[0001] The present invention relates to the field of bioorganic chemistry and, in particular,
it concerns novel dipeptide and pseudopeptide compounds comprising a heterocyclic,
for instance, imidazole or indole group, a method to produce these and the known compounds
of similar structure, as well as their use in medicine as potential therapeutic agents.
Prior art
[0002] Substances of peptide nature are known to possess a high biological activity. Different
action aspects of these compounds are disclosed in the literature: on the immune system,
on histamine release from rat peritoneal mast cells and human basophils [
Marone G., Columbo N., Soppeisa L. et al., J. Immunol. (1984) Vol. 133, No 3, pp:
1542-1546;
Wise J., Wojtecka-Lukasik E., Maslinski S., Agents Actions (1986) Vol. 18, No 1-2,
pp. 262-265], on production and catabolism of prostaglandin E
2 [
Duchateau J., Bolla K., Med. Oncol, and Tumor Pharmacoter. (1989) Vol. 6, No 6, pp.
19-23], and on immediate reaction development [8.
Muller E., Sonnenschein B., Naturamed. (1989), Vol. 4, No 4, pp. 34-38].
[0003] Hypoxia is a common link in the pathogenesis of a broad circle of pathological conditions
(stress, physical load, radiation, allergic diseases, atherosclerosis and accompanying
diseases, hepatic lesions of different etiology, diabetes mellitus and others). It
is known that in hypoxia, lipid peroxidation (LP) rises and cytochrome P-450 content
and the activity of P-450-dependent enzymes drop [
Proulx M., Dusouich P., J. Pharm. Pharmacol. (1995), Vol. 47, Iss 5, pp. 392-397;
Barakat M., du Souich P., J. Pharm. Pharmacol. (1996), Vol. 48, pp. 906-910]. At the same time, the activity of superoxide-desmutase rises and hepatic glutathione
content and the activity of glutathione-peroxidase drop. These changes result in an
increased amount of the reactive oxygen radicals which can cause damage of the membrane-bound
enzymes, in particular, the P-450 cytochrome system enzymes [
Proulx M., Dusouich P., J. Pharm. Pharmacol. (1995), Vol. 47, Iss 5, pp. 392-397]. LP is an important physiological process continuously occuring in the cell membrane
and normally playing an important role in the life activity of cells, e.g. during
the synthesis of prostaglandins as well as in phagocytosis [
Sokolov E.I. Diabetes mellitus and atherosclerosis. Moscow, Nauka publishers (1996),
405 pp.]. However, as background to tissue hypoxia development, this process becomes poorly
controllable and a great amount of free-radical compounds are formed, which have no
time for neutralization. Acidosis development is accompanied by the induction of cytochrome
P-450 2E1 which exhibits a pronounced activity when lipid peroxides are formed that
promotes the rise in LP to a greater extent still [
Bestervelt L.L., Vaz A.D.N., Coon M.J., Proc. Natl. Acad. Sci. U.S.A. (1995), Vol.
92, Iss. 9, pp. 3764-3768]. Normalization of LP can serve as an important criterion in the therapy of said
diseases.
[0004] It is known that change in the hepatic cytochrome P-450 system condition is closely
related to its antioxidant function. Study of this problem has an applied character
since in many diseases (atherosclerosis, liver cirrhosis, hepatitis, alcohol abuse
and others) disbalance of lipid metabolism occurs with a subsequent rise in lipid
peroxidation (LP).
[0005] The development of experimental allergic reactions has been shown to occur against
the background of decrease in terminal oxigenase content and destabilized condition
of the hepatic monooxigenase system components assessed by the renewal ability of
B
5 and P-450 cytochromes [
Krzhechkovskaya V.V., Meltsev G.Yu., Marokko I.N., The 4th All-Union Symposium on
Medical Enzymology (1983), p. 137]. Change in the content and ratio of hepatic P450B and P450L cytochrome groups, correlates
with change in Hexenal sleep duration, in hormonal status and in the severety of anaphylactic
shock in guinea-pigs [
Marokko I.N., Krzhechkovskaya V.V., Malikova N.A., Izotov M.V., Benediktova S.A.,
Spiridonova S.M., Bulletin of Experimental Biology and Medicine (1991) No 8, pp. 200-202]. Activation of the P-450 cytochrome system enzymes with Phenobarbital type inductors,
results in the severety alleviation of experimental allergic reaction signs [
Marokko I.N., Krzhechkovskaya V.V., Malikova N.A., Izotov M.V., Benediktova S.A.,
Spiridonova S.M., Bulletin of Experimental Biology and Medicine (1991) No 8, pp. 200-202]. At the same time, when sensitized animals are administered Methyrapone, an inhibitor
of the P-450 cytochrome system and cortisol synthesis, an increase in bronchospasm
is observed [
Fornhem C., Kumlin M., Lundberg J.M., Alving K., Eur. Resp. J. (1995), Vol. 8, Iss.
7, pp. 1100-1109;
Fornhem C., Lundberg J.M., Alving K., Eur. Resp. J. (1995), Vol. 8, Iss. 6, pp. 928-937]. Sensitization state in humans and experimental animals is accompanied by a drop
in the blood and urine levels of glucocorticoids. Normalization of adrenocortical
hormone levels results in the improvement of clinical disease picture in humans and
in decreased severety of allergic reaction signs in animals [
Marokko I.N., Krzhechkovskaya V.V., Malikova N.A., Proceedings of the All-Union Conference
"P-450 Cytochrome and Modification of Macromolecules", Yalta (1989) p. 339;
Macharadze D.Sh, Marokko I.N., Balabolkin I.I., Yukhtina N.V., Malikova N.A., Pediatry
(1994) No 3, pp. 9-12], and a decrease in their levels results in the aggravation of allergic reaction
signs [
Fornhem C., Kumlin M., Lundberg J.M., Alving K., Eur. Resp. J. (1995) Vol. 8, Iss.
7, pp. 1100-1109;
Fomhem C., Lundberg J.M., Alving K., Eur. Resp. J. (1995) Vol. 8, Iss. 6, pp. 928-937].
[0006] Arachidonic acid (AA) metabolites being formed in the P-450 cytochrome system, possess
a number of important biological effects, in particular, vasodilating and bronchiolytic
effects [
Knickle L.C., Bend J.R, J. Moll. Pharmacol 91994), Vol. 45, Iss. 6, pp. 1273-1280;
Quiroga J., Prieto J., Phamacol. Therap. (1993), Vol. 58,Iss, 1, pp. 67-91;
Ma Y.H., Gebremedich D., Schwartzman M.L., et al., Circulation Research (1993), Vol.
72, Iss. 1, pp. 126-136], cytoprotective action [
Quiroga J., Prieto J., Pharmacol. Therap. (1993), Vol. 58, Iss. 1, pp. 67-91], they potentiate prostaglandin E
2 synthesis [
Caroll M.A., Balazy M., Margiotta P., Falck J.R., Mcgiff J.C., J. Biol. Chem. (1993),
Vol. 268, Iss. 17, pp. 12260-12266;
Sakairi Y., Jacobson H.R., Noland T.D., Capdevilla J.H., Falck J.R., Breyer M.D.,
Amer. J. Physiol-Renal. F1. Elect. (1995), Vol. 37, Iss. 5, pp. F931-F939] and other effects, the vasodilating effect of AA being potentiated by administration
of phenobarbital, which is a known hepatic monoamine oxygenase system inductor [
Oyekan A.O., Eur. J. Pharmacol. (1995), Vol. 277, Iss. 2-3, pp. 123-132]. At the same time, the P-450-dependent AA metabolite 5,6-epoxyeucozatriene acid
(5,6-EET) potentiates PGE
2 synthesis and secretion [
Sakairi Y., Jacobson H.R., Noland T.D., Capdevila J.H.; Falck J.R., Breyer M.D., Amer.
J. Physiol-Renal. F1. Elect. (1995), Vol. 37, Iss. 5. pp. F931-F939]. On one hand, PGE
2 inhibits the anaphylactogenic surge of histamine and the other allergy and inflammation
mediators from the mast cells. On the other hand, histamine potentiates PGE
2 synthesis that is considered as one of the feedback mechanisms in allergic and inflammatory
reactions.
[0007] Of special importance in the development of allergic diseases is a change in the
pathochemical stage course of allergic reactions, which to a great extent is determined
by the condition of the first order target cells of allergy (basophils and mast cells),
the important feature of which is their ability to accumulate and to synthesize biologically
active compounds, in particular, histamine. In IgE and/or IgG-mediated response to
antigen, just these cells participate in the secretion of active substances and determine
the pathochemical phase course and manifestation degree of allergy clinical picture
[
Parker Ch.V. Mediators: Release and Functions. In: Immunology ed. by U. Pole, Moscow,
Mir publishers (1989) Vol. 3, pp. 170-247;
Chakravarty N.K. In: The mast cell: Its role in health and disease. Ed. J Pepys (1979)
pp. 38-46]. The importance of examining histamine secretion by mast cells is also determined
by the fact that in mast cells transglutaminase . (EC 2.3.2.13) is present, i.e. the
enzyme synthesizing protein-bound gamma-glutamyl histamine, which is a close analogue
