from
damage to or dysfunction of the peripherial or central nervous system. "Neuropathy"
refers to a disease process resulting in damage to nerves. "Causalgia" denotes a state
of chronic pain following nerve injury. "Allodynia" refers to a condition in which
a person experiences pain in response to a normally nonpainful stimulus, such as a
gentle touch. For examples, neuropathic pain is or is due to a condition or event
selected from the group consisting of: postherpetic neuralgia, root avulsions, painful
traumatic mononeuropathy, painful polyneuropathy (particularly due to diabetes), central
pain syndromes (potentially caused by virtually any lesion at any level of the nervous
system), postsurgical pain syndromes (eg, postmastectomy syndrome, postthoracotomy
syndrome, phantom pain (pain felt in the region of an amputated body part)), complex
regional pain syndrome (reflex sympathetic dystrophy and causalgia), collagen vascular
disease, trigeminal neuralgia, spinal cord injury, brain stem injury, thalamic pain
syndrome, Fabry's syndrome, small fiber neuropathy, cancer, cancer chemotherapy, alcoholism,
chronic alcohol use or abuse, stroke, abscess, demyelinating disease, viral infection,
anti-viral therapy, AIDS, AIDS therapy, tissue injury, dysesthesia (eg, burning, tingling),
mononeuropathies (eg, carpal tunnel syndrome, radiculopathy), plexopathies (typically
caused by nerve compression, as by a neuroma, tumor, or herniated disk), and polyneuropathies
(typically caused by various metabolic neuropathies). Neuropathic pain is due to an
agent selected from the group consisting of: trauma, surgery, amputation, toxin, and
chemotherapy.
[0087] As used herein, the term "generalized pain disorder" refers to a group of idiopathic
pain syndromes (e.g., fibromyalgia, irritable bowel syndrome, and temporomandibular
disorders), for which the pathogenic mechanism is currently unknown or unclear or
with controversial explanations, characterized by diffuse or generalized pain, and
for which a diagnosis of inflammation or neuropathy as the direct cause of pain is
excluded.
[0088] An "analgesic agent" refers to a molecule or combination of molecules that causes
a reduction in pain.
[0089] A "neuroleptic" refers to a class of tranquilizing drugs, used to treat psychotic
conditions, that modulate neurotransmitter activity in the central nervous system
and can act by modulating acetylcholine, dopamine, norepinephrine, serotonin, or γ-aminobutyric
acid (GABA) transmission.
[0090] The term "neurosteroid" refers to a class of steroids, the natural forms of which
are produced by cells of the central or peripheral nervous systems, independently
of the steroidogenic activity of the endocrine glands. Neurosteroids are derived from
cholesterol, and examples of neurosteroids include 3α,5α-tetrahydroprogesterone, 3α,5β-tetrahydroprogesterone,
and 3α,5α-tetrahydrodeoxycorticosterone. For examples, ganaxalone and alphaxalone.
[0091] The difference between "acute" and "chronic" pain is one of timing: acute pain is
experienced soon (e.g., generally within about 48 hours, more typically within about
24 hours, and most typically within about 12 hours) after the occurrence of the event
(such as inflammation or nerve injury) that led to such pain. By contrast, there is
a significant time lag between the experience of chronic pain and the occurrence of
the event that led to such pain. Such time lag is generally at least about 48 hours
after such event, more typically at least about 96 hours after such event, and most
typically at least about one week after such event. The chronic pain usually lasts
for days, weeks, months or even years.
[0092] The term "maladaptive substance use" refers to the use of any substance that results
in adverse consequences for the user that outweigh any benefits derived from the substance.
Substances that are used in a maladaptive manner are generally consumed or administered
(usually self-administered) to the body, by any route of administration, to produce
an effect on the body that the user generally experiences as pleasurable. The substance
can be a single substance (cocaine, for example) or a type of substance (e.g., food,
in general). The adverse consequences can include, for example, adverse effects on
health, the ability to care for oneself, the ability to form and maintain human relationships,
and/or the ability to work. The adverse consequences are generally significant enough
that the user would like to control, reduce, or end substance use or, alternatively,
the user's family members and/or friends would like to see the user control, reduce,
or end substance use. Maladaptive substance use can include uncontrollable craving
for the substance; substance dependence, including psychological and/or physical dependence;
and maladaptive substance use; as well as any of the individual symptoms of substance
dependence and/or abuse listed below.
[0093] A "symptom of maladaptive substance use" includes any symptom arising from maladaptive
substance use. Thus, a symptom of maladaptive substance use arises from the previous,
and/or ongoing, use of a substance. Examples include, but are not limited to, elevated
drug reward, incentive salience for the drug, drug craving, drug preference, drug
seeking, and drug consumption, as compared to that in a normal population (i.e., one
that is not using the substance in a maladaptive manner), as well as any of the individual
symptoms of substance dependence and/or abuse listed below.
[0094] "Substance dependence" includes a maladaptive pattern of substance use, leading to
clinically significant impairment or distress, as manifested by three (or more) of
the following symptoms, occurring at any time in the same 12-month period: (1) Tolerance,
as defined by either of the following: (a) a need for markedly increased amounts of
the substance to achieve intoxication or desired effect, or (b) markedly diminished
effect with continued use of the same amount of the substance; (2) Withdrawal, as
manifested by either of the following: (a) the characteristic withdrawal syndrome
for the substance, or (b) the same (or closely related) substance is taken to relieve
or avoid withdrawal symptoms; (3) The substance is often taken in larger amounts or
over a longer period than was intended; (4) There is a persistent desire or unsuccessful
efforts to cut down or control substance use; (5) A great deal of time is spent in
activities necessary to obtain the substance (e.g., visiting multiple doctors or driving
long distances), use the substance (e.g., chain-smoking), or recover from its effects;
(6) Important social, occupational, or recreational activities are given up or reduced
because of substance use; and (7) The substance use is continued despite knowledge
of having a persistent or recurrent physical or psychological problem that is likely
to have been caused or exacerbated by the substance (e.g., current cocaine use despite
recognition of cocaine-induced depression, or continued drinking despite recognition
that an ulcer was made worse by alcohol consumption). (See
American Psychiatric Association, Diagnostic Criteria for DSM-IV, Washington DC, APA,
1994.) "Substance dependence" includes a maladaptive pattern of substance use, leading
to clinically significant impairment or distress, as manifested by three (or more)
of the following symptoms, occurring at any time in the same 12-month period: (1)
Tolerance, as defined by either of the following: (a) a need for markedly increased
amounts of the substance to achieve intoxication or desired effect, or (b) markedly
diminished effect with continued use of the same amount of the substance; (2) Withdrawal,
as manifested by either of the following: (a) the characteristic withdrawal syndrome
for the substance, or (b) the same (or closely related) substance is taken to relieve
or avoid withdrawal symptoms; (3) The substance is often taken in larger amounts or
over a longer period than was intended; (4) There is a persistent desire or unsuccessful
efforts to cut down or control substance use; (5) A great deal of time is spent in
activities necessary to obtain the substance (e.g., visiting multiple doctors or driving
long distances), use the substance (e.g., chain-smoking), or recover from its effects;
(6) Important social, occupational, or recreational activities are given up or reduced
because of substance use; and (7) The substance use is continued despite knowledge
of having a persistent or recurrent physical or psychological problem that is likely
to have been caused or exacerbated by the substance (e.g., current cocaine use despite
recognition of cocaine-induced depression, or continued drinking despite recognition
that an ulcer was made worse by alcohol consumption). (See
American Psychiatric Association, Diagnostic Criteria for DSM-IV, Washington DC, APA,
1994.)
[0095] A person is "dependent upon a substance" if such person is determined by a licensed
physician or other appropriate accredited medical personnel to meet the criteria for
substance dependence with respect to such substance.
[0096] "Substance abuse" includes a maladaptive pattern of substance use leading to clinically
significant impairment or distress, as manifested by one (or more) of the following,
occurring within a 12-month period: (1) recurrent substance use resulting in a failure
to fulfill major role obligations at work, school, or home (e.g., repeated absences
or poor work performance related to substance use; substance-related absences, suspensions,
or expulsions from school; neglect of children or household); (2) recurrent substance
use in situations in which it is physically hazardous (e.g., driving an automobile
or operating a machine when impaired by substance use); (3) recurrent substance-related
legal problems (e.g., arrests for substance-related disorderly conduct); and (4) continued
substance use despite having persistent or recurrent social or interpersonal problems
caused or exacerbated by the effects of the substance (e.g., arguments with spouse
about consequences of intoxication, physical fights). (See
American Psychiatric Association, Diagnostic Criteria for DSM-IV, Washington DC, APA,
1994.)
[0097] The terms drug reward, incentive salience for the drug, drug craving, drug preference,
drug seeking, and drug consumption refer to "drugs" because these concepts have generally
been used in the drug dependence/abuse context. However, it should be understood that
these terms, as used herein, also encompass reward, incentive salience, craving, preference,
seeking and consumption of any substance that is used in a maladaptive manner.
[0098] The term "drug reward" refers to the tendency of a drug or substance to cause pleasurable
effects that induce a subject to alter their behavior to obtain more of the drug or
substance.
[0099] The phrase "incentive salience for the drug" refers to a particular form of motivation
to consume a previously experienced drug or substance that results from a hypersensitive
neural state thought to be mediated by dopaminergic systems.
[0100] The term "drug craving" refers to the desire to experience the effects of a previously
experienced drug or substance or to ameliorate the negative symptoms of drug or substance
withdrawal by taking more of a previously experienced drug or substance.
[0101] The term "drug preference" refers to the tendency to consume a drug or substance
that produces pleasurable effects, a opposed than a control substance that does not
produce such effects (drug preference for alcohol can be tested, for example, by allowing
an animal access to two bottles, one containing an alcohol solution, and one containing
water and comparing the amount of each the animal consumes).
[0102] The term "drug seeking" refers to behavior aimed at obtaining a drug or substance,
even in the face of negative health and social consequences. Drug seeking is often
uncontrollable and compulsive.
[0103] "Drug consumption" refers to the amount of drug or substance consumed by a subject
over a selected period of time.
[0104] A "drug of abuse" includes any substance, the excessive consumption or administration
of which can result in a diagnosis of substance dependence or abuse as defined herein
or as defined by the current DSM Criteria promulgated by the American Psychiatric
Association or equivalent criteria. Drugs of abuse include, without limitation, an
opioid, a psychostimulant, a cannabinoid, an empathogen, a dissociative drug, and
ethanol. Thus, for example, heroin, cocaine, methamphetamines, cannabis, 3-4 methylenedioxy-methamphetamine
(MDMA), barbiturates, phencyclidine (PCP), ketamine, and ethanol are all drugs of
abuse, as defined herein.
[0105] The phrase "a drug-related effect" refers to an in vivo effect that occurs in response
to a drug. Exemplary effects include stimulant, sedative, hypnotic, and ataxic effects.
[0106] A "sedative effect" refers to a decrease in activity and/or excitement in a subject.
[0107] A "hypnotic effect" includes an increase in drowsiness and/or a facilitation of the
onset and/or maintenance of sleep.
[0108] An "ataxic effect" refers to a decrease in motor coordination.
[0109] An agent is said to "mitigate" a symptom of maladaptive substance use or a drug-related
effect if the agent inhibits (i.e., reduces or prevents) the symptom or effect.
[0110] A "benzodiazepine" is referred to a agent selected from the group consisting of:
alprazolam, chlordiazepoxide, chlordiazepoxide hydrochloride, chlormezanone, clobazam,
clonazepam, clorazepate dipotassium, diazepam, droperidol, estazolam, fentanyl citrate,
flurazepam hydrochloride, halazepam, lorazepam, midazolam hydrochloride, oxazepam,
prazepam, quazepam, temazepam, and triazolam.
[0111] A "barbiturate" referred to a agent selected from the group consisting of: amobarbital,
amobarbital sodium, aprobarbital, butabarbital sodium, hexobarbital sodium, mephobarbital,
metharbital, methohexital sodium, pentobarbital, pentobarbital sodium, phenobarbital,
phenobarbital sodium, secobarbital, secobarbital sodium, talbutal, thiamylal sodium,
and thiopental sodium.
[0112] The term "composition" as used herein is intended to encompass a product comprising
the specified ingredients in the specified amounts, as well as any product which results,
directly or indirectly, from combination of the specified ingredients in the specified
amounts. Such term in relation to pharmaceutical composition, is intended to encompass
a product comprising the active ingredient(s), and the inert ingredient(s) that make
up the carrier, as well as any product which results, directly or indirectly, from
combination, complexation or aggregation of any two or more of the ingredients, or
from dissociation of one or more of the ingredients, or from other types of reactions
or interactions of one or more of the ingredients. Accordingly, the pharmaceutical
compositions of the present invention encompass any composition made by admixing a
compound of the present invention and a pharmaceutically acceptable carrier. By "pharmaceutically
acceptable" it is meant the carrier, diluent or excipient must be compatible with
the other ingredients of the formulation and not deleterious to the recipient thereof.
[0113] The term "cancer" refers to or describes the physiological condition in mammals that
is typically characterized by unregulated cell growth. Examples of cancer include,
for example, leukemia, lymphoma, blastoma, carcinoma and sarcoma. More particular
examples of such cancers include chronic myeloid leukemia, acute lymphoblastic leukemia,
Philadelphia chromosome positive acute lymphoblastic leukemia (Ph+ALL), squamous cell
carcinoma, small-cell lung cancer, non-small cell lung cancer, glioma, gastrointestinal
cancer, renal cancer, ovarian cancer, liver cancer, colorectal cancer, endometrial
cancer, kidney cancer, prostate cancer, thyroid cancer, neuroblastoma, pancreatic
cancer, glioblastoma multiforme, cervical cancer, stomach cancer, bladder cancer,
hepatoma, breast cancer, colon carcinoma, and head and neck cancer, gastric cancer,
germ cell tumor, pediatric sarcoma, sinonasal natural killer, multiple myeloma, acute
myelogenous leukemia (AML), and chronic lymphocytic leukemia (CML).
[0114] It is to be understood that this invention is not limited to particular methods,
reagents, compounds, compositions, or biological systems, which can, of course, vary.
It is also to be understood that the terminology used herein is for the purpose of
describing particular aspects only, and is not intended to be limiting. As used in
this specification and the appended claims, the singular forms "a", "an", and "the"
include plural referents unless the content clearly dictates otherwise. Thus, for
example, reference to "a compound" includes a combination of two or more compounds
or molecules, and the like.
6.2 Compounds
[0115] Described herein are compounds having structural formula (Ia) or (Ic):