of the suggested compounds. Stimulation of mast cells was shown to rase the activity
of transglutaminase and the content of protein-bound gamma-glutamyl histamine in mast
cells [
Fesus L., Szucs E., Barrett K. et al., J. Biol. C. Chem. (1995),No 25, pp. 13771-13778].
[0008] It has been demonstrated that in hepatic diseases, e.g. hepatitis and cirrhosis,
the hepatic P-450 cytochrome system functional activity decreases and LP rises [
Imaoka S., Sugiyama T., Taniguchi N., Funae Y., Carcinogenesis (1993), Vol. 14, Iss.
1, pp. 117-121;
Debinski H.S., Lee C.S., Danks J.A., Mackenzie P.I., Desmond P.V., Gastroenterology
(1995), Vol. 108, Iss. 5, pp. 1464-1469]. Changes in hepatic structure and function which are characteristic of a given pathology,
are noted in experimental animals administered carbon quadrichloride (CCl
4). The effect of this substance is connected with the damage of the cellular membrane
structures caused by elevated LP that is one of the hepatic P450 cytochrome system
enzyme inactivation [
Kapil A., Koul I.B., Suri O.P. Phytother. Res. (1995), Vol. 9, Iss. 3, pp. 189-1993].
[0009] Change in lipid metabolism in atherosclerosis is interconnected with change in the
P450 cytochrome system condition [
Wolfgang GHI, Robertson DG, Welty DF, Metz AL. Fund. Appl. Toxicol. (1995), Vol. 26,
Iss. 2, pp. 272-281;
Remaley A.T., Schumacher U.K., Amouzadeh H.R., Brever H.B., Hoeg J.M. J. Lipid Res.
(1995), Vol. 36, Iss. 2, pp. 308-314;
Stegeman J.J., Hahn M.E., Weisbrod R., Woodin B.R., Joy J.S., Najibi S., Cohen R.A.
Mol. Pharmacol. Vol.47, Iss. 2, pp. 296-306]. It is known that ischemic heart disease, which occupies first place among the planet
adult population mortality rate, is the most often occuring atherosclerosis manifestation.
One of the leading disorders in this disease is lipid metabolism disorder manifested
by elevated levels of plasma, low density lipoprotein (LDL) and very low density lipoprotein
(VLDL) cholesterol which are called "atherogenic" lipoproteins, with simultaneous
decrease in "antiatherogenic" high density lipoproteins (HDL).
[0010] Change in plasma lipid levels and ratio has been shown to reflect changes in the
membrane structure of parenchymatous organs. The membrane composition of cells, e.g.
microsomal cells, is directly dependent on the ratio in experimental animals [
Wade A., Harred W. Feder. Proct. (1976), Vol: 55, pp. 2475-2479]. Cholesterol administration to animals causes its accumulation in cellular memranes
decreasing their fluidity which, in turn, results in a change in the functional state
of enzymes [
Buters J.T.M., Zysset T., Reichen J. Biochem. Pharmacol. (1993), Vol. 46, Iss. 6,
pp. 983-991;
Reichen J., Buters J.T.M., Sojcic Z., Roos F.J., Experentia (1992), Vol. 48, Iss.
5, pp. 482-486;
Tatony Ya.N. Obesety. Pathophysiology, diagnostics, therapy., Warsaw, the Polish Medical
publishers (1981) p. 364].
[0011] In addition to carbohydrate metabolism disorders in insulin-dependent diabetes mellitus,
changes in ketone and fatty acid metabolism have been demonstrated, which result in
disbalance of the hepatic microsomal monooxygenase system and further promotes disorder
of the body hormonal status [
Shimojo N., Ishizaki T., Imaoka S., Funae Y., Fujii S., Okuda K., Biochem. Pharmacol.
(1993), Vol. 46, Iss. 4, pp. 621-627]. In this case, a change in lipid metabolism is observed, which is manifested by
cholesterol level elevation in the LDL and VLDL fractions and cholesterol decrease
in the HDL fraction, as well as by a significant rise in lipid peroxidation [
Sokolov E.I. Diabetes mellitus and atherosclerosis, Moscow, Nauka publishers (1996),
450 pp.]. Changes in lipid metabolism in diabetes mellitus practically completely coincide
with changes in atherosclerosis. Blood glucose level is one of the most important
parameters of the pathological process stabilization in diabetes mellitus. Practically
all antidiabetic drugs are known to lower blood glucose level not only in diabetes
patients but in healthy humans as well.
[0012] Phagocytosis is an important link in maintaining the body's internal medium. Phagocyting
cells are represented in a large amount in the body. To them in particular belong
peripheral blood neutrophils and macrophags (MP). Activation of MP is one of the homeostasis
adaptive mechanisms promoting elimination of pathogenes, and antitumor resistance
[
Immunology. Edited by Pole U., Moscow, Mir publishers (1989), Vol. 3, pp. 202-228;
Paltsev M.A., Ivanov A.A. Intercellular ineractions. Moscow, Meditsina publishes (1995),
224 pp.]. These cells are known to carry glucocorticoid receptors on the external membrane
[
Mayansky A.N., Pikuza O.I. Clinical aspects of phagocytosis. Kazan, MAGARIF publishers
(1993), 192 pp.]. Elevation of glucocorticoid hormone levels, is one of neutrophil and MP activation
mechanisms.
[0014] Active forms of neutrophils and basophils have been shown to synthesize and release
into extracellular medium biologically active substances such as hydrogen peroxide,
peroxidase and others, which inactivate leukotrienes that cause bronchospasm in allergic
diseases and play an important role in defence against infection and maintaining body
homeostasis [
Immunology: Edited by Pole U., Moscow, Mir publishers (1989), Vol. 3, pp. 202-228;
Henderson W.R, Jorg A., Klebanoff S.J., J. Immunol. (1982), Viol. 128, No 6, pp. 2609-2613]. Moreover, tranformation of macrophags in consumption of increased amounts of cholesterol
by animals, which results in functional activity disorder of macrophags, in particular
Kupfer cells [
Remaley A.T., Schumacher U.K., Amouzadeh H.R., Brever H.B., Hoeg J.M., J. Lipid Res.
(1995), Vol. 36, Iss. 2, pp. 308-314], is considered to be one of the key links in atherosclerotic plaque formation [
Sokolov E.I. Diabetes mellitus and atherosclerosis, Moscow, Nauka publishers (1996),
405 pp.].
[0016] Blood neutrophil activity drops sharply in severe infections, which can cause generalization
of infection, and a rise in the number of activated phagocytes including perypheral
blood neutrophils and peritoneal macrophages, and increases the probability of an
uncomplicated course of bacterial infection [
Mayansky A.N., Pikuza O.I. Clinical aspects of phagocytosis. Kazan, MAGARIF publishers
(1993), 192 pp.]. Antimicrobic, antiviral and antitumor defence of the body is directly related
to neutrophil and macrophage activation effects.
[0017] β-alanylhistamine and γ-aminobutyrylhistamine - which correspond to general formula
(I)- known compounds producable using the classical peptide chemistry methods and
possess in vitro antioxidant activity as well as wound healing and anticataract activity
[
Evstigneeva R.P., Zheltukhina G.A., Ogrel' S.A., Nebol'sin V.E. Synthesis of pseudopeptides
based on biogenic amines. Reports of the Russian Sciences Academy (1995), Vol. 345,
No 4, pp. 493-495;
Mc Caman M.W., Stetzler J., Clark B. Synthesis of γ-Glutamyl dopamine and Other Peptidoamines
in the Nervous System of Aplysia californica. J. Neurochem. (1985), Vol. 45, No 6,
pp. 1828-1835;
Evstigneeva R.P., Zheltukhina G.A., Ageeva E.A., Babizhaev M.A. Lipoperoxidase activity
of carnozine and carcinine. Reports of the Academy of Sciences of the USSR (1993),
Vol. 333, No 1, pp: 104-106], and are also producable using an enzymatic method - by combining amino acid and
histamine in the presence of an enzyme of hydrolase type [Patent Er.-
2,701,947 - September 2nd, 1994].
[0018] The esters of N-acyl derivatives of γ-Glutamyl dipeptides produced in
US 4,568,489 [of February 4th, 1986] using a DCC-method, are the closest by structure to the claimed compounds of dipeptide
nature; however, it is known that the DCC-method used to produce said compounds, can
result in side reactions involving the imidazole and indole groups [
Schreder E., Lubke K. Peptides. Moscow, Mir publishers (1967), p. 249]. In
WO 95/12581 [May 11th, 1995. - C1 CO7D 233/64.-A61K 31/415. - 7/42] pseudopeptide products are
disclosed having an imidazole group and possessing antioxidant properties. However,
none of the above indicated works discloses the claimed novel imidazole dipeptide
derivatives, the processes of their synthesis and their broad spectrum of action.
Description of the invention
[0019] The present invention provides a compound which is cyclohexylcarbonylhistamine or
N-(imidazolyl-4-acetyl)-heptylamine, or a peptide of general formula I:

either of structure
| R1 |
n |
R2 |
m |
R3 |

|
0 |
H |
1 |

|

|
0 |
H |
1 |

|

|
0 |
H |
1 |
4 imidazolyl |

|
0 |
H |
1 |
-3-indolyl |
or wherein
R1 is a C1-C3-hydrocarbon radical substituted by amino or carboxy, the carboxy group being optionally
esterified and the amino group being optionally substituted by acyl or the ester of
carbonic acid; or
R1 is a C1-C3 hydrocarbon radical simultaneously substituted by amino and carboxy, the carboxy
group being optionally esterified and the amino group being optionally substituted
by acyl or the ester of carbonic acid; or
R1 is a C1-C3 hydrocarbon radical substituted by an indole residue or a 5-6 membered unsaturated
heterocyclic group the hydrocarbon radical optionally simultaneously comprising an
amino group which is unsubstituted or substituted by acyl or the ester of carbonic
acid;
R2 is hydrogen or carboxy which is optionally esterified;
R3 is an indole group, which group is unsubstituted or substituted by methyl or hydroxy,
the hydroxy group in turn being unsubstituted or substituted by acyl, alkyl or aralkyl;
or
R3 is a 5-6 membered saturated or unsaturated heterocyclic group comprising oxygen,
sulfur and/or 1-3 nitrogen atoms, or a 5-6-membered unsaturated carbocyclic group,
or a methyl derivative thereof; or
R3 is a C1-C3 hydrocarbon radical substituted by amino or carboxy, the carboxy group being optionally
esterified; or
R3 is a C1-C3 hydrocarbon radical simultenaously substituted by amino and carboxy;
n is from 0-4 and m is from 1-5;
or a pharmaceutically acceptable salt thereof, for use as an antibacterial, antitumour,
antiviral or antimetastatic agent, or to alleviate stress conditions.
[0020] Preferably the compound of the invention is for use in combination with a cytostatic
agent or radiotherapy. In another preferred embodiment, when a compound of the invention
is for antiviral use, it is for use in treating influenza or HIV.
[0021] The present invention also provides novel compounds (defined below). These novel
compounds possess (i) antioxidant, antiradical, lipid regulating, hypoglycemic, antiinflammatory,
antiaggregate, immunomodulating, antiallergic, antihypoxic, and antiatherosclerotic
effects, (ii) the ability to induce the P-450 cytochrome system, to modulate the metabolism
of arachidonic acid and adrenocortical hormones, to lower the level of antigen-dependent
histamine secretion by peritoneal mast cells, to modulate the activity of macrophages
and natural killers, and the interferon system (of cytokines), (iii) activity related
to controlling the signs of and preventing asthma and pulmonary emphysema, (iv) wound
healing properties, (v) activity related to controlling the signs of skin lesion,
e.g. psoriasis, exzema, varicose veins, (vi) activity related to preventing dysfunctional
disorders including imminent abortion, dysfunctional uterine bleeding, and amenorrhea,
(vii) activity related to controlling the signs of ischemic disease, obesety, and
diabetes mellitus, (viii) hepatoprotective properties, (ix) activity related to controlling
radiation damage, hepatic lesions including toxic lesions, hepatitis, cirrhosis, and
alcohol abuse, (x) the capability to prevent the development of and to eliminate the
signs of herontological changes including cataracts, changes in cutaneous teguments,
senile psychoses, Alzheimer and Parkinson diseases, (xi) antibacterial and antivirus
activity including activity against HIV infection, (xii) antitumor and antimetastatic
activity including when administered in combination with cytostatic agents and radiotherapy,
and (xiii) adaptogen properties useful for overcoming stress conditions including
a hard physical load.
[0022] In a preferred embodiment the present invention provides a compound which is a peptide
of general formula (I) of claim 1, wherein:
R1 is NH2-CH2-, n is 1-4 or
R1 is HOOC-CH2-, n is 0-3; or
R1 is R2-OCO-CH2-, n is 0-3; Rz is -H or a C1-C3 hydrocarbon radical; or
R1 is HOOC-CH2-(CH3)C(Rv)-, Rv is H or CH3; or
R1 is C6H5CH2-OCO-NH-CH2-, n is 1-2; or
R1 is Rx-CONH-CH2-, n is 1-4, Rx is a C1-C3-hydrocarbon radical; or
R1 is CH3CONH-CH(CCOOM-, n is 1-2; or
R1 is CH3CONH-CH([CH2]kCOOH)-, n is 0, k is 1-2; or
R1 is NH2-CH([CH2]kCOOH)-, n is 0, k is 1-2; or
R1 is HOOC-CH(NH2)-, n is 0; or
R1 is HOOC-CH(NH2), n is 1-2; or
R1 is CH3OOC-CH(NH2)-, n is 1-2; or
R1 is(CH3)3C-OCONH-CH(COOCH2-C6H5)-, nis 1-2; or
R1 is -CH2-4-imidazolyl, -CH2-3-indolyl, n is 0-1; or
R1 is Rb-CH2-CH(NHRy)-, Rb is -4-imidazolyl, -3-indolyl, Ry is tert-butyloxycarbonyl, benzyloxycarbonyl,
H-, n is 0;
R2 is -H, -COOH, -COOR2 wherein Rz is -H or a C1-C3-hydrocarbon radical; and



m = 1; or
R3 is -CH2-NH2, m= 1-2; or
R3 is -CH2-COOH, m =1-2; or
R3 is -CH(NH2)-COOH, m = 1-2,
where R
4 = -H, -OH, -OCH
3 or -OCH
2C
6H
5, for use as an antibacterial, antitumour, antiviral or antimetastatic agent, or to
alleviate stress conditions.
[0023] Characteristic representatives of the novel dipeptides and pseudopeptides corresponding
to general formula (I) are those presented below:
[0024] Glutaryl histamine (n=3), Succinyl histamine (n=2)

N
α -acetyl-L-γ-glutamyl histamine

Methyl ester of glutaryl-L-histidine

Methyl ester γ-aminobutyryl-L-histidine

γ
-Aminobutyryl tryptamine

Glutaryl tryptamine

Glutaryl-4-(2-aminoethyl) morpholine
.

[0025] In a preferred embodiment the present invention provides a compound of general Formula
(I)

which is selected from the following compounds
for use as an antibacterial, antitumour, antiviral or antimetastatic agent, or to
alleviate stress conditions.
[0026] In a particularly preferred embodiment the present invention provides a compound
of structure

or a pharmaceutically acceptable salt thereof for use as an antibacterial, antitumour,
antiviral or antimetastatic agent or to alleviate stress conditions.
[0027] In another preferred embodiment of the present invention, the compound which is for
use as an antibacterial, antiviral or antimetastaric agent, or to alleviate stress
conditions is a known compound of formula (I) wherein (i)

and either (a) R
1 = NH
2CH
2-, n=1-2, R
1 = CH
3CONH=CH(COOH)=, n=1; R
1 = CH
3CONH-CH(CH
2COOH)-, n=0, or R
1-CO = pyroglutamyl, n=0, and R
2 = -H or (b) R
1 =NH
2-CH(COOH)-, n=2, and R
2 = -COOH,
or (ii) R
1 = NH
2CH
2-, n=1-2, or R
1 = NH
2-CH(COOH)-, n=2, and R
2=H,

wherein R
4 = -H, -OH, -OCH
3, or -CH
2C
6H
5, and m=1.
[0028] In a more preferred aspect of this embodiment of the present invention the compound
which is for use as an antibacterial, antitumour, antiviral or antimetastatic agent,
or to alleviate stress conditions corresponds to general formula (I), wherein (i)

m=1,
and either (a) R
1 = NH
2CH
2-, n=1-2, R
1 = NH
2CH(COOH)-, n=2, R
1 = CH
3CONH-CH(COOH)-, n=1, R
1= CH
3CONH-CH(CH
2COOH)-, n=0, or R
1-CO- = pyroglutamyl, n=0, and R
2 = -H, or (b) R
1 = NH
2-CH(COOH)-, n=1-2, and R
2=-COOH,
or (ii) R
1 = NH
2CH
2-, n=1-2, or R
1 = NH
2-CH(COOH)-, n=2, and R
2=H,

and m=1, wherein R
4 = -H or -OH.
[0029] Characteristic examples of the preferred known pseudopeptides corresponding to general
formula (I), are presented below:
γ-L-, D-glutamylhistamine (XLIV, XLV)

β-Alanylhistamine, n=2; γ-Aminobutyrylhistamine, n=3 (XLVI, XLVII)

γ-L-glutamyltryptamine (XLVIII)

γ-L-glutamylserotonine (XLIX)

N-Acetyl-β-Aspartylhistamine (L)

N-Acetyl-α-Aspartylhistamine (LI)

Pyroglutamylhistamine (LII)

[0030] The present invention also provides novel compounds. The novel compounds are of structure
(II), (III), (IV), (V), (VI
a), (VI), (VII), (VIII), (IX), (X
a), (X), (XI), (XII), (XIII), (XIV), (XV), (XVI), (XVIII). (XXII), (XXIII), (XXIV),
(XXV), (XXVI), (XXVII), (XXVIII), (XXIX), (XXXIII), (XXXIV), (XXXV), (XXXVII), (XXXVIII),
(XXXIX), (XL
a,b,c) (XLI), (XLII), (XLIII) or (Q) as defined above or a pharmaceutically acceptable
salt thereof. Preferred is glutarylhistamine of formula

or a pharmaceutically acceptable salt thereof.
[0031] The present invention also provides a novel compound of the present invention for
use in a method of treatment of the human or animal body by therapy.
[0032] In one embodiment the novel compounds of the present invention are for use as an
antibacterial, antitumour, antiviral or antimetastatic agent, or to alleviate stress
conditions.
[0033] In another embodiment the novel compounds of the present invention are for use as
an antihypoxic, a lipid regulator, or a hypoglycemic agent, for controlling symptoms
of or preventing asthma or pulmonary emphysemia, for controlling symptoms of cutaneous
lesions, psoriasis or eczema, for preventing abortion, dysfunctional uterine bleeding
or amenorrhea, for controlling the symptoms of ischemic disease or obesity, for use
as a hepatoprotective agent, or for controlling or preventing the symptoms of gerontological
disease.
[0034] Preferably in this embodiment the novel compound of the invention is for use in controlling
hepatic lesions including toxic lesions, hepatitis, cirrhosis or alcohol abuse.
[0035] The present invention also provides a process for producing a novel compound of the
present invention, which process comprises the amino group acylation of an amino compound
of general formula NH
2-CH(R
2)(CH
2)
m-R
3 wherein R
2, R
3 and m are as defined above, with, as acylating agent, an activated carboxy compound
of general formula R
1-(CH
2)
n-COX, wherein X is an activating group.
[0036] In a preferred aspect of this process of the present invention, R
1 is HOOC-CH
2-, n is 0-3; or R
1 = HOOC-CH
2-(CH
3)C(Rv)-, n = 1 and Rv = H or CH
3; and R
2 is H or -COOCH
3, the activated carboxy compound is an anhydride of a dicarbonic acid and the process
is carried out in an organic solvent.
[0037] In another preferred aspect of this process of the present invention, when R
1 = -CH
2-NH
2, n =1-2; R
2 = -H,

or
when R
1 = HOOC-CH(NH
2)-, n = 1-2; and
R
2 = -COOCH
3 or H; and

the acylating agent is a pentafluorophenyl ester of N-benzyloxycarbonyl-γ-aminobutyric
acid or N-benzyloxycarbonyl-j3-alanine or an α-benzyl ester of N-tert-butyl oxycarbonyl-L-glutamic
or aspartic acid and wherein the process is carried out in an organic solvent with
subsequent cleavage of the N-benzyloxycarbonyl protecting group and α-benzyl ester
or pentafluoro-phenyl ester from the protected derivative of a dipeptide using catalytic
hydrogenolysis, with subsequent cleaving of the N-tert-butyl oxycarbonyl group in
an anhydrous acidic medium.
[0038] In another preferred aspect of this process of the present invention, when R
1 = CH
3CONH-CH(COOH)- and
n = 1-2; or R
1 = CH
3CONH-CH([CH
2]
kCOOH)-, n = 0, k = 1-2; or R
1 = CH
3CONH-CH
2-, n = 2-4; and R
2 = H,

and m = 1,
the acylating agent is p-nitrophenyl acetate.
[0039] The compounds of the present invention are producable by acylation of an amine or
amino acid amino group with a carbonic group, a dicarbonic group or an N-protected
amino acid derivative with an activated carboxy group.
[0040] Synthesis of dipeptides and pseudopeptides comprising N-amino acylic substituent,
can be performed according to classical methods of peptide chemistry, advantageously
using activated species, for instance, N-oxysuccinimide esters. Preferred embodiments
include the use of pentafluorphenyl esters, which are the most active known esters.
As the activated derivatives of dicarbonic acids, cyclic internal anhydride thereof
are preferably used.
[0041] The α-amino group of the carboxylic or amino component can be protected by different
conventionally used groups, preferably a tert.-butyloxycarbonyl (Boc-) or benzyloxycarbonyl
(Z-) protective group.
[0042] The α-carboxy groups of glutamic and asparagic acid are preferably protected by a
benzyl (Bzl-) group and ornithine by a tert.-butyl group.
[0043] In the compounds of general formula (I), the carboxy group of the amino component
histidine can be in the form of methyl esther or can remain unprotected.
[0044] The synthesis of compounds comprising an N-amino acyl substituent is shown in the
following scheme 1:
Stage 1. Ry-NHA-COOX+NH2B→Ry-NH-A-CONHB
Stage 2. Ry-NH-A-CONH-B→NH2-A-CONH-B