or a salt, solvate, or physiologically functional derivative thereof,
wherein:
X and Y are independently CR1R5, NR1, O or S;
Z1 and Z2 are independently CHR2, NR2, O, or S;
Z3 is CR6 or N;
A1, A2, A3, and A4 are independently CR3 or N;
R1, R2, R3, R4, R5 and R6 are independently hydrogen, halogen, acyl, substituted acyl, alkoxycarbonyl, substituted
alkoxycarbonyl, aryloxycarbonyl, substituted aryloxycarbonyl, - C(O)NR7R8, alkyl, substituted alkyl, cycloheteroalkyl, substituted cycloheteroalkyl, aryl,
substituted aryl, arylalkyl, substituted arylalkyl, heteroaryl, substituted heteroaryl,
heteroarylalkyl, substituted heteroarylalkyl, heteroalkyl, or substituted heteroalkyl;
R7 and R8 are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl,
substituted arylalkyl, heteroaryl, substituted heteroaryl, heteroarylalkyl, substituted
heteroarylalkyl, heteroalkyl or substituted heteroalkyl, or alternatively, R7 and R8, taken together with the nitrogen atom to which they are attached, form a 4-, 5-,
6-, or 7-membered cycloheteroalkyl ring;
with the following provisos:
- (a) at least one of Z1 and Z2 is CHR2 or NR2;
- (b) at least one of A1, A2, A3, and A4 is CR3;
- (c) at least one of R1, R2, R3 and R5 is not hydrogen; and
- (d) when R1 and R5 are independently hydrogen, aryl or substituted aryl; R2 is hydrogen, arylalkyl or substituted arylalkyl; then R3 is not aryl, substituted aryl, heteroaryl, or substituted heteroaryl.
- (e) when R3 is -C(O)NR7R8; R2 is hydrogen or substituted arylalkyl; then at least one of R1 and R5 is not halogen, acyl, substituted acyl, alkoxycarbonyl, substituted alkoxycarbonyl,
alkyl, or substituted alkyl.
- (f) when R3 is -C(O)NR7R8; R7 is hydrogen; R8 is substituted alkyl, arylalkyl, substituted arylalkyl, heteroaryl, heteroalkyl or
substituted aryl; R2 is hydrogen or substituted arylalkyl; then at least one R1 is not halogen, acyl, substituted acyl, alkoxycarbonyl, substituted alkoxycarbonyl,
alkyl, or substituted alkyl.
[0116] In some compounds of formula (Ia) or (Ic), Z
2 is NR
2 and Y is O or.
[0117] In some compounds of formula (Ia) or (Ic), Z
2 is NR
2, Y is O or S, X is CR
1R
5, and Z
1 is O or S.
[0118] In some compounds of formula (Ia), R
5 is hydrogen, alkyl or substituted alkyl, and R
1 is benzyl or substituted benzyl. In some compounds of formula (Ia), the compound
has structural formula (Ih):
wherein, A1, A2, A3, and A4 are the same as defined abvoe in formula (Ia);
Z11 and Y11 are independently O or S;
R2, R11 and R12 are independently hydrogen, halogen, acyl, substituted acyl, alkoxycarbonyl, substituted
alkoxycarbonyl, -C(O)NR7R8, alkyl, substituted alkyl, cycloheteroalkyl, substituted cycloheteroalkyl, aryl,
substituted aryl, arylalkyl, substituted arylalkyl, heteroaryl, substituted heteroaryl,
heteroarylalkyl, substituted heteroarylalkyl, heteroalkyl or substituted heteroalkyl,
or alternatively, R11 and R12, taken together with atoms to which they are attached, form a 4-, 5-, 6-, or 7-membered
cycloalkyl or cycloheteroalkyl ring. It is understood by one skilled in the art that
the wiggled bond has E or Z configuration.
[0119] In some compounds of formula (Ih), R
12 is -C(O)NR
7R
8.
[0120] In some compounds of formula (Ih), A
1, A
2, A
3, and A
4 are CR
3. In some compounds of formula (Ih), A
1, A
2, A
3, and A
4 are CH.
[0122] Compounds listed in Table 1.1 may also be represented by their chemical names as
follows:
| ID |
IUPAC Name |
| 301 |
4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-(3-pyrrolidin-1-ylpropyl)benzamide |
| 303 |
(2Z/2E)-N-(3-azepan-1-ylpropyl)-4-(4-fluorobenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 305 |
N-(3-azepan-1-ylpropyl)-2-{(2Z/2E)-2-[(3-chlorophenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}acetamide |
| 307 |
N-{2-[cyclohexyl(methyl)amino]ethyl}-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}benzamide |
| 309 |
4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}-N-(2-pyrrolidin-1-ylethyl)benzamide |
| 311 |
N-[3-(2-ethylpiperidin-1-yl)propyl]-4-{(Z/E)-[4-(2-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 313 |
N-[3-(4-benzylpiperidin-1-yl)propyl]-2-{(2Z/2E)-2-[(3-chlorophenyl)methylidene]-3-oxo-2,3-dihydro-4H
-1,4-benzothiazin-4-yl} acetamide |
| 315 |
4-{(Z/E)-[4-(3-chlorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-(2-pyrrolidin-1-ylethyl)benzamide |
| 317 |
(2Z/2E)-N-(3-azepan-1-ylpropyl)-4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 319 |
N-[3-(4-benzylpiperidin-1-yl)propyl]-2-{(2Z/2E)-2-[(3-bromo-4-methoxyphenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}acetamide |
| 321 |
4-{(Z/E)-[4-(2,5-dimethylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[3-(2-ethylpiperidin-1-yl)propyl]benzamide |
| 323 |
N-(2-azepan-1-ylethyl)-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 325 |
N-[(1-ethylpyrrolidin-2-yl)methyl]-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}benzamide |
| 327 |
(2Z/2E)-N-[3-(4-benzylpiperidin-1-yl)propyl]-4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 329 |
N-[2-(dimethylamino)ethyl]-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}
benzamide |
| 331 |
N-{3-[cyclohexyl(methyl)amino]propyl}-4-{(Z/E)-[4-(2-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 333 |
N-[3-(4-benzylpiperidin-1-yl)propyl]-2-{(2Z/2E)-2-[(3-bromophenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}acetamide |
| 335 |
(2Z/2E)-N-(2-azepan-1-ylethyl)-4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 337 |
(2Z/2E)-4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-N-(3-pyrrolidin-1-ylpropyl)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 339 |
4-{(Z/E)-[4-(3-chlorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[2-(dibutylamino)ethyl]benzamide |
| 341 |
4-{(Z/E)-[4-(3-chlorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-{3-[cyclohexyl(methyl)amino]propyl}
benzamide |
| 343 |
N-[(1-ethylpyrrolidin-2-yl)methyl]-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 345 |
N-(3-azepan-1-ylpropyl)-2-{(2Z/2E)-2-[(3-bromo-4-methoxyphenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}acetamide |
| 347 |
4-{(Z/E)-[4-(3-chlorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[(1-ethylpyrrolidin-2-yl)methyl]benzamide |
| 349 |
(2Z/2E)-N-{3-[cyclohexyl(methyl)amino]propyl}-4-(4-fluorobenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 351 |
4-{(Z/E)-[4-(3-chlorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[3-(2-ethylpiperidin-1-yl)propyl]benzamide |
| 353 |
N-[3-(dipropylamino)propyl]-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 355 |
(2Z/2E)-N-[3-(2-ethylpiperidin-1-yl)propyl]-4-(4-fluorobenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 357 |
2-{(2Z/2E)-2-[(3-bromophenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}-N-(3-pyrrolidin-1-ylpropyl)acetamide |
| 359 |
(2Z/2E)-N- {3-[cyclohexyl(methyl)amino]propyl} -4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 361 |
N-[3-(2-ethylpiperidin-1-yl)propyl]-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 363 |
4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-(3-pyrrolidin-1-ylpropyl)benzamide |
| 365 |
(2Z/2E)-N-(2-azepan-1-ylethyl)-4-(4-fluorobenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 367 |
(2Z/2E)-4-(4-fluorobenzyl)-N-[3-(3-methylpiperidin-1-yl)propyl]-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 369 |
4-{(Z/E)-[4-(2-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[2-(2-methylpiperidin-1-yl)ethyl]benzamide |
| 371 |
N-(2-azepan-1-ylethyl)-2-{(2Z/2E)-2-[(3-bromo-4-methoxyphenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}acetamide |
| 375 |
N-{3-[benzyl(methyl)amino]propyl}-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 377 |
4-{(Z/E)-[4-(3-chlorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[3-(3-methylpiperidin-1-yl)propyl]benzamide |
| 379 |
N-(2-azepan-1-ylethyl)-4-{(Z/E)-[4-(3-chlorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 381 |
(2Z/2E)-N-[(1-ethylpyrrolidin-2-yl)methyl]-4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 383 |
N-[2-(dipropylamino)ethyl]-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 385 |
(2Z/2E)-N-[3-(3,5-dimethylpiperidin-1-yl)propyl]-4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 387 |
4-{(Z/E)-[4-(2,5-dimethylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[2-(2-methylpiperidin-1-yl)ethyl]benzamide |
| 389 |
(2Z/2E)-N-[(1-ethylpyrrolidin-2-yl)methyl]-4-(4-fluorobenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 391 |
(2Z/2E)-N-[3-(diethylamino)propyl]-4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 393 |
N-{3-[cyclohexyl(methyl)amino]propyl}-4-{(Z/E)-[4-(3-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 395 |
4-{(Z/E)-[4-(2-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-(2-pyrrolidin-1-ylethyl)benzamide |
| 397 |
N-(2-azepan-1-ylethyl)-2-{(2Z/2E)-2-[(3-chlorophenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}
acetamide |
| 399 |
2-{(2Z/2E)-2-[(3-chlorophenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}-N-[3-(2-ethylpiperidin-1-yl)propyl]acetamide |
| 201 |
(2Z/2E)-4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-N-(2-pyrrolidin-1-ylethyl)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 203 |
(2Z/2E)-N-{2-[4-(2-fluorophenyl)piperazin-1-yl]ethyl}-2-[2-(4-methoxyphenyl)-2-oxoethylidene]-3-oxo-1,2,3,4-tetrahydroquinoxaline-6-carboxamide |
| 205 |
(2Z/2E)-N-[3-(2,6-dimethylpiperidin-1-yl)propyl]-4-(3-methylbenzyl)-3-oxo-2-(phenylmethylidene)-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 207 |
2-{(2Z/2E)-2-[(3-bromophenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}-N-[(1-ethylpyrrolidin-2-yl)methyl]acetamide |
| 209 |
4-{(Z/E)-[4-(2-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[3-(3-methylpiperidin-1-yl)propyl]benzamide |
| 211 |
N-[2-(dipropylamino)ethyl]-4-{(Z/E)-[4-(2-methylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 213 |
2-{(2Z/2E)-2-[(3-bromophenyl)methylidene]-3-oxo-2,3-dihydro-4H-1,4-benzothiazin-4-yl}-N-(2-pyrrolidin-1-ylethyl)acetamide. |