Stage 4. n·RxH·NH2-A"-CONH-B→NH2-A"-CO-NH-B,
where R
y = Boc-, Z-; NH
2-A-CO- = β-Ala-, γ-Abu-, H-L-Glu-OBzl, H-L-Asp-OBzl; NH
2-B = HA, H-His-OH, H-His-OMe, TrpA, H-Trp-OMe, 5-(OMe)TrpA, 5-(OBzl)TrpA; NH
2-A"-CO = H-L-Glu-, H-L-Glu-OMe, n•R
xH = HHal (HCl), CF
3COOH, n =1, 2.
[0045] Stage 1 is generally carried out in the medium of a dehydrated aprotonic solvent,
preferrably dimethyl formamide (DMF), for 18-48 hours at room temperature, except
for when producing dipeptide Boc-L-Glu(L-His)-OBzl. The latter is typically produced
by the action of a three-fold excess of Boc-L-Glu(ONSu)-OBzl on unprotected L-histidine
in anhydrous-dioxanic medium (1:1). The advantage of this method is in the simplification
of the process due to the reduced number of stages (absence of the need to introduce
and remove histidine Cprotection) and the possibility of producing the dipeptide wherein
one of two carboxy groups is selectively protected.
[0046] If necessary, the protective groups of the intermediate compound R
y -NH-A-CONH-B can be cleaved off in accordance with stages 2 and 3.
[0047] Stage 2 can be carried out by way of catalytic hydrogenolysis only in the case where
R
y =Z-, and NH
2-A-CO-=β-Ala-γ-Abu-.
[0048] Stage 3 ,if necessary, can be accomplished in two different modifications when groups
-Boc- and Bzl are present in the intermediate compound R
y-NH-A-CONH-B, namely for the derivatives of glutamic and aspartic acids. Method 3.1
consists in acidolytic cleaving off of the N
α-Boc-protecting group, for instance by the effect of hydrochloride in an organic solvent
which is advantageously dioxan, methanol or a mixture thereof; or trifluoroacetic
acid. Catalytic hydrogenolysis can be used to subsequently remove the Bzl-group (3.2).
According to method 3.3, hydrogenolysis is first carried out and then, acidolytic
cleaving off of the N
α-protection (3.4). As a result of stage 3, products in the form of respective salts
are produced.
[0049] If it is necessary to produce target compounds in the form of free bases, stage 4
is carried out.
[0050] If a compound does not comprise unprotected carboxy groups, it can be produced in
the form of a free base by adding organic (Et
3N) or inorganic (NaOH) base, with subsequent isolation of the base salt from the target
product. In addition, ion-exchange chromatography can be used to achieve this goal,
in accordance with the technique described in
Evstigneeva R.P., Zheltukhina G.A., Ogrel' S.A., Nebol'sin V.E. Synthesis of pseudopeptides
based on biogenic amines., Reports of the Academy of Sciences of the USSR (1995),
Vol. 345, No 4, pp. 493-495.
[0051] In addition, if necessary, the compound can be produced in the form of a base, in
the form of a transition metal salt with formation of a chelate.
[0052] The known compound γ-L-Glu-HA [
Konishi H., Kakimoto Y. Formation of γ-Glutamylhistamine from histamine in rat brain,
J.Neurochem. (1976), Vol. 27, pp. 1461-1463], from which the nivel compound of structure (V) as defined above may be produced,
can itself be produced using the method described in
Mc Caman M.W., Stetzler J., Clark B. Synthesis of γ-Glutamyldopamine and Other Peptidoamines
in the Nervous System of Aplysia californica, J. Neurochem. (1985), Vol. 45, No 6,
pp. 1828-1835. The N-acetyl derivative γ-L-Glu-HA-Ac-γ-L-Glu-HA (V), can be produced in accordance
with scheme 2.

[0053] Scheme 2, which introduces an acetyl group into a dipeptide, is advantageous over
using an N-acetyl derivative of glutamic acid as an initial product for creating a
peptide bond, since it reduces the possibilty of racemization. The use of p-nitrophenylacetate
is preferrable as compared with acetic anhydride, since its use is not accompanied
by side reactions of the imidazole group, which consist of the formation of an acetyl
derivative by imidazole and the respective salt of the acetil anhydride, with the
release of a molecule of acetic acid.
[0054] Synthesis of compounds of the present invention which comprise a dicarbonic acid
residue can be accomplished using different methods, preferrably in accordance with
scheme 3, where an internal cyclic anhydride is used as a C-activated carboxy compound.

where n=0-1 and NH
2B = HA, H-His-OMe,

or

where
R4=-H,-OH, -OCH3, -OCH2C6H5.
[0055] In the case where an appropriate anhydride is not available, e.g. for adipinic acid,
pseudopeptide synthesis can be accomplished using DCC. In this case, a reaction between
dicarbonic acid and DCC is first carried out, the ratio being 2:1 M/M, and then the
amino component is added (amine or an amino acid derivative).
[0056] Synthesis of compounds of the present invention which comprise an N-acyl residue
of a fatty acid can be accomplished using chloroanhydride.
[0057] The present invention also provides a pharmaceutical or cosmetic composition comprising
a pharmaceutically acceptable carrier or diluent and, as an active compound, a novel
compound of the present invention as defined above. Such compositions possess antihypoxic;
antioxidant, antiradical, lipid-regulating, hypoglycemic, antiaggregate, immunomodulating,
wound healing, antiallergic, antiasthmatic, antiviral, antibacterial, antitumor, antimetastatic
and adaptogenic effects and the ability to induce the hepatic P-450 cytochrome system,
to modulate the metabolism of arachidonic acid and adrenocortical hormones, to lower
the level of antigen-dependent histamine secretion by mast cells, to modulate the
activity of macrophages, natural killers, and the interferon system (of cytokines),
and to prevent abortions and dysfunctional uterine bleedings, and the signs of diabetes
mellitus, obesity, ischemic heart disease, stress conditions, hepatitis, cirrhosis,
toxic liver lesions, alcohol abuse, radiation injuries, and herontological changes.
[0058] Pharmaceutical compositions of the present invention can be used in the form of pharmaceutical
preparations (for instance, in solid, semisolid and liquid forms), comprising a novel
compound of the present invention as an active ingredient in a mixture with an organic
or inorganic carrier or excipient, suitable for intramuscular, intravenous, intranasal,
oral, sublingual inhalation or intrarectal administration. The active ingredient can
be included into the pharmaceutical composition together with conventionally used
non-toxic, pharmaceutically acceptable carriers, suitable for producing solutions,
tablets, pellets, capsules, suppositoria; emulsions, suspensions, ointments or any
other dosage forms. Water, glucose, lactose, gum arabic, gelatin, starch, magnesium
trixylitol, maize starch, urea and other carriers suitable for preparing solid, soft
or liquid preparations, can be used as carriers. In this case, stabilizers, thickeners,
stains and flavours can be used as supplements.
[0059] The active target compound is introduces into a pharmaceutical composition in an
amount sufficient to achieve the necessary effect depending on nosology, course and
severety of disease.
[0060] In producing a single dosage form, the amount of active ingredient used in combination
with a carrier, can vary depending on the recipient subjected to therapy and on the
particular administration method.
[0061] Thus, for instance, in using a compound of present invention in the form of a solution
for injection, the active ingredient content is 0.01-0.03%. As a diluent, 0.9% sodium
chloride solution, distilled water, novocaine solution for injections, Ringer solution
or glucose solution can be used. If using a compound of the present invention in the
form of a tablet in suppository, the amount of active ingredient is 3.0-30.0 mg per
single dosage form. For tablets and suppositoria, any pharmaceutically suitable base
can be used as a pharmaceutical excipient.
[0062] To treat and prevent diseases and conditions connected with allergy, inflammation,
bronchial asthma, pulmonary emphysema, psoriasis, eczema, varicose veins, dysfunctional
disorders, imminent abortion, uterine bleedings, atherosclerosis, ischemic disease,
obesity, diabetes mellitus, infections (viral and bacterial ones), oncology, hepatic
lesions (hepatitis, cirrhosis), alcohol abuse, and toxic, radiation and herontological
lesions as well as, in cases of need, to speed up wound healing, to exert an adaptogenic
effect, to induce the hepatic P-450 cytochrome system, to modulate the metabolism
of arachidonic acid and adrenocortical hormones, to reduce the level of antigen-dependent
histamine secretion by mast cells, and to modulate the activity of macrophages, natural
killers, and the interferon systems (cytokines), the compounds of the present invention
as defined above can be administered orally, locally, parenterally, by inhalation
or rectally in the form of single dosage forms comprising standard, non-toxic pharmaceutically
acceptable carriers. The term "parenteral administration" as used herein, means subcutaneous,
intravenous, intramuscular or intrathoracic injections and infusions.
[0063] The compounds of the present invention can be administered once daily at doses 0.03
to 0.5 mg per 1 kg of body weight per day for 5 to 10 days.
[0064] It should be noted that the particular dose for each individual patient will depend
on many factors including the activity of the given compound being used, age, bodyweight,
gender, health condition and nutrition regimen of the patient time and method of the
therapeutic agent administration, the excretion rate of the agent from the body, the
particular combination of therapeutic agents being used as well as the severity of
disease being treated.
[0065] Dosage forms of the present invention can be produced using standard techniques.
[0066] It should be noted that the compounds of the present invention as defined above manifest
biological activity at doses which are two to three orders lower than those of the
known drugs used in comparative applications, in practically similar efficacy. Also,
no side effects were detected for the compounds of the present invention as defined
above and they have no contraindications for their use. At the same time, in toxicity
testing, LD
50 was not found since upon administration to animals (e.g. one of the compounds was
tested at an oral dose of 5000 µg/kg, and a parenteral dose of 10,000 µg/kg) death
of experimental animals was not observed.
[0067] The antihypoxic activity of the claimed compounds allows one to use them as antiischemic
agents, since it is known that lowered blood supply and hence, lower oxygen delivery
to the specific cardiac region, is the most important factor in necrosis focus development.
[0068] The ability of the claimed compounds to modulate biochemical and physiological systems,
i.e. the hepatic P-450 cytochrome system, hormonal background, and lipid peroxidation
system (LP) and antiradical activity, arachidonic acid metabolism, spontaneous and
antigen-stimulated histamine secretion by peritoneal mast cells, explains their pronounced
antiallergic and antiinflammatory, activity.
[0069] In addition, the endogenic rise in the level of precursors and glucocorticoid hormones
as effected by the test compounds, can be used in the therapy of diseases associated
with the reduced synthesis of these hormones in the body. Exogenic administration
of hormonal drugs is known, as a rule, to result in systemic complications and it
is a risk factor of the development of cancer diseases [
Parker K.L., Schimmer B.P. The Role of Nuclear Receptors in Steroid-Hormones Production.
Seminars in Cancer Biology (1994), Vol. 5, Iss. 5, pp. 317-325]. Also, it inhibits the synthesis of the respective hormones in the body. In particular,
a positive effect of using the claimed compunds can be predicted in pathological conditions
that are accompanied by a decrease in the level of corticosteroids: allergic and inflammatory
diseases, hepatic lesions of different etiology, and gynecological diseases. The detected
elevation in the amount of blood oxyprogesterone can be of importance in the therapy
of a number of gynecological diseases, such as infertility, imminent abortion, dysfunctional
uterine bleeding, etc. Since glucocorticoids and vasodilators are known for use in
the therapy of cutaneous manifestations of allergic diseases, as well as a number
of cutaneous diseases, including psoriasis, then the claimed compounds can be used
in the therapy of these diseases.
[0070] Since the claimed compounds possess the ability to alleviate the signs of allergic
and inflammatory reactions by local application, as well as to increase the synthesis
of endogenous antiaggregate agents - prostaglandin E
2 and prostacycline (6-keto-PGF
1), then their use is possible in the form of an ointment in treating varicose veins
development, wherein in the pathogenesis of the varicose veins development components
which cause inflammation, a rise in blood coagulation, etc are present.
[0071] Aging processes are known to be associated with oxidative stress accompanied by elevated