or a salt, solvate, or physiologically functional derivative thereof.
[0123] Compounds listed in Table 1.2 may also be represented by their chemical names as
follows:
| ID |
IUPAC Name |
| 421 |
4-{(Z/E)-[4-(4-chlorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}-N-methylbenzamide |
| 423 |
4-{(Z/E)-[4-(4-chlorobenzyl)-3-thioxo-3,4-dihydro-2H-pyrido[4,3-b][1,4]oxazin-2-ylidene]methyl}-N-methylbenzamide |
| 425 |
N-methyl-4-[(Z/E)-(4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene)methyl]benzamide |
| 427 |
N-methyl-4-[(1Z/1E)-1-(4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene)-2-phenylethyl]benzamide |
| 429 |
N-methyl-4-[(1Z/1E)-1-(4-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene)-3-phenylpropyl]benzamide |
| 431 |
N-methyl-4-[(1Z/1E)-1-(4-methyl-3-oxo-3,4-dihydroquinoxalin-2(1H)-ylidene)-3-phenylpropyl]benzamide |
| 433 |
N-methyl-4-[(1Z/1E)-1-(4-methyl-3-oxo-3,4-dihydroquinoxalin-2(1H)-ylidene)-2-phenylethyl]benzamide |
| 435 |
4-{(Z/E)-[4-(cyclohexylmethyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}-N-[2-(2-methylpiperidin-1-yl)ethyl]benzamide |
| 437 |
4-{(Z/E)-[4-(cyclohexylmethyl)-3-oxo-3,4-dihydropyrido[3,4-b]pyrazin-2(1H)-ylidene]methyl}-N-[2-(2-methylpiperidin-1-yl)ethyl]benzamide |
| 439 |
4-{(Z/E)-[1-(cyclohexylmethyl)-2-thioxo-1,2-dihydro-3H-pyrido[2,3-b][1,4]oxazin-3-ylidene]methyl}-N-[2-(2-methylpiperidin-1-yl)ethyl]benzamide |
| 441 |
4-{[(2Z/2E)-1-benzyl-2-ethylidene-3-oxo-1,2,3,4-tetrahydroquinolin-4-yl]methyl}-N-[2-(piperidin-1-yl)ethyl]benzamide |
| 443 |
4-{[(2Z/2E)-1-benzyl-2-ethylidene-3-oxo-1,2,3,4-tetrahydro-1,5-naphthyridin-4-yl]methyl}-N-[2-(piperidin-1-yl)ethyl]benzamid |
| 445 |
4-{[(6E/6Z)-5-benzyl-6-ethylidene-7-oxo-5,6,7,8-tetrahydroquinolin-8-yl]methyl}-N-[2-(piperidin-1-yl)ethyl]benzamide |
| 447 |
4-{[(6E/6Z)-5-benzyl-6-ethylidene-7-thioxo-5,6,7,8-tetrahydroquinolin-8-yl]methyl}-N-[2-(piperidin-1-yl)ethyl]benzamide |
| 449 |
4-{[(3E/3Z)-4-(cyclohexylmethyl)-3-ethylidene-2-oxo-3,4-dihydroquinolin-1(2H)-yl]methyl}-N-[2-(piperidin-1-yl)ethyl]benzamide |
| 451 |
(2Z/2E)-2-benzylidene-N-[3-(2-ethylpiperidin-1-yl)propyl]-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 453 |
4-benzyl-N-[3-(2-ethylpiperidin-1-yl)propyl]-2-imino-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 455 |
4-benzyl-N-[3-(2-ethylpiperidin-1-yl)propyl]-2-imino-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxamide |
| 457 |
(2Z/2E)-2-benzylidene-N-[3-(2-ethylpiperidin-1-yl)propyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxamide |
| 459 |
(3Z/3E)-3-benzylidene-N-[3-(2-ethylpiperidin-1-yl)propyl]-2-oxo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-7-carboxamide |
| 461 |
(3Z/3E)-3-benzylidene-N-[3-(2-ethylpiperidin-1-yl)propyl]-2-oxo-2,3-dihydro-1H-pyrido[3,4-b][1,4]oxazine-7-carboxamide |
| 463 |
(3Z/3E)-3-benzylidene-N-[3-(2-ethylpiperidin-1-yl)propyl]-2-oxo-2,3-dihydro-1H-pyrido[3,4-b][1,4]thiazine-7-carboxamide |
| 465 |
(2Z/2E)-4-benzyl-2-ethylidene-N-[3-(2-ethylpiperidin-1-yl)propyl]-3-oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 467 |
(3Z/3E)-1-benzyl-3-ethylidene-N-[3-(2-ethylpiperidin-1-yl)propyl]-2-oxo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-7-carboxamide |
| 469 |
(3Z/3E)-1-(cyclohexylmethyl)-3-ethylidene-N-[3-(2-ethylpiperidin-1-yl)propyl]-2-oxo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-7-carboxamide |
| 471 |
(3Z/3E)-1-(cyclohexylmethyl)-3-ethylidene-N-[3-(piperidin-1-yl)propyl]-2-thioxo-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine-7-carboxamide |
| 473 |
(2Z/2E)-4-(cyclohexylmethyl)-2-ethylidene-3-imino-N-[3-(piperidin-1-yl)propyl]-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 475 |
(2Z/2E)-4-benzyl-2-ethylidene-3-imino-N-[3-(piperidin-1-yl)propyl]-3,4-dihydro-2H-1,4-benzothiazine-6-carboxamide |
| 477 |
(3Z/3E)-3-ethylidene-4-(4-fluorobenzyl)-2-oxo-N-[3-(piperidin-1-yl)propyl]-3,4-dihydro-2H-1,4-benzothiazine-7-carboxamide |
| 479 |
(3Z/3E)-3-ethylidene-4-(4-fluorobenzyl)-N-[3-(piperidin-1-yl)propyl]-2-thioxo-3,4-dihydro-2H-1,4-benzoxazine-7-carboxamide |
| 481 |
4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[3-(pyrrolidin-1-yl)propyl]benzamide |
| 483 |
4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}-N-[3-(pyrrolidin-1-yl)propyl]benzamide hydrate |
| 485 |
N-[3-(azepan-1-yl)propyl]-4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 801 |
4-[(Z/E)- {3 -oxo-4- [2-(trifluoromethyl)benzyl] -3,4-dihydro-2H- 1 ,4-benzoxazin-2-ylidene}methyl]-N-[3-(pyrrolidin-1-yl)propyl]benzamide |
| 803 |
4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[3-(4-methyl-1H-pyrazol-1-yl)propyl]benzamide |
| 805 |
4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-{[2-(pyrrolidin-1-yl)cyclopropyl]methyl}benzamide |
| 807 |
4-{(Z/E)-[4-(4-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-{3-[4-(pyridin-4-yl)piperazin-1-yl]propyl}benzamide |
| 809 |
4-{(Z/E)-[4-(3-ethylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[4-(piperidin-1-yl)phenyl]benzamide |
| 811 |
N-[3-(azepan-1-yl)propyl]-4-{(Z/E)-[4-(1,3-benzodioxol-5-ylmethyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}benzamide |
| 813 |
N-cyclohexyl-1-{2-[({4-[(Z/E)-{3-oxo-4-[2-(trifluoromethyl)benzyl]-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene}methyl]phenyl}carbonyl)amino]ethyl}piperidine-4-carboxamide |
| 815 |
(2Z/2E)-4-(2-fluorobenzyl)-2-({1-oxo-2-[3-(pyrrolidin-1-yl)propyl]-1,2-dihydroisoquinolin-6-yl}methylidene)-2H-1,4-benzoxazin-3(4H)-one |
| 817 |
4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}-N-(octahydroisoquinolin-2(1H)-ylmethyl)benzamide |
| 819 |
N-[(4-cyclohexylpiperidin-1-yl)methyl]-4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}benzamide |
| 821 |
N-[3-(azepan-1-yl)propyl]-4-{(1Z/1E)-1-[4-(4-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]
ethyl } benzamide |
| 823 |
N-[3-(azepan-1-yl)propyl]-4-{(Z/E)-[4-(3-benzylbenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}benzamide |
| 825 |
4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-[3-(pyridin-4-yl)propyl]benzamide |
| 827 |
4-[(1Z/1E)-1-{4-[4-(morpholin-4-yl)benzyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene}ethyl]-N-[3-(morpholin-4-yl)propyl]benzamide |
| 829 |
N-4-{(1Z/1E)-1-[4-(4-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]ethyl}-N-[3-(morpholin-4-yl)propyl]benzamide |
| 831 |
N-[3-(azepan-1-yl)propyl]-4-[(Z/E)-{4-[2,4-bis(trifluoromethyl)benzyl]-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene}methyl]benzamide |
| 835 |
4-[(Z/E)-(4-benzyl-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene)methyl]-N-[2,3-bis(diethylamino)propyl]benzamide |
| 837 |
4-{(1Z/1E)-1-[4-(2,4-difluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]ethyl}-N-[3-(morpholin-4-yl)propyl]benzamide |
| 839 |
4-{(1Z/1E)-1-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]ethyl}-N-[3-(pyrrolidin-1-yl)propyl]benzamide |
| 841 |
4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-2-ylidene]methyl}-N-methyl-N-[3-(morpholin-4-yl)propyl]benzamide; |
or a salt, solvate, or physiologically functional derivative thereof.
[0124] In some compounds of formula (Ic), Z
2 is NR
2, Y is O or S, and R
4 is -OR
13, -SR
13, NHR
13;

wherein Y
13 is O, S or NH; and R
13 is hydrogen, alkyl, substituted alkyl, cycloheteroalkyl, substituted cycloheteroalkyl,
aryl, substituted aryl, arylalkyl, substituted arylalkyl, heteroaryl, substituted
heteroaryl, heteroarylalkyl, substituted heteroarylalkyl, heteroalkyl or substituted
heteroalkyl.
[0125] In some instances, the compound having a structural formula (Ii) is selected from
the group consisting of Table 1.3.

or a salt, solvate, or physiologically functional derivative thereof.
[0126] Compounds listed in Table 1.3 may also be represented by their chemical names as
follows:
| ID |
IUPAC Name |
| 401 |
4-{[2-(benzylsulfanyl)-4-oxoquinazolin-3(4H)-yl]methyl}-N-(2-phenylethyl)cyclohexanecarboxamide |
| 403 |
4-{[3-(benzylamino)-1-oxo-2,6-naphthyridin-2(1H)-yl]methyl}-N-(2-phenylethyl)cyclohexanecarboxamide |
| 405 |
4-{[-oxo-3-(2-phenylethyl)-2,6-naphthyridin-2(1H)-yl]methyl}-N-(2-phenylethyl)cyclohexanecarboxamide |
| 407 |
4-{[3-(benzylsulfanyl)-1-oxoisoquinolin-2(1H)-yl]methyl}-N-methylcyclohexanecarboxamide |
| 409 |
N-methyl-4-{[1-oxo-3-(2-phenylethyl)isoquinolin-2(1H)-yl]methyl}cyclohexanecarboxamide |
| 411 |
4-{[3-(benzylamino)-1-oxo-2,6-naphthyridin-2(1H)-yl]methyl}-N-methylcyclohexanecarboxamide |
| 413 |
N-benzyl-4-{[2-(benzylsulfanyl)-4-oxoquinazolin-3(4H)-yl]methyl}cyclohexanecarboxamide |
| 415 |
4-{[2-(benzylsulfanyl)-4-oxoquinazolin-3(4H)-yl]methyl}-N-methylcyclohexanecarboxamide |
| 417 |
4-({3-[(cyclohexylmethyl)amino]-1-oxo-2,6-naphthyridin-2(1H)-yl}methyl)-N-methylcyclohexanecarboxamide |
| 419 |
4-({2-[(cyclohexylmethyl)amino]-4-thioxoquinazolin-3(4H)-yl}methyl)-N-methylcyclohexanecarboxamide. |
[0127] Described herein is a compound of the present invention having a structural formula
(II),

or a salt, solvate, or physiologically functional derivative thereof,
wherein:
A is N or CH;
B is a 5-, 6-, or 7-membered cycloalkyl, substituted cycloalkyl, cycloheteroalkyl,
substituted cycloheteroalkyl, aryl, substituted aryl, heteroaryl, or substituted heteroaryl
ring;
D is NR4, S, or O;
R1, R2, R3, and R4 are independently hydrogen, halogen, acyl, substituted acyl, alkoxycarbonyl, substituted
alkoxycarbonyl, aryloxycarbonyl, substituted aryloxycarbonyl, - C(O)NR5R6, alkyl, substituted alkyl, cycloheteroalkyl, substituted cycloheteroalkyl, aryl,
substituted aryl, arylalkyl, substituted arylalkyl, heteroaryl, substituted heteroaryl,
heteroarylalkyl, substituted heteroarylalkyl, heteroalkyl, or substituted heteroalkyl;
R5 and R6 are independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl,
substituted arylalkyl, heteroaryl, substituted heteroaryl, heteroarylalkyl, substituted
heteroarylalkyl, heteroalkyl or substituted heteroalkyl, or alternatively, R5 and R6, taken together with the nitrogen atom to which they are attached, form a 4-, 5-,
6-, or 7-membered cycloheteroalkyl ring;
X is -CH2-, -CH2-O-, -CH2-S-, -O- or -S-.
[0128] In one instance, the compound having a structural formula (II) does not include the
compounds listed above, while in another instance, the compound having a structural
formula (II) includes the compounds listed above.
[0129] In some compounds of formula (II), A is N; and D is O.
[0130] In some compounds of formula (II), A is N, D is O, and R is benzyl or substituted
benzyl.
[0131] In some compounds of formula (II), the B ring is a cycloheteroalkyl or a substituted
cycloheteroalkyl ring. In some compounds of formula (II), the compound has structural
formula (IIa),

wherein:
R1, R2 and X have same definitions as in formula (II);
Z1 and Z2 are independently CR12 and N;
R11 and R13 independently represent one or multiple substituents. R11 and R13 are independently selected from hydrogen, halogen, acyl, substituted acyl, alkoxycarbonyl,
substituted alkoxycarbonyl, aryloxycarbonyl, substituted aryloxycarbonyl, -C(O)NR5R6, alkyl, substituted alkyl, cycloheteroalkyl, substituted cycloheteroalkyl, aryl,
substituted aryl, arylalkyl, substituted arylalkyl, heteroaryl, substituted heteroaryl,
heteroarylalkyl, substituted heteroarylalkyl, heteroalkyl, or substituted heteroalkyl;
and
R12 is selected from hydrogen, alkyl, substituted alkyl.
[0132] In some compounds of formula (IIa), R
1 is -C(O)NHR
5, wherein the preferred amine, i.e., -NHR
5, is derived from a group consisted of, but not limited to:

wherein each of the ring with dotted line (in A7, A8, A9 or A10) represents a 5-,
6-, or 7-membered cycloalkyl, substituted cycloalkyl, heterocycloalkyl, substituted
heterocycloalkyl, aryl, substituted aryl, heteroaryl, or substituted heteroaryl ring.
[0133] In some instances, the compound having a structural formula (II) or (IIa) is selected
from the group consisting of Table 2.1:

or a salt, solvate, or physiologically functional derivative thereof.
[0134] Compounds listed in Table 2.1 may also be represented by their chemical names as
follows:
| ID |
IUPAC Name |
| 501 |
N-(3-azepan-1-ylpropyl)-1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 503 |
N-(2-azepan-1-ylethyl)-1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 505 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(3-methylpiperidin-1-yl)propyl]piperidine-4-carboxamide |
| 507 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(2-ethylpiperidin-1-yl)propyl]piperidine-4-carboxamide |
| 509 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[2-(2-methylpiperidin-1-yl)ethyl]piperidine-4-carboxamide |
| 511 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{2-[ethyl(phenyl)amino]ethyl}piperidine-4-carboxamide |
| 513 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{3-[methyl(phenyl)amino]propyl}
piperidine-4-carboxamide |
| 515 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{2-[ethyl(phenyl)amino]ethyl}piperidine-4-carboxamide |
| 517 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{2-[ethyl(phenyl)amino]ethyl}piperidine-3
-carboxamide |
| 519 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{2-[ethyl(phenyl)amino]ethyl}piperidine-3-carboxamide |
| 521 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{3-[methyl(phenyl)amino]propyl}piperidine-3-carboxamide |
| 525 |
N-{3-[benzyl(methyl)amino]propyl}-1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl
}piperidine-4-carboxamide |
| 527 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(3,5-dimethylpiperidin-1-yl)propyl]piperidine-4-carboxamide |
| 529 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{2-[methyl(2-phenylethyl)amino]ethyl}piperidine-4-carboxamide |
| 531 |
1-{[5-methyl-2-(2-methylphenyl)-1,3-oxazol-4-yl]methyl}-N-[3-(3-methylpiperidin-1-yl)propyl]piperidine-4-carboxamide |
| 533 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(3,5-dimethylpiperidin-1-yl)propyl]piperidine-4-carboxamide |
| 535 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(cyclohexylsulfanyl)propyl]piperidine-4-carboxamide |
| 537 |
N-{2-[ethyl(phenyl)amino]ethyl}-1-{[2-(2-fluorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl
}piperidine-4-carboxamide |
| 539 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{2-[methyl(2-phenylethyl)amino]ethyl}piperidine-3-carboxamide |
| 541 |
1-{[5-methyl-2-(3-methylphenyl)-1,3-oxazol-4-yl]methyl}-N-[2-(4-methylpiperidin-1-yl)ethyl]piperidine-4-carboxamide |
| 545 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[2-(4-ethylpiperazin-1-yl)ethyl]piperidine-4-carboxamide |
| 547 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(4-methylpiperazin-1-yl)propyl]piperidine-4-carboxamide |
| 549 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(4-methylpiperazin-1-yl)propyl]piperidine-3-carboxamide |
| 551 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[2-(4-ethylpiperazin-1-yl)ethyl]piperidine-3-carboxamide |
| 553 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-(3-pyrrolidin-1-ylpropyl)piperidine-4-carboxamide |
| 555 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-(3-pyrrolidin-1-ylpropyl)piperidine-4-carboxamide |
| 557 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-(3-pyrrolidin-1-ylpropyl)piperidine-3-carboxamide |
| 559 |
1-{[5-methyl-2-(2-methylphenyl)-1,3-oxazol-4-yl]methyl}-N-{3-[methyl(phenyl)amino]propyl
}piperidine-4-carboxamide |
| 561 |
1-{[2-(3-bromophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(cyclohexylsulfanyl)propyl]piperidine-4-carboxamide |
| 567 |
1-{[5-methyl-2-(4-propoxyphenyl)-1,3-oxazol-4-yl]methyl}-N-(pyridin-3-ylmethyl)piperidine-4-carboxamide |
| 575 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{3-[ethyl(3-methylphenyl)amino]propyl}piperidine-4-carboxamide |
| 577 |
1-{[5-methyl-2-(4-propoxyphenyl)-1,3-oxazol-4-yl]methyl}-N-(pyridin-2-ylmethyl)piperidine-4-carboxamide |
| 579 |
N-{3-[cyclohexyl(methyl)amino]propyl}-1-{[5-methyl-2-(2-methylphenyl)-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 581 |
N-[2-(4-chlorophenyl)ethyl]-1-{[2-(4-ethylphenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 583 |
N-{2-[ethyl(phenyl)amino]ethyl}-1-{[2-(4-ethylphenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 585 |
N-[3-(cyclohexylsulfanyl)propyl]-1-{[5-methyl-2-(2-methylphenyl)-1,3-oxazol-4-yl]methyl}piperidine-3-carboxamide |
| 587 |
N-[2-(4-chlorophenyl)ethyl]-1-{[2-(4-ethylphenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-3-carboxamide |
| 589 |
N-[2-(4-benzylpiperazin-1-yl)ethyl]-2-({[5-methyl-2-(4-methylphenyl)-1,3-oxazol-4-yl]methyl}
sulfanyl)acetamide |
| 595 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-(pyridin-3-ylmethyl)piperidine-4-carboxamide |
| 597 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-(2-pyrrolidin-1-ylethyl)piperidine-4-carboxamide |
| 599 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-(2-pyrrolidin-1-ylethyl)piperidine-4-carboxamide. |
| 901 |
N-[3-(azepan-1-yl)propyl]-1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 903 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(3,5-dimethylpiperidin-1-yl)propyl]piperidine-4-carboxamide |
| 905 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[2-(2-methylpiperidin-1-yl)ethyl]piperidine-4-carboxamide |
| 907 |
N-[3-(4-benzylpiperidin-1-yl)propyl]-1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 909 |
N-{2-[4-(3-chlorophenyl)piperazin-1-yl]ethyl}-1-{[2-(4-ethylphenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 911 |
N-{3-[4-(3-chlorobenzyl)piperidin-1-yl]propyl}-1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methy
}piperidine-4-carboxamide |
| 913 |
1-{[2-(3-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{3-[4-(4-fluorophenyl)piperazin-1-yl]propyl}piperidine-4-carboxamide |
| 915 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{3-[4-(2-fluorophenyl)piperazin-1-yl]propyl} piperidine-3-carboxamide |
| 919 |
N-(2,4-difluorophenyl)-4-{5-methyl-4-[(-yl)methyl]-1,3-oxazol-2-yl} benzamide |
| 929 |
N-[3-(azepan-1-yl)propyl]-1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-methylpiperidine-4-carboxamide |
| 931 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-{3-[4-(pyridin-4-yl)piperidin-1-yl]propyl}piperidine-4-carboxamide |
| 933 |
N-{[2-(azepan-1-yl)cyclopropyl]methyl}-1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 935 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(morpholin-4-yl)propyl]piperidine-4-carboxamide |
| 937 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(4-cyclohexylpiperazin-1-yl)propyl]piperidine-4-carboxamide |
| 939 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(piperidin-1-yl)-2-(piperidin-1-ylmethyl)propyl]piperidine-4-carboxamide |
| 941 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[3-(1,4-dioxa-8-azaspiro[4.5]dec-8-yl)propyl]piperidine-4-carboxamide |
| 943 |
N-[3-(azepan-1-yl)propyl]-1-({5-methyl-2-[4-(trifluoromethyl)phenyl]-1,3-oxazol-4-yl}methyl)piperidine-4-carboxamide |
| 945 |
N-[3-(azepan-1-yl)propyl]-1-{[5-methyl-2-(pyridin-4-yl)-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 947 |
N-[3-(azepan-1-yl)propyl]-1-{[2-(2,4-difluorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 949 |
N-[3-(azepan-1-yl)propyl]-1-{[2-(1,3-benzodioxol-5-yl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 951 |
N-[3-(azepan-1-yl)propyl]-1-{[2-(2,4-dimethoxyphenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 953 |
N-[3-(azepan-1-yl)propyl]-1-{[2-(4-benzylphenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 955 |
N-[3-(azepan-1-yl)propyl]-1-({2-[4-(dimethylcarbamoyl)phenyl]-5-methyl-1,3-oxazol-4-yl}
methyl)piperidine-4-carboxamide |
| 957 |
N-[3-(azepan-1-yl)propyl]-1-({5-methyl-2-[4-(piperidin-1-yl)phenyl]-1,3-oxazol-4-yl}methyl)piperidine-4-carboxamide |
| 959 |
N-[3-(azepan-1-yl)propyl]-1-{[5-methyl-2-(naphthalen-1-yl)-1,3-oxazol-4-yl]methyl}piperidine-4-carboxamide |
| 961 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-(3-{methyl[4-(morpholin-4-yl)benzyl]amino}propyl)piperidine-4-carboxamide |
| 963 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-(3-{[(4-methoxyphenyl)carbonyl]amino}propyl)piperidine-4-carboxamide |
| 965 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-[4-(4-methylpiperazin-1-yl)phenyl]piperidine-4-carboxamide |
| 967 |
N-(1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}piperidin-4-yl)-5-(piperidin-1-yl)pyridin-2-amine |
| 969 |
1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-4-[4-(piperidin-1-yl)phenyl]piperazine. |
[0135] In some compounds of formula (II), the B ring is an aryl, substituted aryl, heteroaryl
or a substituted heteroaryl ring. In some compounds of formula (II), the compound
has structural formula (IIb),

wherein:
R1, R2 and X have the same definitions as in formula (II); and
R11 and R13 independently represent one or multiple substituents. R11 and R13 are independently selected from hydrogen, halogen, acyl, substituted acyl, alkoxycarbonyl,
substituted alkoxycarbonyl, aryloxycarbonyl, substituted aryloxycarbonyl, -C(O)NR5R6, alkyl, substituted alkyl, cycloheteroalkyl, substituted cycloheteroalkyl, aryl,
substituted aryl, arylalkyl, substituted arylalkyl, heteroaryl, substituted heteroaryl,
heteroarylalkyl, substituted heteroarylalkyl, heteroalkyl, or substituted heteroalkyl.
[0136] In some compounds of formula (IIb), R
1 is -C(O)NHR
5, wherein the preferred amine, i.e., -NHR
5, is derived from a group consisted of, but not limited to:

wherein each of the ring with dotted line (in A7, A8, A9 or A10) represents a 5-,
6-, or 7-membered cycloalkyl, substituted cycloalkyl, heterocycloalkyl, substituted
heterocycloalkyl, aryl, substituted aryl, heteroaryl, or substituted heteroaryl ring.
[0137] In some instances, the compound having a structural formula (II) or (IIb) is selected
from the group consisting of Table 2.2.

or a salt, solvate, or physiologically functional derivative thereof.
[0138] Compounds listed in Table 2.2 may also be represented by their chemical names as
follows
| ID |
IUPAC Name |
| 543 |
N-[2-(4-ethylpiperazin-1-yl)ethyl]-4-{5-methyl-4-[(phenylsulfanyl)methyl]-1,3-oxazol-2-yl}benzamide |
| 523 |
4-{5-methyl-4-[(phenylsulfanyl)methyl]-1,3-oxazol-2-yl}-N-[3-(4-methylpiperazin-1-yl)propyl]benzamide |
| 563 |
4-(5-methyl-4-{[(4-methylphenyl)sulfanyl]methyl}-1,3-oxazol-2-yl)-N-[3-(4-methylpiperazin-1-yl)propyl]benzamide |
| 565 |
4-{5-methyl-4-[(phenylsulfanyl)methyl]-1,3-oxazol-2-yl}-N-[3-(4-propylpiperazin-1-yl)propyl]benzamide |
| 569 |
N-(2-azepan-1-ylethyl)-4-(5-methyl-4-{[(4-methylphenyl)sulfanyl]methyl}-1,3-oxazol-2-yl)benzamide |
| 571 |
4-(5-methyl-4-{[(4-methylphenyl)sulfanyl]methyl}-1,3-oxazol-2-yl)-N-[2-(4-methylpiperazin-1-yl)ethyl]benzamide |
| 573 |
N-(2-azepan-1-ylethyl)-4-{5-methyl-4-[(phenylsulfanyl)methyl]-1,3-oxazol-2-yl}benzamide |
| 591 |
4-[5-methyl-4-(phenoxymethyl)-1,3-oxazol-2-yl]-N-[3-(4-methylpiperazin-1-yl)propyl]benzamide |
| 593 |
N-[2-(4-ethylpiperazin-1-yl)ethyl]-4-(5-methyl-4-{[(4-methylphenyl)sulfanyl]methyl}-1,3-oxazol-2-yl)benzamide |
| 917 |
N-{3-[4-(4-fluorophenyl)piperazin-1-yl]propyl}-4-{5-methyl-4-[(4-methylphenoxy)methyl]-1,3-oxazol-2-yl}
benzamide. |
6.3 Synthesis of the Compounds
[0139] Several methods for preparing the compounds of this disclosure are illustrated in
the following Schemes and Examples. Starting materials are made according to procedures
known in the art or as illustrated herein. The following abbreviations are used herein:
Me: methyl; Et: ethyl; t-Bu: tert-butyl; Ar: aryl; Ph: phenyl; Bn: benzyl; BuLi: butyllithium;
Piv: pivaloyl; Ac: acetyl; THF: tetrahydrofuran; DMSO: dimethylsulfoxide; EDC: N-(3-Dimethylaminopropyl)-N'-ethylcarbodiimide;
Boc: tert-butyloxy carbonyl; Et
3N: triethylamine; DCM: dichloromethane; DCE: dichloroethane; DME: dimethoxyethane;
DBA: diethylamine; DAST: diethylaminosulfur trifluoride; EtMgBr: ethylamgnesium bromide;
BSA: bovine serum albumin; TFA: trifluoracetic acid; DMF: N,N-dimethylformamide; SOCl
2: thionyl chloride; CDI: carbonyl diimidazole; rt: room temperature; HPLC: high performance
liquid chromatography; TLC: thin-layer chromatography. The compounds described herein
may be prepared in a variety of ways known to one skilled in the art.
[0140] Some of the compounds described herein can be obtained from commercial sources, such
as Aldrich Chemical Co. (Milwaukee, Wis.), Sigma Chemical Co. (St. Louis, Mo.), Maybridge
(Cornwall, England), Asinex (Winston-Salem, NC), ChemBridge (San Diego, CA ), ChemDiv
(San Diego, CA), SPECS (Delft, The Netherlands), Timtec (Newark, DE) or can be synthesized.
The compounds described herein and other related compounds having different substituents
identified by any of the methods described above can be synthesized using techniques
and materials known to those of skill in the art, such as described, for example,
in
March, ADVANCED ORGANIC CHEMISTRY 4.sup.th Ed., (Wiley 1992);
Carey and Sundberg, ADVANCED ORGANIC CHEMISTY 3.sup.rd Ed., Vols. A and B (Plenum
1992), and
Green and Wuts, PROTECTIVE GROUPS IN ORGANIC SYNTHESIS 2.sup.nd Ed. (Wiley 1991). Starting materials useful for preparing compounds described herein or intermediates
thereof are commercially available or can be prepared by well-known synthetic methods
(see, e.g.,
Harrison et al., "Compendium of Synthetic Organic Methods", Vols. 1-8 (John Wiley
and Sons, 1971-1996); "
Beilstein Handbook of Organic Chemistry," Beilstein Institute of Organic Chemistry,
Frankfurt, Germany;
Feiser et al., "Reagents for Organic Synthesis," Volumes 1-21, Wiley Interscience;
Trost et al., "Comprehensive Organic Synthesis," Pergamon Press, 1991; "
Theilheimer's Synthetic Methods of Organic Chemistry," Volumes 1-45, Karger, 1991;
March, "Advanced Organic Chemistry," Wiley Interscience, 1991;
Larock "Comprehensive Organic Transformations," VCH Publishers, 1989;
Paquette, "Encyclopedia of Reagents for Organic Synthesis," 3d Edition, John Wiley
& Sons, 1995). Other methods for synthesis of the compounds described herein and/or starting materials
are either described in the art or will be readily apparent to the skilled artisan.
Alternatives to the reagents and/or protecting groups may be found in the references
provided above and in other compendiums well known to the skilled artisan. Guidance
for selecting suitable protecting groups can be found, for example, in
Greene & Wuts, "Protective Groups in Organic Synthesis," Wiley Interscience, 1999. Accordingly, the synthetic methods and strategy presented herein are illustrative
rather than comprehensive.
[0141] The procedures described herein for synthesizing the present compounds may include
one or more steps of protection and deprotection (
e.g., the formation and removal of acetal groups). In addition, the synthetic procedures
disclosed below can include various purifications, such as column chromatography,
flash chromatography, thin-layer chromatography (TLC), recrystallization, distillation,
high-pressure liquid chromatography (HPLC) and the like. Also, various techniques
well known in the chemical arts for the identification and quantification of chemical
reaction products, such as proton and carbon-13 nuclear magnetic resonance (
1H and
13C NMR), infrared and ultraviolet spectroscopy (IR and UV), X-ray crystallography,
elemental analysis (EA), HPLC and mass spectroscopy (MS) can be used as well. Methods
of protection and deprotection, purification and identification and quantification
are well known in the chemical arts.

where the amine, i.e., R
5R
6NH, may be, but not limited to, selected from the group consisted of A1 to A10 as
shown below:

B ring or the dotted-ring in A7, A8, A9 and A10 is independently 5-, 6-, or 7-membered
cycloalkyl, substituted cycloalkyl, cycloheteroalkyl, substituted cycloheteroalkyl,
aryl, substituted aryl, heteroaryl, or substituted heteroaryl ring.
A. Synthesis Example 1: Compound 929: N-[3-(azepan-1-yl)propyl]-1-{[2-(4-chlorophenyl)-5-methyl-1,3-oxazol-4-yl]methyl}-N-methylpiperidine-4-carboxamide
[0142]

3-(azepan-1-yl)-N-benzyl-N-methylpropan-1-amine (A-2-1):
[0143] To a mixture of 3-(Azepan-1-yl)propan-1-amine (0.10 g, 0.64 mmole) in methylene chloride
(5 mL) were added benzaldehyde (0.64 mmole) and NaBH(OAc)
3 (0.63 g, 3.0 mmol). The reaction solution was stirred at room temperature for 3h.
Then, paraformaldehyde (200 mg) was added to the reaction mixture and stiring was
continued for 6h. 2N aqueous NaOH (2 mL) was added to quench the reaction, followed
by addion of methylene chloride (30 mL). The organic layer was separated, dried over
anhydrous Na
2SO
4, and filtered. The filtrate was evaporated to supply 3-(azepan-1-yl)-N-benzyl-N-methylpropan-1-amine
(151 mg).
3-(azepan-1-yl)-N-methylpropan-1-amine (A-2-2):
[0144] 3-(Azepan-1-yl)-N-benzyl-N-methylpropan-1-amine (100 mg) was dissolved in MeOH (20
mL) and to the solution was added 10% Pd/C (50 mg). The reaction mixture was shook
under 50 psi hydrogen atmosphere for 2h. The catalyst was filtered over Cellite and
washed with methanol. The filtrated was evaporated to give 3-(azepan-1-yl)-N-methylpropan-1-amine,
used without further purification.
N-(3-(azepan-1-yl)propyl)-1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)-N-methylpiperidine-4-carboxamide:
[0145] To a solution of 1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxylic
acid (
A-3, 70 mg, 0.52 mmole), 3-(azepan-1-yl)-N-methylpropan-1-amine (20 mg) and DIPEA (0.05
mL) in DMF (2 mL) was added EDC (35 mg). The reaction solution was stirred at room
temperature for 12 hours. The reaction was diluted with EtOAc (30 mL). The organic
layer was washed with saturated sodium bicarbonate (10 mL), water (10 mL) and dried
over anhydrous magnesium sulfate. After filtration and concentration, the residue
was purified through chromatography (CH2Cl2:MeOH 10:1) to give N-(3-(azepan-1-yl)propyl)-1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)-N-methylpiperidine-4-carboxamide
(42 mg, 82%). H
1NMR (300 MHz, CDCl
3), ppm: 7.97 (d, 2 H), 7.48 (d, 2 H), 3.80 (m, 1 H), 3.63 (m, 2H), 3.45 (m, 2H), 3.31-3.14
(m, 7 H), 2.75 (s, 3H), 2.44 (m, 4 H), 2.01 (m, 2 H), 1.85 (m, 10 H), 1.30 (m, 2H),
1.26 (m, 2H). MS (ESI+) M/z: 487, 489 (M+H).
B. Synthesis Example 2: Compound 901: N-(3-(azepan-1-yl)propyl)-1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxamide
2-(3-(Azepan-1-yl)propyl)isoindoline-1,3-dion e (B-1-3):
[0147] The mixture of Azepane (2.3 mL), 2-(3-bromopropyl)isoindoline-1,3-dione (5.4 g) and
potassium carbonate (5.5 g) in acetone (50 mL) was stirred at room temperature overnight.
The solid was filtered and the filtrate was concentrated to provide 2-(3-(azepan-1-yl)propyl)isoindoline-1,3-dione,
used without purification.
3-(Azepan-1-yl)propan-1-amine (Cpd A):
[0148] To a solution of 2-(3-(azepan-1-yl)propyl)isoindoline-1,3-dione (3.5 g) in Ethanol
(20 mL) was added hydrazine (0.58 mL). The reaction mixture was reflux for 13h and
then cooled down to room temperature. TFA (2.0 mL) was added, the resulted white solid
was filtered and the solvent was evaporated to give 3-(azepan-1-yl)propan-1-amine,
used without further purification.
Ethyl 1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxylate (B-1-9):
[0149] The mixture of 4-(chloromethyl)-2-(4-chlorophenyl)-5-methyloxazole (1.21 g, 5 mmole,
commercially from Fluorochem) and ethyl piperidine-4-carboxylate (0.81 mL, 1.05 equiv.),
K
2CO
3 (1.03 g, 1.5 equiv) in dioxane was stirred at 70 °C for 2 h. The reaction solution
was cooled to room temperature and the solid was filtered off, rinsed with dichloromethane.
The filtrate was concentrated and the residue was recrystallized from hexane to furnish
Ethyl 1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxylate (1.65
g, 91%).
1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxylic acid (B-1-10):
[0150] Ethyl 1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxylate
(1.0 g, 2.7 mmole) and LiOH (240 mg, 10 mmol) were mixed with MeOH (5 mL), THF (5
ml) and Water (2 mL). The mixture was stirred at 50 °C for 2 h. 4N HCl in dioxane
(3 mL) was added the reaction solution was stirred at room temperature for another
1h. The solvent was removed under vacuum to give 1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxylic
acid as white solid, the crude product was used without purification.
N-(3-(azepan-1-yl)propyl)-1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxamide:
[0151] To a solution of 1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxylic
acid (0.25 g, 0.75 mmole), 3-(Azepan-1-yl)propan-1-amine (0.33 g) and DIPEA (0.32
mL) in DMF (5 mL) was added EDC (0.153 g). The reaction solution was stirred at room
temperature overnight. The solvent removed and EtOAc (100 mL) was added. The organic
layer was washed with saturated sodium bicarbonate (50 mL), water (50 mL) and dried
over anhydrous magnesium sulfate. After filtration, the residue after concentration
of the filtrate was crystallized from EtOAc/Hexane to provide the N-(3-(azepan-1-yl)propyl)-1-((2-(4-chlorophenyl)-5-methyloxazol-4-yl)methyl)piperidine-4-carboxamide
as white solid (0.30 g, 85%). H
1NMR (300 MHz, CDCl
3), ppm: 7.94 (d, 2 H), 7.49 (m, 1 H), 7.39 (d, 2 H), 3.44 (s, 2 H), 3.36 (m, 2H),
2.99 (d, 2 H), 2.67 (m, 4 H), 2.60 (t, 2 H), 2.39 (s, 3 H), 2.07 (m, 3 H), 1.83 (m,
4 H), 1.65 (m, 10 H). MS (ESI+) M/z: 473, 475 (M+H).
C. Sythesis Example 3: Compound 481: 4-{(Z/E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-(3-pyrrolidin-1-ylpropyl)benzamide
[0152] 4-{(Z/
E)-[4-(2-fluorobenzyl)-3-oxo-3,4-dihydro-2H-1,4-benzothiazin-2-ylidene]methyl}-N-(3-pyrrolidin-1-ylpropyl)benzamide
can be similarly synthesized as in Examples 1 and 2, according to the scheme given
below. The
trans (
Z) configuration with H
1NMR (300 MHz, CD
3OD), ppm: 7.94 (d, 2 H), 7.89 (s, 1 H), 7.77 (d, 2 H), 7.36-7.25 (m 2 H), 7.16 (m,
2 H), 7.12-7.02 (m, 4 H), 5.44 (s, 2 H), 3.52 (t, 2 H), 3.30 (m, 4 H), 3.14 (t, 2
H), 2.15-1.98 (m, 6 H). LCMS (ESI+) M/z: 516 (M+H).