LP and as a sequence of this, MDA production, which, interacting with lysine of proteins,
forms a lipofuscine-like pigment. This probably speeds up lipofuscinosis, which causes
irreversible morphological shifts. Lowering of the MDA level by the claimed compounds
decreases the probability of the given pigment being produced, so can result in decreased
probability of age-dependent disease development. In addition, an increase in the
average lifetime of experimental animals can serve as confirmation of the possibility
to use the tested compounds in age-dependent diseases when low doses of Phenobarbital
are used. [see
Emanuel N.M., Obukhova L.K., Hajdich V.I., Murza L.I., Bunto T.V. Aging Inhibition
through Activation of the System of Microsomal Oxidases with Phenobarbital. Reports
of the USSR Academy of Sciences (1977(, Vol. 235, No 4, pp. 957-960]. The claimed compounds cause changes in the hepatic P-450 cytochrome system similar
to those caused by phenobarbital, and their effect on the body can result in a decrease
in the rate of aging. Herontological disorders, include such pathological conditions
as senile psychoses, cataract, senile changes in cutaneous teguments. The claimed
compounds can also be used for therapy of Parkinson is disease, cataracts, and senile
changes in cutaneous teguments, one of the pathogenesis links of which is oxidative
stress in the nervous tissue (increase in LP).
[0072] The claimed compounds possess a pronounced hepatoprotective effect. This effect of
the compounds is explained by the fact that upon their administration into the body,
a functional reconstruction of many central body systems participating in maintaining
homeostasis occurs. Thus allows their use in treating disorders caused by the effect
on the body of factors such as stress, physical load, ionizing radiation, in preventing
radiotherapy side effects, for activating reparation processes; in treating hepatic
diseases (cirrhoses, hepatites of different etiology); in treating the conditions
associated with intoxication by substances which activate lipid peroxidation, for
instance, in alcohol abuse; and as prophylactic drugs in industries connected with
the production of chemical reagents and exposure to toxic substances.
[0073] The claimed compounds can normalize the lipid metabolism parameters and they have
antihypoxic and antiischemic efficacy. This allows one to propose to use them in the
prophylaxis and therapy of diseases connected with lipid metabolism disorders characterized
by an elevation in the level of triglycerides, total cholesterol (CS), low and very
low density lipoptrotein cholesterol (LDL and VLDL) and by a decrease in the level
of high density lipoprotein cholesterol, i.e, diseases such as atherosclerosis, obesety,
ischemic heart and cerebral disease, myocardial infarction, stroke, risk factor for
diabetes mellitus, manifestation and thrombogenesis.
[0074] The homeostasis stabilizing effect of the claimed compounds serves as the basis for
recommending them for use in the therapy of diabetes mellitus.
[0075] The claimed compounds significantly inhibit the growth of a transplantable tumor
and its metastasizing process, and they elevate the resistance of animals to microbial
and viral infections.
[0076] The inhibition of tumor growth and metastasizing processes is connected with a number
of bioigical effects of the claimed compounds : with change in the P-450 cytochrome
system condition, with change in hormonal status, with the antioxidant and antiradical
properties of the claimed compounds, and with an increase in the activity of phagocytes
(neutrophils and peritoneal macrophages), natural killer cells and the production
of interferons (cytokines) under stress effect. This allows the use of the claimed
compounds in cancer therapy, since all the systems listed above are known to participate
in maintaining homeostasis in the body and to undergo significant changes with cancer.
Decreased 12-HETE production could be one more explanation for the antimetastatic
effect of the claimed compounds, since this arachidonic acid metabolite is known to
potentiate the process of metastasizing [
Honn K.V., Tang D.G., Gao X., Butovich I.A., Liu B., Timar J., Hagmann W. Cancer and
Metastasis Reviews (1994), Vol. 13, Iss. 3-4, pp. 265-396, Ref: 195]. An increase in prostacycline/thromboxane ratio could also play a role
in the antimetastatic effect of the claimed compounds. In addition, the compounds
rase the antitumor activity of cyclophosphane, which is widely used in cancer therapy.
An important characteristic of the claimed compounds is that they exhibit therapeutic
properties upon oral administration. In administering a dosage form, therapeutic activity
is comparable with the use of the substance. Decreasing the number of metastases is
of great practical importance since the rate of this process course is extremely important
and its inhibition results in a more favorable prognosis in cancerogenesis.
[0077] It has been established that normalization of the above mentioned parameters in animals
with administration of the claimed compounds, especially the rise in the number of
active peritoneal macrophages, the increase in the number of active. NK cells actively
participating in the immune body state maintenance under stress effects and the rise
in γ-interferon production which inhibits in vitro proliferation of the cells transformed
by virus, can explain the increase in animals resistance to microbial and viral infections.
The protective effect of the claimed compounds, via a cytodestructive effect on the
human immunodefficiency virus, should be especially emphasized. The antiviral effect
of the compounds can also be connected with lipid peroxidation normalization.
[0078] The ability of the claimed compounds to potentiate mitogen-simulated blasttransformation
of human lymphocytes, can serve as the basis for using the tested compounds in lesions
of cutaneous teguments, in particular, to speed up wound healing [
Koyama, Masayoshi, Takahashi, Mikiko, Yanagawa, Masayoshi EP 95-107298 950513;
JP 94-115161 940527. Production of L-lysyl-glycyl-L-histidine and therapeutic agents for wound
healing containing the same. Eur. Pat. Appl., 5 pp.].
[0079] Thus, the tested compounds of the present invention as defined above can be recommended
for use in the therapy of cancer diseases, bacterial and viral infections, and especially
HIV infection.
[0080] The broad spectrum of action of the claimed compounds can be partially explained
by the fact that these compounds act on the central body systems which stabilize homeostasis,
for instance, the P-450 cytochrome system, LP and phagocytosis system. A change in
the activity of one system in a live organism is known to be followed by changes in
the other systems, and these changes attain a cascade character. With administration
of the claimed compounds into the body, normalization of many bodily functions occurs.
Thus, the claimed compounds act as adaptogens.
[0081] The present invention relates to methods of therapy and prevention of diseases of
warm-blooded animals, the methods comprising administration of compounds of the present
invention as defined above in an efficient amount. Diseases and uses for compounds
of the present invention in this regard include: stress conditions, allergic diseases
of immediate and delayed type - bronchial asthma, food allergy, anaphylactic shock,
allergic eczemas as well as psoriasis, atherosclerosis, ischemic disease (of the heart
and brain), obesety, type 1 and 2 diabetes mellitus, alcohol abuse, alcohol intoxication,
varicose veins, prevention of thrombogenesis; hepatitis, hepatic cirrhosis; toxic
hepatic lesions; nervous system diseases, Parkinson's disease; herontological diseases:
cataract, senile change in cutaneous teguments; radiation injury, elimination of radiotherapy
consequences; viral and bacterial infections, in particular, SHIV infection; cancer
diseases; hard physical load; to speed up wound healing. The compounds of the present
invention as defined above can be used in medicine and veterinary practice for therapy
and prevention of the above listed diseases.
[0082] Specific examples are given to illustrate the present invention which should not
be considered as any limitation of the scope of the given invention.
[0083] The following abbreviations are used in the examples presented below:
AAS - active anaphylactic shock
AC - arachidonic acid
ALT - alanine aminotransferase
AN - activated neutrophils
AsA - ascorbic acid
AST - aspartate aminotransferase
AOF - active oxygen forms
HPLC - high performance liquid chromatography
DTH - delayed type hypersensitivity
ITH - immediate type hypersensitivit