6.4 Characterization of Activity of PKCε Inhibitors
[0153] The utility of the compounds in accordance with the present invention as PKCε inhibitors
antagonists may be readily determined without undue experimentation by methodology
well known in the art, including many commercially available and validated bioassays.
Examples are provided below.
6.4.1 in vitro assays for PKCε
[0154] There are many in vitro commercially available and validated bioassays (
Ma, H., et al, Expert Opin Drug Discov. 2008 June; 3(6): 607-621 and references therein) which can be used to characterize the activities of compounds
of the present invention against PKCε protein kinase. Compounds can be tested against
the activity of recombinant PKCε. In a final reaction volume of 25 µL, PKCε (h) (0.4
nM, Human recombinant protein expressed in insect cells. Mw=83.7 kDa) is incubated
with kinase buffer (20 mM HEPES-HCl, pH 7.5, 10 mM MgCl
2, 1 mM EGTA, 0.02% Brij35, 0.1 mM Na
3VO
4, 0.02 mg/ml BSA, 2 mM DTT, and 1% DMSO), 0.1 mg/mL phosphatidylserine, 10 µg/mL diacylglycerol,
20 µM S25-PKC peptide substrate (RFARKGSLRQKNV-OH, Mw=1561 Da), 10 mM MgAcetate and
10 µM [γ-33P-ATP] (specific activity approx. 500 cpm/pmol). The reaction is initiated
by the addition of the MgATP mix. After incubation for 40 minutes at room temperature,
the reaction is stopped by the addition of 5 µL of a 3% phosphoric acid solution.
10 µL of the reaction is then spotted onto a P30 filtermat and washed three times
for 5 minutes in 75 mM phosphoric acid and once in methanol prior to drying and scintillation
counting Control samples are incubated without inhibitor to measure maximal activity
or with the general kinase inhibitor Staurosporine (5 µM) to measure complete inhibition.
For each compound the % inhibition can be calculated by the formula, or by curve fits:
% Inhibition = (Max activity - Activity with compound)/ (Max activity - Activity with
Control)
∗ 100. Compounds with inhibitory activity are assayed using at least 5 concentrations
(1 nM-300 µM). Concentrations are adjusted to generate a complete dose-response curve.
Each sample is assayed in duplicate and each experiment is repeated three times. Results
are fitted by non-linear regression analysis to a sigmoidal dose-response curve with
variable slope to calculate Hill slope, log IC
50 and Imax values for each inhibitor, using the program Prism 5 (GraphPad Software,
Inc., San Diego, CA).
[0155] The above in vitro assay can also be used to measure the initial velocity of the
kinase reaction, varying the concentrations of ATP (1-60 µM) or S25 peptide substrate
(1-500 nM). Values for
km and V
max are calculated for drug- and vehicle-treated samples by linear regression analysis
of double reciprocal Lineweaver Burke plots (see Examples). Samples are assayed in
duplicate and experiments are repeated three times to calculate mean values for
km and Vmax, which is compared for the two treatment conditions (vehicle or compound)
by two-tailed, unpaired
t-tests, and considered significantly different where
P<0.05.
[0156] Kinase profiling was performed using HotSpot technology (Reaction Biology Corp. 11
Malvern, PA, USA). This technology is a radioisotope-based P81 filter-binding assay.
Compound of the present invention were dissolved in pure DMSO to make a 10 mM stock,
then diluted in pure DMSO to make a serial dilution based on the IC50 ranges. PKCε
(h) (0.4 nM, human recombinant protein expressed in insect cells. Mw=83.7 kDa) and
substrate (20 µM peptide substrate, [RFARKGSLRQKNV]) were diluted in the reaction
buffer (20 mM HEPES-HCl, pH 7.5, 10 mM MgCl
2, 1 mM EGTA, 0.02% Brij35, 0.1 mM Na
3VO
4, 0.02 mg/ml BSA, 2 mM DTT, and 1% DMSO), and then 5 nL of compound was delivered
into PKCε (h) and substrate mixture by acoustic technology using Echo 550 (LabCyte
Inc., Sunnyvale, CA). The reaction was initiated by the addition of [γ-33P-ATP] into
the reaction mixture (final concentration was 10 µM) and stopped after at least 40
min incubation at room temperature. The unreacted free 33P-ATP was washed away before
detection.
[0157] The intrinsic PKCε antagonist activity of a compound which may be used in the present
invention may be determined by these assays. In particular, the compounds of the aforementioned
examples, including Tables 1.1, 1.2, 1.3, 2.1 and 2.2 had activity in antagonizing
the PKCε in the aforementioned assays, generally with an IC
50 of less than 25 µM. Preferred compounds within the present invention had activity
in antagonizing the PKCε in the aforementioned assays with an IC
50 of less than 1 µM. Such a result is indicative of the intrinsic activity of the compounds
in use as antagonists of PKCε.
[0158] Examples of compounds described herein having activity in antagonizing the PKCε in
the aforementioned assays with an IC
50 value of in the range of 0.01 to 1 µM include (ID numbers): #481, #483, #485, #597,
#801, #817, #821, #825, #829, #837, #841, #901, #907, #929, #911, #935 and #949.
[0159] The compounds of the present invention have high selectivity in antagonizing the
PKCε while they have little to no activity in inhibiting other members of PKC family
and PKC-related protein kinases. For example, the IC
50 values of compound #481 are higher than 20 µM for the following kinases: PKCalpha,
PKCbeta1, PKCbeta2, PKCdelta, PKCeta, PKCgamma, PKCiota, PKCmu, PKCtheta, PKCzeta,
CDK1/cyclinB, cMET, FYN, MEK1, PDPK1, ROCK1, RSK1, TrkA, Akt1, CAMKIIa_alpha and PKA.
6.4.1 in vivo assays
[0160] Alcohol Intake in Drink-in-Dark (DID)model (
Rhodes JS, et al, Physiol Behav. (2005) 84:53-63). Mice are acclimated in animal facility and housed three to four per cage in standard
cages until 1 week prior to the start of an experiment when they are transferred to
individual housing. Approximately 2 weeks prior to the start of an experiment, the
mice are switched to a reverse light/dark schedule such that lights turned on at 2030
h and off at 0830 h. Food (Purina 5001TM) is always provided ad libitum. Water is
provided ad libitum except when ethanol is substituted for water for 4 h per day.
The animals are divided into 4 groups and given intraperitoneal (i.p.) injections
of vehicle, and a test article (TA) at 5, 20 and 50 mg/kg body weight, respectively,
starting 3 h after lights off in the animal rooms. Then the water bottles are replaced
with 10 ml graduated cylinders fitted with sipper tubes containing 20% (v/v) ethanol
in tap water. The ethanol cylinders remain in place for 4 h. The fluid levels are
checked every 30 minutes for 4 h. After the 4-h period, the ethanol cylinders are
replaced with water bottles. This procedure is repeated 3 times on days at least 2
days apart and each group of mice get a different injection of vehicle, and TA at
5, 20 or 50 mg/kg each time. Similarly, mice are administered with TA by oral gavage
and ethanol or water intake is monitored for 4 h.
[0161] Rotarod Ataxia. This test measures motor incoordination (ataxia) induced by a test article (TA).
The CNS-mediated sedative effects may also be assessed in this rotarod assay. Mice
or rats are trained to remain on the rotarod at 14 rpm for 300 sec and each animal
is retested for its ability to stay on the rotarod rotating at 14 rpm for 300 sec
(baseline). The animal is then administered a single dose of TA, positive control
or vehicle by oral gavage (or i.p. injection). Animals are placed back on the rotarod
at 15, 30, 45, 60, 75 and 90 minutes after treatment. The latency to fall from the
rotarod is recorded for each trial. Each animal is tested twice at each time point.
The ataxia effect of the TA at each time point is estimated as follows: ataxia (%)
= 100 x [1 - {latency in TA treated animal} / {latency in vehicle group}]. Among all
ataxia effects at various time points, the largest one also refers to sedative effect.
Alternatively, this test measures incoordination induced by a moderately intoxicating
dose of alcohol. After administered with TA, the animal is injected with 1.5 g/kg
ethanol i.p. and placed back on the rotarod at 15, 30, 45, 60, 75 and 90 min post-injection.
The latency to fall from the rotarod is recorded for each trial.
[0162] Loss of the righting reflex (LORR). This test measures the hypnotic response to alcohol or TA. LORR duration is measured
by administering ethanol (20% v/v in 0.9% saline) i.p. at 4.0 g/kg. Mice is first
injected i.p. with vehicle or with one dose of TA. After 20 min, mice are tested to
see if they can still right themselves and if they are able, then 4.0 g/kg ethanol
is injected. After ethanol injection, mice are placed on their backs. Loss of the
righting reflex is defined as the animal being unable to right itself 3 times within
a 30-sec period. The mouse is considered to have recovered the righting reflex when
it can right itself 3 times within a 1-min time frame.
[0163] Elevated Plus Maze. This test measures anxiety-like behavior by exploiting the innate conflict in rodents
between exploration of a novel area and aversion to open areas and height. Mice or
rats are examined in a quiet room with normal lighting conditions. The plus maze is
elevated 60 cm off the floor, constructed of wood coated with gloss enamel white paint
with two open arms and two closed arms extending from a central platform. White tape
is placed on the floor to provide traction. The animals are placed on the central
platform facing an open arm and allowed to explore the maze for 5 min. They are tracked
using Ethovision software (Noldus Information Technology, Leesburg, VA, USA). Animals
receive an i.p. injection of vehicle or TA 30 min before testing. The number of open
and closed arm entries and the time spent on each arm are determined to calculate
the percentage of time spent on the open arms and the percentage of entries into the
open arms. Entries into an arm are scored if all four paws of the mice enter the arm.
Data for percentage of arm entries, percentage of time spent in the open arm, and
the number of closed arm entries are compared for the drug- and vehicle-treated groups
using one-way ANOVA with post-hoc Tukey tests. Differences between pairs of mean values
are considered significant where P < 0.05. An increase in the percentage of total
time spent in the open arms or in the percentage of entries into the open arms is
considered evidence for a decrease in anxiety-like behavior. The number of closed
arm entries is examined to control for drug-induced changes in locomotor activity.
[0164] Locomotor Activity in Mice. In this series of experiments, the compound of the present invention can be tested
to see if it is able to attenuate the locomotor stimulant response to ethanol either
given acutely or chronically in female DBA/ 2J mice (Jackson Laboratory West, Palo
Alto, CA). Locomotor activity is measured in automated Accuscan activity monitors
(Accuscan Instruments Inc., Columbus, OH). Mice are housed in each of 2 monitors in
a 40 x 40 x 30 cm (length x width x height) clear acrylic box during testing. Encompassing
chambers provide external sound-attenuation due to foam lining, and a fan further
masks outside noise and provides ventilation. Chambers are illuminated with an 8 W
fluorescent light bulb during testing. The activity monitors have 2 sets of 2, evenly
spaced photocell beams and detectors located 2 cm above the chamber floor. Beam breaks
from the movement of the mice are automatically recorded and translated by Accuscan
software into total distance traveled (cm).
Acute Locomotor Activity Procedure. Mice are moved in their home cages to the procedure room and left undisturbed to
acclimate for 45 to 60 minutes prior to testing. Mice are weighed, injected with the
pretreatment vehicle or VMD-101 (5, 20, 75 mg/kg, i.p.), and placed individually into
holding cages. At the conclusion of the pretreatment interval (30 minutes), each subject
is injected with saline or ethanol (2g/kg, i.p.) and placed into the activity monitor
(
Holstein et al., Alcohol Clin Exp Res. (2009) 33:108-20). Activity is recorded for 30 minutes in 5-minute time bins. At the conclusion of
testing, blood samples (50 µl) are collected from the periorbital sinus of ethanol
treated mice for the determination of blood ethanol concentration (BEC) using an Analox
Alcohol Analyzer (Analox Instruments, Lunenburg, MA).
Chronic Locomotor Activity Procedure. The procedure is the same as acute procedure except the mice are chronically sensitized
by daily i.p. injection of EtOH (2.5g/kg) for 10 days and the test is performed on
the 11
th day (
Boehm et al., Psychopharmacology (Berl). (2008) 197:191-201).
[0165] Chronic Constriction Injury (CCI) Mono-Neuropathic Pain Model in Rats. The CCI model is one of the most commonly used mono-neuropathic pain model firstly
described in details by Bennett and Xie (
Bennett and Xie, (1988), Pain 33:87-107). It mimics important clinical chronic pain symptoms such as mechanical allodynia
and thermal hyperalgesia. This model is established by loosely-ligating the sciatic
nerve. In brief, under anesthesia with pentobarbital (40 mg/kg, i.p.), a 1.5-cm incision
is made 0.5 cm below the pelvis, and the biceps femoris and the gluteous superficialis
(right side) are separated. The left sciatic nerve is exposed and isolated at mid-thigh
level by blunt dissection. This nerve is chronically constricted by placing 4 loose
ligatures of 5-0 chromic catgut (Ethicon Inc., Somerville, NJ) with 1-mm spacing being
placed around the nerve. After the loose ligation, the skin incision will be closed
with silk sutures after the hemostasis. The rats are allowed to recover and placed
in a cage with soft bedding for at least 7 days before behavioral testing. Sham controls
are subjected to the same surgical procedure except the nerve is not ligated. This
procedure results in tactile allodynia in the left hindpaw. Rats are included in the
study only if they do not exhibit motor dysfunction (e.g., paw dragging or dropping)
and their paw withdrawal threshold (PWT) is below 4.0 g. On day 14 after surgery,
each group of rats will be treated with TA at one of four doses, vehicle or positive
controls by oral gavage (or i.p. injection), and PWT is determined by calibrated von
Frey filaments at various time points: pre-dose, 0.5, 1, 1.5, 2, 3, 4 h post-dose.
[0166] von Frey Test for Mechanical (Tactile) Allodynia. Mechanical allodynia is assessed by applying a series of von Frey filaments (2 -
20 g) (Stoelting, Wood Dale, IL) to the mid-plantar surface of the hindpaw. In the
test, rats are individually housed in Plexiglas chambers, which are placed on top
of a metal mesh floor. Animals are allowed to habituate in the chambers for at least
30 min before the experiment. When the intensity of a tactile stimulus reaches to
a level that the animal cannot tolerant for the pain, it moves its paw away from the
stimulus. This is registered as paw withdrawal threshold (PWT). The intensity of this
particular filament that evokes PWT is recorded as a positive withdrawal. A positive
response is at least 3 positive paw-withdrawal responses out of 5 probing trials.
Probing is performed only when the paw is in contact with the mesh floor. Each probe
is applied to the paw until the filament is bent and kept in such position for 6-8
sec. An up-and-down method is used. In brief, the test starts with a filament in the
middle of the series (usually the 8-gm filament), then changes to a higher or lower
filament, depending on positive or negative response from the preceding trial. All
experiments are conducted in a blinded fashion. TA, positive control, or vehicle are
prepared and coded. The coding are blinded to the experimenter.
[0167] Plantar Test (Hargreaves Method) for Thermal Hyperalgesia. Amplified responses to thermal painful stimulation (thermal hyperalgesia) is assessed
in unrestrained rats. Rats are individually housed in Plexiglas chambers, which are
placed on top of a glass surface. Animals are habituated in the chambers for at least
30 min before the testing. Under the glass surface, a small radiant heating device
(Ugo Basile, Comerio, Italy) with a stable halogen heating lamp and a timer will be
adjusted below the plantar surface of the hindpaw. Turning the lamp on starts to heat
the glass under the paw and activates the timer at the same time. When the glass temperature
reaches to a level that the animal cannot tolerant, the animal moves its paw aside.
This movement is picked up by a photocell built in the device and concurrently the
timer is stopped and the lamp is turned off. The time spent, i.e. the paw withdrawal
latency (PWL) is recorded. To avoid tissue damage, a cut-off time of 22 sec is preset,
regardless of the paw movement. Tests are done on each hindpaw.
[0168] Cancer Tests. Cancer Cell lines are from American Type Culture Collection (ATCC, Manassas, VA)
and cultured in MEM supplemented with 5% fetal bovine serum (FBS) and 1 % penicillin/streptomycin.
WST-1
Proliferation Assay: Cancer cell lines are used for in vitro evaluation of cytotoxicity of TA. Cells
are seeded in 96-well flat bottom cell culture plates at a density of 3-4×10
3 cells/well with compounds and incubated for 4 days. The rate of cell growth inhibition
after treatment with increasing concentrations of the TA is determined by tetrazolium
salt (WST-1). WST-1 is added at a final concentration of 10% to each well, and then
the plates are incubated at 37°C for 2-3 hrs. The absorbance of the samples is measured
at 450 nm by a spectrophotometer. Concentration of the compounds that inhibited cell
growth by 50% (IC50) is calculated by comparing absorbance in the vehicle treated
cells and the cells treated with the compounds.
Cell invasion is determined as described from the cell invasion assay kit (Chemicon International,
Temecula, CA). Cells are harvested and resuspended in serum-free medium. An aliquot
(1 x 10
5 cells) of the prepared cell suspension is added into the chamber and incubated for
48 hours at 37°C in a 10% CO
2 tissue culture incubator. Noninvading cells are gently removed from the interior
of the inserts with a cotton-tipped swab. Invasive cells are stained and quantified
by colorimetric reading at 560 nm.
Random cell motility is determined as described from the motility assay kit (Cellomics, Pittsburgh, PA).
Cells are harvested, suspended in serum-free medium, and plated on top of a field
of microscopic fluorescent beads. After a 48-hour incubation period, cells are fixed
and areas of clearing in the fluorescent bead field corresponding to phagokinetic
cell tracks are quantified using NIH ScionImager.
[0169] Xenograft tumor models. Mice are housed in microisolator cages and maintained on sterilized chow and water
ad libitum in a barrier facility for 1-3 weeks before use. All mice are handled in
accordance with the Guide to the Care and Use of Laboratory Animals (National Research
Council, 1996). Body weights and tumor size are measured twice weekly and clinical
observations are made twice daily. The in vivo human breast cancer xenograft model
is established according to published methods (
Pan et al., Cancer Research 2005, 65, 8366-8371). Mice with well-established tumors (∼100 mm
3) are then randomly assigned into the vehicle, TA, positive control (PC) and TA plus
PC treatment groups and the drug treatment start on day 0. The vehicle group is treated
daily with 0.5% CMC-Na and 0.1% Tween 80 (vehicle) and TA group is treated with TA
suspended in the vehicle at 25 mg/kg (low dose) or 50 mg/kg (high dose), by oral gavage.
PC is given intraperitoneally (i.p.). The tumors are measured for the maximum width
(X) and length (Y) and the tumor volumes (V) are calculated using the formula: V =
(X
2Y)/2.
6.5 Therapeutic Uses
[0170] As described herein, a compound described herein, or a salt, prodrug or softdrug,
salt of prodrug or softdrug, solvate or hydrate, or physiologically functional derivative
thereof, can be used as therapeutics. For example, the compound can be formulated
into a pharmaceutical composition containing the compound, or a salt, prodrug or softdrug,
salt of prodrug or softdrug, solvate or hydrate, or physiologically functional derivative
thereof and one or more pharmaceutically acceptable vehicle. A therapeutically effective
amount of the present compound or a pharmaceutical composition thereof can administered
to a patient, preferably a human, suffering from a disease, disorder, symptom or condition
associated with irregular activity of PKCε for medical treatment purpose. The disease,
disorder, symptom or condition is selected from the group consisting of: acute pain,
chronic pain, inflammatory pain, neuropathic pain, diabetic neuropathy, alcoholic
polyneuropathy, cancer- or chemotherapy-induced pain, a generalized pain disorder,
tonic pain, persistent pain, postoperative pain, chemical-induced pain, drug-induced
pain, migraine, anxiety, skeletal muscle spasms, convulsive seizures, alcohol abuse
and alcoholism associated diseases, insomnia, pain associated with alcohol-induced
hyperalgesia, type 1 and type 2 diabetes, diabetic complications, hepatic steatosis
or liver cirrhosis, bipolar disorder, mania, epilepsy, sleeping disorder, burn, posttraumatic
stress disorder, cardiac disorder, smoking, inflammation and immune-mediated disorders
(including microbial infection and organ transplantation), insomnia, , postoperative
pain, cancer (including breast, head and neck, prostate and lung cancer), maladaptive
substance use, substance dependence, alcohol use or abuse, substance use or abuse,
drug use or abuse, drug-related effect and a combination thereof.
[0171] In other instances, a compound described herein, or a salt, prodrug or softdrug,
salt of prodrug or softdrug, solvate or hydrate, or physiologically functional derivative
thereof, or a pharmaceutical composition containing the compound, or a salt, prodrug
or softdrug, salt of prodrug or softdrug, solvate or hydrate, or physiologically functional
derivative thereof, is used in the preparation or manufacture of a medicament for
use in the treatment of a disease, disorder, symptom or condition mediated by irregular
PKCε activity.
[0172] In some instances, the compound having structural formula (Ia), (Ic), (Ii), (Ih),
(II), (IIa) or (IIb) inhibits PKCε with an IC
50 value of less than 1 µM.
[0173] In some instances, the compound having structural formula (Ia), (Ic), (Ii), (Ih),
(II), (IIa) or (IIb) inhibits PKCε selectively.
[0174] In some instances, the compound having structural formula (Ia), (Ic), (Ii), (Ih),
(II), (IIa) or (IIb) inhibits PKCε reversibly.
[0175] In some instances, the compound having structural formula (Ia), (Ic), (Ii), (Ih),
(II), (IIa) or (IIb) inhibits PKCε non-competitively with ATP.
[0176] In some instances, the compound having structural formula (Ia), (Ic), (Ii), (Ih),
(II), (IIa) or (IIb) increases sensitivity of GABA
A receptors to positive allosteric modulators.
[0177] In some instances, the compound having structural formula (Ia), (Ic), (Ii), (Ih),
(II), (IIa) or (IIb) reduces alcohol self-administration.
[0178] In some instances, the compound having structural formula (Ia), (Ic), (Ii), (Ih),
(II), (IIa) or (IIb) reduces PKCε-dependent nociceptor sensitization.
[0179] In some instances, the compound having structural formula (Ia), (Ic), (Ii), (Ih),
(II), (IIa) or (IIb) reduces hyperalgesia in alcoholic polyneuropathy.
[0180] Also provided herein is a kit comprising (a) a compound having a structural formula
(Ia), (Ic), (Ii), (Ih), (II), (IIa) or (IIb), and (b) instructions for treating carrying
out the disease, disorder, symptom or condition, examples of which are selected from
the group consisting of: acute pain, chronic pain, inflammatory pain, neuropathic
pain, diabetic neuropathy, alcoholic polyneuropathy, cancer- or chemotherapy-induced
pain, a generalized pain disorder, tonic pain, persistent pain, postoperative pain,
chemical-induced pain, drug-induced pain, migraine, anxiety, skeletal muscle spasms,
convulsive seizures, epilepsy, alcohol abuse and alcoholism associated disease, insomnia,
pain associated with alcohol-induced hyperalgesia, type 1 and type 2 diabetes, hepatic
steatosis or liver cirrhosis, bipolar disorder, mania, sleeping disorder, burn, posttraumatic
stress disorder, cardiac disorder, smoking, inflammation and immune-mediated disorders,
cancer, maladaptive substance use, substance dependence, alcohol use or abuse, substance
use or abuse, drug use or abuse, drug-related effect and a combination thereof.
6.6 Therapeutic/Prophylactic Administration
[0181] The present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, or pharmaceutical
compositions containing the present compounds, or salts, prodrugs or softdrugs, salts
of prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, may be advantageously used in human medicine. As previously described in
Section 6.5 above, the present compounds are useful for the treatment or prevention
of various diseases.
[0182] When used to treat or prevent the above-mentioned diseases or disorders, the present
compounds may be administered or applied solely, or in combination with other active
agents (
e.g., other pain agents, or other anticancer drugs).
[0183] Disclosed herein are methods of treatment and prophylaxis by administration to a
patient in need of such treatment a therapeutically effective amount of one or more
compounds of the present invention, or salts, prodrugs or softdrugs, salts of prodrugs
or softdrugs, solvates or hydrates, or physiologically functional derivatives thereof.
The patient may be an animal, more preferably, a mammal and most preferably, a human.
[0184] The present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, may be administered
orally. The present compounds, or salts, prodrugs or softdrugs, salts of prodrugs
or softdrugs, solvates or hydrates, or physiologically functional derivatives thereof,
may also be administered by any other convenient route, for example, by infusion or
bolus injection, by absorption through epithelial or mucocutaneous linings (
e.g., oral mucosa, rectal and intestinal mucosa,
etc.). Administration can be systemic or local. Various delivery systems are known, (
e.g., encapsulation in liposomes, microparticles, microcapsules, capsules,
etc.) that can be used to administer a compound and/or pharmaceutical composition thereof.
Methods of administration include, but are not limited to, intradermal, intramuscular,
intraperitoneal, intravenous, subcutaneous, intranasal, epidural, oral, sublingual,
intranasal, intracerebral, intravaginal, transdermal, rectally, by inhalation, or
topically, particularly to the ears, nose, eyes, or skin. The preferred mode of administration
is left to the discretion of the practitioner and will depend in-part upon the site
of the medical condition. In most instances, administration will result in the release
of the present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, into the
bloodstream of a patient.
[0185] In specific embodiments, it may be desirable to administer one or more of the present
compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs, solvates
or hydrates, or physiologically functional derivatives thereof, locally to the area
in need of treatment. This may be achieved, for example, and not by way of limitation,
by local infusion during surgery, topical application,
e.g., in conjunction with a wound dressing after surgery, by injection, by means of a
catheter, by means of a suppository, or by means of an implant, said implant being
of a porous, non-porous, or gelatinous material, including membranes, such as sialastic
membranes, or fibers. In some embodiments, administration can be accomplished by direct
injection at the site (or former site) of cancer or arthritis.
[0186] In certain embodiments, it may be desirable to introduce one or more of the present
compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs, solvates
or hydrates, or physiologically functional derivatives thereof, into the central nervous
system of a patient by any suitable route, including intraventricular, intrathecal
and epidural injection. Intraventricular injection may be facilitated by an intraventricular
catheter, for example, attached to a reservoir, such as an Ommaya reservoir.
[0187] The present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, may also
be administered directly to the lung by inhalation. For administration by inhalation,
the present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, may be conveniently
delivered to the lung by a number of different devices. For example, a Metered Dose
Inhaler ("MDI"), which utilizes canisters that contain a suitable low boiling propellant,
(
e.g., dichlorodifluoromethane, trichlorofluoromethane, dichlorotetrafluoroethane, carbon
dioxide or any other suitable gas), may be used to deliver compounds of the invention
directly to the lung.
[0188] Alternatively, a Dry Powder Inhaler ("DPI") device may be used to administer the
present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, to the lung.
DPI devices typically use a mechanism such as a burst of gas to create a cloud of
dry powder inside a container, which may then be inhaled by the patient. DPI devices
are also well known in the art. A popular variation is the multiple dose DPI ("MDDPI")
system, which allows for the delivery of more than one therapeutic dose. For example,
capsules and cartridges of gelatin for use in an inhaler or insufflator may be formulated
containing a powder mix of a compound of the invention and a suitable powder base
such as lactose or starch for these systems.
[0189] Another type of device that may be used to deliver the present compounds, or salts,
prodrugs or softdrugs, salts of prodrugs or softdrugs, solvates or hydrates, or physiologically
functional derivatives thereof, to the lung is a liquid spray device supplied, for
example, by Aradigm Corporation, Hayward, CA. Liquid spray systems use extremely small
nozzle holes to aerosolize liquid drug formulations that may then be directly inhaled
into the lung.
[0190] In some embodiments, a nebulizer is used to deliver the present compounds, or salts,
prodrugs or softdrugs, salts of prodrugs or softdrugs, solvates or hydrates, or physiologically
functional derivatives thereof, to the lung. Nebulizers create aerosols from liquid
drug formulations by using, for example, ultrasonic energy to form fine particles
that may be readily inhaled (see
e.g.,
Verschoyle et al., British J. Cancer, 1999, 80, Suppl. 2, 96. Nebulizers are available from a number of commercial sources such as Sheffield/Systemic
Pulmonary Delivery Ltd. Aventis and Batelle Pulmonary Therapeutics.
[0191] In other embodiments, an electrohydrodynamic ("EHD") aerosol device is used to deliver
the present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, to the lung.
EHD aerosol devices use electrical energy to aerosolize liquid drug solutions or suspensions
(see
e.g., Noakes
et al., United States Patent No.
4,765,539). The electrochemical properties of the formulation may be important parameters to
optimize when delivering the present compounds, or salts, prodrugs or softdrugs, salts
of prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, to the lung with an EHD aerosol device and such optimization is routinely
performed by one of skill in the art. EHD aerosol devices may more efficiently deliver
drugs to the lung than existing pulmonary delivery technologies.
[0192] In other embodiments, the present compounds, or salts, prodrugs or softdrugs, salts
of prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, can be delivered in a vesicle, in particular a liposome (See,
Langer, 1990, Science, 249:1527-1533;
Treat et al., in "Liposomes in the Therapy of Infectious Disease and Cancer," Lopez-Berestein
and Fidler (eds.), Liss, New York, pp.353-365 (1989);
see generally "
Liposomes in the Therapy of Infectious Disease and Cancer," Lopez-Berestein and Fidler
(eds.), Liss, New York, pp.353-365 (1989)).
[0193] In other embodiments, the present compounds, or salts, prodrugs or softdrugs, salts
of prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, can be delivered
via sustained release systems. In still other embodiments, the sustained release system
is an oral sustained release systems. In still other embodiments, a pump may be used
(See, Langer,
supra;
Sefton, 1987, CRC Crit RefBiomed Eng. 14:201;
Saudek et al., 1989, N. Engl. J Med. 321:574).
[0194] In still other embodiments, polymeric materials can be used in the pharmaceutical
compositions containing the present compounds, or salts, prodrugs or softdrugs, salts
of prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof. (for exemplary polymeric materials,
see "
Medical Applications of Controlled Release," Langer and Wise (eds.), CRC Pres., Boca
Raton, Florida (1974); "
Controlled Drug Bioavailability," Drug Product Design and Performance, Smolen and
Ball (eds.), Wiley, New York (1984);
Ranger and Peppas, 1983, J Macromol. Sci. Rev. Macromol Chem. 23:61;
see also Levy et al., 1985, Science 228: 190;
During et al., 1989, Ann. Neurol. 25:351;
Howard et al., 1989, J. Neurosurg. 71:105). In still other embodiments, polymeric materials are used for sustained release
delivery of oral pharmaceutical compositions. Exemplary polymers include, but are
not limited to, sodium carboxymethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose
and hydroxyethylcellulose (most preferred, hydroxypropyl methylcellulose). Other cellulose
ethers have been described (
Alderman, Int. J. Pharm. Tech. & Prod. Mfr., 1984, 5(3) 1-9). Factors affecting drug release are well known to the skilled artisan and have been
described in the art (
Bamba et al., Int. J. Pharm., 1979, 2, 307).
[0195] In other embodiments, enteric-coated preparations can be used for oral sustained
release administration. Coating materials include, but are not limited to, polymers
with a pH-dependent solubility
(i.e., pH-controlled release), polymers with a slow or pH-dependent rate of swelling, dissolution
or erosion
(i.e., time-controlled release), polymers that are degraded by enzymes
(i.e., enzyme-controlled release) and polymers that form firm layers that are destroyed
by an increase in pressure
(i.e., pressure-controlled release).
[0196] In still other embodiments, osmotic delivery systems are used for oral sustained
release administration (
Verma et al., Drug Dev. Ind. Pharm., 2000, 26:695-708). In still other embodiments, OROS™ osmotic devices are used for oral sustained release
delivery devices (Theeuwes
et al., United States Patent No.
3,845,770; Theeuwes
et al., United States Patent No.
3,916,899).
[0197] In still other embodiments, a controlled-release system can be placed in proximity
of the target of the present compounds, or salts, prodrugs or softdrugs, salts of
prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, thus requiring only a fraction of the systemic dose (See,
e.g.,
Goodson, in "Medical Applications of Controlled Release," supra, vol. 2, pp. 115-138
(1984)). Other controlled-release systems discussed in
Langer, 1990, Science 249:1527-1533 may also be used.
6.7 Pharmaceutical Compositions of the Invention
[0198] Described herein are pharmaceutical compositions comprising one or more compounds
described herein including the compound having structural formula (Ia), (Ic), (Ii),
(Ih), or (II) and any of their subgeneric groups and specific embodiments described
above in Section 6.2.
[0199] The present pharmaceutical compositions contain a therapeutically effective amount
of one or more compounds of the present invention, or salts, prodrugs or softdrugs,
salts of prodrugs or softdrugs, solvates or hydrates, or physiologically functional
derivatives thereof, preferably in purified form, together with a suitable amount
of a pharmaceutically acceptable vehicle, so as to provide a form for proper administration
to a patient. When administered to a patient, the present compounds and the pharmaceutically
acceptable vehicles are preferably sterile. Water is a preferred vehicle when a compound
is administered intravenously. Saline solutions and aqueous dextrose and glycerol
solutions can also be employed as liquid vehicles, particularly for injectable solutions.
Suitable pharmaceutical vehicles also include excipients such as starch, glucose,
lactose, sucrose, gelatin, malt, rice, flour, chalk, silica gel, sodium stearate,
glycerol monostearate, talc, sodium chloride, dried skim milk, glycerol, propylene,
glycol, water, ethanol and the like. The present pharmaceutical compositions, if desired,
can also contain minor amounts of wetting or emulsifying agents, or pH buffering agents.
In addition, auxiliary, stabilizing, thickening, lubricating and coloring agents may
be used.
[0200] Pharmaceutical compositions may be manufactured by means of conventional mixing,
dissolving, granulating, dragee-making, levigating, emulsifying, encapsulating, entrapping
or lyophilizing processes. Pharmaceutical compositions may be formulated in conventional
manner using one or more physiologically acceptable carriers, diluents, excipients
or auxiliaries, which facilitate processing of compounds of the invention into preparations
that can be used pharmaceutically. Proper formulation is dependent upon the route
of administration chosen.
[0201] The present pharmaceutical compositions can take the form of solutions, suspensions,
emulsion, tablets, pills, pellets, capsules, capsules containing liquids, powders,
sustained-release formulations, suppositories, emulsions, aerosols, sprays, suspensions,
or any other form suitable for use. In some embodiments, the pharmaceutically acceptable
vehicle is a capsule (see
e.g., Grosswald
et al., United States Patent No.
5,698,155). Other examples of suitable pharmaceutical vehicles have been described in the art
(see
Remington: The Science and Practice of Pharmacy, Philadelphia College of Pharmacy
and Science, 20th Edition, 2000).
[0202] For topical administration a compound may be formulated as solutions, gels, ointments,
creams, suspensions,
etc. as is well-known in the art.
[0203] Systemic formulations include those designed for administration by injection,
e.g., subcutaneous, intravenous, intramuscular, intrathecal or intraperitoneal injection,
as well as those designed for transdermal, transmucosal, oral or pulmonary administration.
Systemic formulations may be made in combination with a further active agent such
as another anticancer agent.
[0204] In some embodiments, the present compounds, or salts, prodrugs or softdrugs, salts
of prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, are formulated in accordance with routine procedures as a pharmaceutical
composition adapted for intravenous administration to human beings. Typically, compounds
for intravenous administration are solutions in sterile isotonic aqueous buffer. For
injection, the present compounds, or salts, prodrugs or softdrugs, salts of prodrugs
or softdrugs, solvates or hydrates, or physiologically functional derivatives thereof,
may be formulated in aqueous solutions, preferably, in physiologically compatible
buffers such as Hanks' solution, Ringer's solution, or physiological saline buffer.
The solution may contain formulatory agents such as suspending, stabilizing and/or
dispersing agents. When necessary, the pharmaceutical compositions may also include
a solubilizing agent. Pharmaceutical compositions for intravenous administration may
optionally include a local anesthetic such as lignocaine to ease pain at the site
of the injection. Generally, the ingredients are supplied either separately or mixed
together in unit dosage form, for example, as a lyophilized powder or water free concentrate
in a hermetically sealed container such as an ampoule or sachette indicating the quantity
of active agent. When the present compounds, or salts, prodrugs or softdrugs, salts
of prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, are administered by infusion, it can be dispensed, for example, with an infusion
bottle containing sterile pharmaceutical grade water or saline. When the present compounds,
or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs, solvates or hydrates,
or physiologically functional derivatives thereof, are administered by injection,
an ampoule of sterile water for injection or saline can be provided so that the ingredients
may be mixed prior to administration.
[0205] For transmucosal administration, penetrants appropriate to the barrier to be permeated
are used in the formulation. Such penetrants are generally known in the art.
[0206] Pharmaceutical compositions for oral delivery may be in the form of tablets, lozenges,
aqueous or oily suspensions, granules, powders, emulsions, capsules, syrups, or elixirs,
for example. Orally administered pharmaceutical compositions may contain one or more
optional agents, for example, sweetening agents such as fructose, aspartame or saccharin;
flavoring agents such as peppermint, oil of wintergreen, or cherry coloring agents
and preserving agents, to provide a pharmaceutically palatable preparation. Moreover,
in tablet or pill form, the compositions may be coated to delay disintegration and
absorption in the gastrointestinal tract, thereby providing a sustained action over
an extended period of time. Selectively permeable membranes surrounding an osmotically
active driving compound are also suitable for orally administered compounds of the
invention. In these later platforms, fluid from the environment surrounding the capsule
is imbibed by the driving compound, which swells to displace the agent or agent composition
through an aperture. These delivery platforms can provide an essentially zero order
delivery profile as opposed to the spiked profiles of immediate release formulations.
A time delay material such as glycerol monostearate or glycerol stearate may also
be used. Oral compositions can include standard vehicles such as mannitol, lactose,
starch, magnesium stearate, sodium saccharine, cellulose, magnesium carbonate,
etc. Such vehicles are preferably of pharmaceutical grade.
[0207] For oral liquid preparations such as, for example, suspensions, elixirs and solutions,
suitable carriers, excipients or diluents include water, saline, alkyleneglycols (
e.g., propylene glycol), polyalkylene glycols (
e.g., polyethylene glycol) oils, alcohols, slightly acidic buffers between pH 4 and pH
6 (
e.g., acetate, citrate, ascorbate at between about 5.0 mM to about 50.0 mM)
etc. Additionally, flavoring agents, preservatives, coloring agents, bile salts, acylcarnitines
and the like may be added.
[0208] For buccal administration, the pharmaceutical compositions may take the form of tablets,
lozenges,
etc. formulated in conventional manner.
[0209] Liquid drug formulations suitable for use with nebulizers and liquid spray devices
and EHD aerosol devices will typically include a compound of the invention with a
pharmaceutically acceptable vehicle. In some embodiments, the pharmaceutically acceptable
vehicle is a liquid such as alcohol, water, polyethylene glycol or a perfluorocarbon.
Optionally, another material may be added to alter the aerosol properties of the solution
or suspension of compounds disclosed herein. Preferably, this material is liquid such
as an alcohol, glycol, polyglycol or a fatty acid. Other methods of formulating liquid
drug solutions or suspension suitable for use in aerosol devices are known to those
of skill in the art (see,
e.g., Biesalski, United States Patent No.
5,112,598; Biesalski, United States Patent No.
5,556,611).
[0210] The present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, may also
be formulated in rectal or vaginal pharmaceutical compositions such as suppositories
or retention enemas,
e.g., containing conventional suppository bases such as cocoa butter or other glycerides.
[0211] In addition to the formulations described previously, the present compounds, or salts,
prodrugs or softdrugs, salts of prodrugs or softdrugs, solvates or hydrates, or physiologically
functional derivatives thereof, may also be formulated as a depot preparation. Such
long acting formulations may be administered by implantation (for example, subcutaneously
or intramuscularly) or by intramuscular injection. Thus, for example, the present
compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs, solvates
or hydrates, or physiologically functional derivatives thereof, may be formulated
with suitable polymeric or hydrophobic materials (for example, as an emulsion in an
acceptable oil) or ion exchange resins, or as sparingly soluble derivatives, for example,
as a sparingly soluble salt.
6.8 Therapeutic Doses
[0212] The present compounds, or a salt, prodrug or softdrug, salt of prodrug or softdrug,
solvate or hydrate, or physiologically functional derivative thereof and a pharmaceutically
acceptable vehicle provided, will generally be used in an amount effective to achieve
the intended purpose. For use to treat or prevent diseases or disorders the compounds
and/or pharmaceutical compositions thereof, are administered or applied in a therapeutically
effective amount.
[0213] The amount of the present compounds, or salts, prodrugs or softdrugs, salts of prodrugs
or softdrugs, solvates or hydrates, or physiologically functional derivatives thereof,
that will be effective in the treatment of a particular disorder or condition disclosed
herein will depend on the nature of the disorder or condition, and can be determined
by standard clinical techniques known in the art. In addition,
in vitro or
in vivo assays may optionally be employed to help identify optimal dosage ranges. The amount
of the present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, administered
will, of course, be dependent on, among other factors, the subject being treated,
the weight of the subject, the severity of the affliction, the manner of administration
and the judgment of the prescribing physician.
[0214] For example, the dosage may be delivered in a pharmaceutical composition by a single
administration, by multiple applications or controlled release. In some embodiment,
the present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, are delivered
by oral sustained release administration. Dosing may be repeated intermittently, may
be provided alone or in combination with other drugs and may continue as long as required
for effective treatment of the disease state or disorder.
Suitable dosage ranges for oral administration depend on the potency of the present
compounds, but are generally between about 0.001 mg to about 200 mg of a compound
of the invention per kilogram body weight. Dosage ranges may be readily determined
by methods known to the artisan of ordinary skill.
[0215] Suitable dosage ranges for intravenous (i.v.) administration are about 0.01 mg to
about 100 mg per kilogram body weight. Suitable dosage ranges for intranasal administration
are generally about 0.01 mg/kg body weight to about 1 mg/kg body weight. Suppositories
generally contain about 0.01 milligram to about 50 milligrams of a compound of the
invention per kilogram body weight and comprise active ingredient in the range of
about 0.5% to about 10% by weight. Recommended dosages for intradermal, intramuscular,
intraperitoneal, subcutaneous, epidural, sublingual or intracerebral administration
are in the range of about 0.001 mg to about 200 mg per kilogram of body weight. Effective
doses may be extrapolated from dose-response curves derived from
in vitro or animal model test systems. Such animal models and systems are well-known in the
art.
[0216] The present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, are preferably
assayed
in vitro and
in vivo, for the desired therapeutic or prophylactic activity, prior to use in humans. The
present compounds, or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs,
solvates or hydrates, or physiologically functional derivatives thereof, may also
be demonstrated to be effective and safe using animal model systems.
[0217] Preferably, a therapeutically effective dose of the present compounds, or salts,
prodrugs or softdrugs, salts of prodrugs or softdrugs, solvates or hydrates, or physiologically
functional derivatives thereof, will provide therapeutic benefit without causing substantial
toxicity. Toxicity of the present compounds, or salts, prodrugs or softdrugs, salts
of prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, may be determined using standard pharmaceutical procedures and may be readily
ascertained by the skilled artisan. The dose ratio between toxic and therapeutic effect
is the therapeutic index. The present compounds, or salts, prodrugs or softdrugs,
salts of prodrugs or softdrugs, solvates or hydrates, or physiologically functional
derivatives thereof, generally exhibit particularly high therapeutic indices in treating
disease and disorders. The dosage of the present compounds, or salts, prodrugs or
softdrugs, salts of prodrugs or softdrugs, solvates or hydrates, or physiologically
functional derivatives thereof, will preferably be within a range of circulating concentrations
that include an effective dose with little or no toxicity.
6.9 Combination Therapy
[0218] As described herein, the present compounds, or salts, prodrugs or softdrugs, salts
of prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, can be used in combination therapy with at least one additional active or
therapeutic agent. The present compounds, or salts, prodrugs or softdrugs, salts of
prodrugs or softdrugs, solvates or hydrates, or physiologically functional derivatives
thereof, and the at least one additional active or therapeutic agent can act additively
or, more preferably, synergistically. In some embodiments, the present compounds,
or salts, prodrugs or softdrugs, salts of prodrugs or softdrugs, solvates or hydrates,
or physiologically functional derivatives thereof are administered concurrently, sequentially,
or separately with the administration of another therapeutic agent. Exemplary active
agents include, but are not limited to, aceglatone, aclarubicin, altretamine, aminoglutethimide;
5-aminogleavulinic acid, amsacrine, anastrozole, ancitabine hydrochloride, 17-1a antibody,
antilymphocyte immunoglobulins, antineoplaston a10, asparaginase, pegaspargase, azacitidine,
azathioprine, batimastat, benzoporphyrin derivative, bicalutamide, bisantrene hydrochloride,
bleomycin sulphate, brequinar sodium, broxuridine, busulphan, campath-ih, caracemide,
carbetimer, carboplatin, carboquone, carmofur, carmustine, chlorambucil, chlorozotocin,
chromomycin, cisplatin, cladribine, corynebacterium parvum, cyclophosphamide, cyclosporin,
cytarabine, dacarbazine, dactinomycin, daunorubicin hydrochloride, decitabine, diaziquone,
dichlorodiethylsulphide, didemnin b., docetaxel, doxifluridine, doxorubicin hychloride,
droloxifene, echinomycin, edatrexate, elliptinium, elmustine, enloplatin, enocitabine,
epirubicin hydrochloride, estramustine sodium phosphate, etanidazole, ethoglucid,
etoposide, fadrozole hydrochloride, fazarabine, fenretinide, floxuridine, fludarabine
phosphate, fluorouracil, flutamide, formestane, fotemustine, gallium nitrate, gencitabine,
gusperimus, homoharringtonine, hydroxyurea, idarubicin hydrochloride, ifosfamide,
ilmofosine, improsulfan tosylate, inolimomab, interleukin-2; irinotecan, jm-216, letrozole,
lithium gamolenate, lobaplatin, lomustine, lonidamine, mafosfamide, meiphalan, menogaril,
mercaptopurine, methotrexate, methotrexate sodium, miboplatin, miltefosine, misonidazole,
mitobronitol, mitoguazone dihydrochioride, mitolactol, mitomycin, mitotane, mitozanetrone
hydrochloride, mizoribine, mopidamol, muitlaichilpeptide, muromonab-cd3, mustine hydrochloride,
mycophenolic acid, mycophenolate mofetil, nedaplatin, nilutamide, nimustine hydrochloride,
oxaliplatin, paclitaxel, pcnu, penostatin, peplomycin sulphate, pipobroman, pirarubicin,
piritrexim isethionate, piroxantrone hydrochloride, plicamycin, porfimer sodium, prednimustine,
procarbazine hydrochloride, raltitrexed, ranimustine, razoxane, rogletimide, roquinimex,
sebriplatin, semustine, sirolimus, sizofiran, sobuzoxane, sodium bromebrate, sparfosic
acid, sparfosate sodium, sreptozocin, sulofenur, tacrolimus, tamoxifen, tegafur, teloxantrone
hydrochloride, temozolomide, teniposide, testolactone, tetrasodium mesotetraphenylporphine-sulphonate,
thioguanine, thioinosine, thiotepa, topotecan, toremifene, treosulfan, trimetrexate,
trofosfamide, tumor necrosis factor, ubenimex, uramustine, vinblastine sulphate, vincristine
sulphate, vindesine sulphate, vinorelbine tartrate, vorozole, zinostatin, zolimomab
aritox, and zorubicin hydrochloride, and the like, either individually or in any combination,
an inhibitor of protein kinase A (PKA), an inhibitor of cAMP signaling, a nonsteroidal
anti-inflammatory drug, a prostaglandin synthesis inhibitor, a local anesthetic, an
anticonvulsant, an antidepressant, an opioid receptor agonist, and a neuroleptic,
an agonist of GABA
A receptor (e.g. alprazolam, chlordiazepoxide, chlordiazepoxide hydrochloride, chlormezanone,
clobazam, clonazepam, clorazepate dipotassium, diazepam, droperidol, estazolam, fentanyl
citrate, flurazepam hydrochloride, halazepam, lorazepam, midazolam hydrochloride,
oxazepam, prazepam, quazepam, temazepam, triazolam, amobarbital, amobarbital sodium,
aprobarbital, butabarbital sodium, hexobarbital sodium, mephobarbital, metharbital,
methohexital sodium, pentobarbital, pentobarbital sodium, phenobarbital, phenobarbital
sodium, secobarbital, secobarbital sodium, talbutal, thiamylal sodium, thiopental
sodium, ganaxalone, alphaxalone and isoflurane), a benzodiazepine, a barbiturate,
a neurosteroid and a inhalation anesthetic, a anesthetic, an anti-cancer drug, and
another pain killer.
[0219] The foregoing detailed description has been given for clearness of understanding
only and no unnecessary limitations should be understood therefrom as modifications
will be obvious to those skilled in the art. It is not an admission that any of the
information provided herein is prior art or relevant to the presently claimed inventions,
or that any publication specifically or implicitly referenced is prior art.
[0220] Embodiments of this invention are described herein, including the best mode known
to the inventors for carrying out the invention. Variations of those preferred embodiments
may become apparent to those of ordinary skill in the art upon reading the foregoing
description. The inventors expect skilled artisans to employ such variations as appropriate,
and the inventors intend for the invention to be practiced otherwise than as specifically
described herein. Moreover, any combination of the above-described elements in all
possible variations thereof is encompassed by the invention unless otherwise indicated
herein or otherwise clearly contradicted by context.