HS - hexenal sleep
DMF - dimethyl formamide
MII - metastasizing inhibiton index
LD - lethal dose
LA - linolic acid
LO - lipoxygenase route
HDL - high density lipoproteins
LDL - low density lipoproteins
VLDL - very low density lipoproteins
LT - leukotrienes
MDA - malonic dialdehyde
MP - macrophages
NR - neutral red
NK - natural killer cells
NBT - nitroblue tetrazolium (formazan)
OVA - chicken ovalbumin
PG - prostaglandins
PCA - passive cutaneous anaphylaxis
PM- peritoneal macrophages
LP - lipid peroxidation
MLT - mean lifetime
FC - free cholesterol
TBA - thiobarbituric acid
TG - triglycerides
TGlu - transglutaminase
MC - mast cells
TMS - tetramethylsilane
TCA- trichloracetic acid
TX - thromboxane
TLC - thin layer chromatography
TCD - tissue cytopathic dose
P - phospholipids
PB - phenobarbital
PG - phagocytes
NS - normal saline
L - chemiluminescence
CS -cholesterol
CNS - central nervous system
CO - cyclooxygenase route
EDTA - ethylenediamide-tetraacetate
NMR - nuclear magnetic resonance
ButOH - tert-butanol
But - tert-butyl
Bzl - benzyl
Boc - tert-butyloxycarbonyl
DCC - N,N'- dicyclohexylcarbodiimide
DCU - N, N'- dicyclohexylurea
DMF - N, N - dimethylformamide
Et3N - triethylamine
EtOAc - ethylacetate
EtOH - ethanol
EET - epoxyeucozatrienic acid
GA - glutaric acid
Glu - glutamic acid
F - cortisol
HA - histamine
HETE - (S)-hydroxy-6,8,11,14-eucozatrienic acid
5-HT - 5-hydroxytryptamine (serotonin)
Ind - indol
Im - imidazol
MeCN - acetonitryl
MeOH - methanol
OBut - tert-butylic ether
ONSu - N-oxysuccinimidyl
OPfp - pentafluorophenyl
Py - pyridine
P-4508 - a group of P-450 cytochromes with active center, oriented into cytosol
P-450L - a group of P-450 cytochromes with active center, oriented into phospholipid
membrane
TrpA - tryptamine
TFA - trifluoracetic acid
Z - benzyloxycarbonyl
[0084] The glutamic acid, aspartic acid, histidine, tryptophan and ornithine derivatives
used in synthesis are the L-row derivatives unless D-derivative is especially indicated.
Individuality of the compounds produced is checked using TLC method on Silufol plates
of the Kavalier company, UV-254 (Czechoslovakia) in the solvent systems chorophorm-methanot
9:1 (1), chloroform-methanol 8:2 (2), n-butanol-acetic acid-water 4:1:5 (3); on Kieselgel
plates of the Merck company in the solvent systems chloroform-methanol-25% hydrous
ammonia 5:3:1 (4); on Silufol plates: chloroform-methanol 9,3:0,7 (5); chloroform-methanol-25%
hydrous ammonia 5:3:0,5 (6), chloroform-methanol 8,5:1,5 (7); isopropanol-water-25%
hydrous ammonia 6:3:1 (8), chloroform (9), on Kieselgel plates of the Merck company
in the solvent system isopropanol-water-25% hydrous ammonia 6:1:3 (10).
[0085] Chromatograms are developed with chlorotolidine solution, Pauly and Erlich reagents,
ninhydrine and in UV light.
[0086] The melting temperature of compounds is determined using the Boetius instrument (Germany).
[0087] The
1H-NMR spectra are taken on the Brucker WM-250 apparatus (Germany) and the Varian XL-400
(Japan) with TMS as an internal standard.
[0088] Mass-spectrometry is carried out on the MSBCh instrument (Sumy, Ukraine) using the
plasma-desorption ionization method with nuclear fragments of californium 252.
[0089] Analytical reversed phase HPLC is carried out under the conditions (1): the MPS-270
C-18 column (4,0 x 250 mm), 10 µm elution with 4% acetonitryl in water comprising
0,1% TFA; (2): the same column, elution with gradient from -10% to 50% of B phase
in A phase for 20 minutes; A phase - 0,1 % TFA in water, B phase - 0,09% TFA in the
mixture of acetonitryl and water 60:40; (3): the MPS-300 C-18T column (4,0 x 250 mm),
10 µm, elution with gradient from 0% to 40% of B phase in A phase for 20 minutes.
A phase - 0,1% TFA in water, B phase - 0,09% TFA in the mixture of acetonitryl and
water 60:40; (4) the MPS-270 C-18 column (4,0 x 250 mm), 10 µm, elution with 0,1M
Na
2HPO
4, pH 2,3; (5) : the same column, elution with 0,1M Na
2HPO
4, pH 2,7; (6) the Diasorb 130C18T column (4,0 x 150 mm), 7 µm, elution with gradient
from 0% to 42% acetonitryl in 0,1% TFA; (7) : the MPS-300 C-18T column (4,0 x 250
mm), 10 µm, elution with gradient from 0% to 18% acetonitryl in 0,1% TFA for 20 minutes;
(8) : the Lichrosorb RP-18 column (4,6 x 250 mm), 5 µm, elution with gradient from
6% to 24% acetonitryl in 0,1% TFA for.20 minutes; (9) : the Diasorb 130 C 16T column
(4,0 x 150 mm), elution 0,1% TFA; (10) : the Diasorb 130 C 16T column (4,0 x 150 mm),
7 µm, elution with gradient from 0% to 24% acetonitryl in 0,1% TFA for 30 minutes;
(11) : the same column, elution with gradient from 3% to 54% acetonitryl in 0,1% TFA
for 30 minutes; (12) : the same column, elution with gradient from 0% to 30% acetonitryl
in 0,1% TFA for 30 minutes; (13) : the MPS C18T column (4,6 x 250 mm), elution with
gradient from 12% to 60% acetonitryl in 0,1% TFA for 20 minutes; (14) : the MPS-270
column (4,0 -x 250 mm), 10 µm, elution with gradient from 0% to 60% acetonitryl in
0,1 % TFA for 20 minutes; (15) : the Diasorb 130 C 16T column (4,0 x 150 mm), 7 µm
elution with gradient from 0% to 60% acetonitryl in 0,1% TFA for 30 minutes; (16)
: the Diasorb 130 C 16T column (4,0 x 150 mm), 7 µm, elution with gradient from 60%
to 100% acetonitryl in 0,1% TFA for 15 minutes.
[0090] In all cases, HPLC is carried out at elution rate 1 ml/min with detection at 214
nm.
EXAMPLE 1
N-SUCCINYLHISTAMINE (II)
[0091] To 0,080 g (0,72 mM) histamine solution in 4 ml DMF, 0,072 g (0,72 mM) succinic anhydride
is added while stirring. The reaction mixture is stirred for 1 hour and left for 20
hours at 20°C. Solvent is removed under vacuum. Oily residue is dissolved in 1,5 ml
ethanol, 4 ml dry ether is added, ground and kept for 30 minutes at 4° C. The residue
is separated and recrystallized three times from methanol. Yield is 0,075 g (49,2%).
R
f 0,41 (4). Melting temperature 153-155°C. HPLC under the conditions (6): one peak,
retention time 7,77 minutes.
1H-NMR spectrum, (CD
3OD), δ, ppm : 2,42 (t, 2H, -CH
2CONH), 2.55 (t, 2H, HOOC-CH
2), 2.8 (t, 2H, β-CH
2-HA), 3.4 (t, 2H, α-CH
2-HA), 7.0 (s, 1H, CH-5-Im), 8.0 (s, 1H, CH-Im). Mass-spectr; m/z: [M+1H]
+ 212.2.
EXAMPLE 2
N-GLUTARYLHISTAMINE
[0092] To 0,366 g (3.3 mM) histamine solution in 5 ml DMF, 0,376 g (3.3 mM) glutaric anhydride
is added. The reaction mixture is stirred for 3 hours and left for 20 hours at 20°C.
White sediment is separated, dried under vacuum and recrystallized. Yield is 0,510
g (70,0%). R
r 0.36 (6), 0.34 (4). Melting temperature 187-189°C. HPLC under the conditions . (7):
one peak, retention time 14.36 minutes.
1H-NMR spectrum, (D
2O), δ, ppm : 1,72 (m; 2H, β-CH
2), 2.18 (m, 4H, α,γ-CH
2), 2.85 (t, 2H, β-CH
2-HA), 3.5 (t, 2H, α-CH
2HA), 7.25 (s, 1H, CH-5-Im), 8.5 (s, 1H, CH-2-Im). Mass-spectr.; m/z: [M+1H]
+ 226.1.
EXAMPLE 3
N-ADIPINYLHISTAMINE CHLOROHYDRATE (IV).
[0093] To a solution of 0,197 g (1.35 mM) adipinic acid in 2.5 ml DMF at 0°C, 0.278 g (1.35
mM) DCC is added. The reaction mixture is stirred at 0°C for 30 minutes and a solution
of 0.150 g (1.35 mM) histamine in 1 ml DMF is added and then the solution is left
at 20°C for 20 hours. DCU sediment is separated by filtration. 10 ml dry ether is
added to the reaction mixture and it is then left for 1 hour at 0°C. Oily residue
is dissolved in ethanol, and 0.2 ml 4M HCl in dioxane is added. Solvent is removed
under vacuum. The residue is washed with ether, dissolved in a 1.5:1 chloroform-ethanol
mixture and purified on a column with silicagel 40/100 (22x175 mm). Elution is done
with a chloroform-ethanol mixture from 7:3 to 2:8, ethanol, methanol and a 8:1:0,5
methanol-AcOH-H
2O mixture. The fractions containing the target substance with R
f 0,25 (6) are united and the solvent is removed under vacuum and dried over P
2O
5. Yield is 0,129 g (40%). R
f 0,25 (6). HPLC under the conditions (11): one peak, retention time 3.6 minutes.
1H-NMR spectrum, (CD
3OD), δ, ppm : 1.6 (m, 4H, β,γ-CH
2), 2.3 (m, 4H, α,γ-CH
2), 3.0 (t, 2H, β-CH
2-HA), 3.55 (t, 2H, α-CH
2-HA), 7.25 (s, 1H, CH-5-Im), 8.65 (s, 1H, CH-Im).
EXAMPLE 4
N-ACETHYL-γ-L-GLUTAMYLHISTAMINE (V)
[0094] To 0.10 (0.405 mM) γ-L-glutamylhistamine, 5 ml water is added and stirred until dissolution
of the basic substance mass has occured. 2.5 ml dioxane and 0.073 g (0.405 mM) p-nitrophenyl
acetate are added to the reaction mixture, which is then stirred for 2 hours and left
for 18 hours at 20°C. The solvent is removed under vacuum at 40°C. The residue is
dissolved in the minimum amount of methanol and purified using column chromatography
on Kieselgel 60, eluted with methanol. The fractions containing the target substance
with R
f 0.3 (4) are united and the solvent is removed under vacuum. A colorless glassy substance
is produced. Yield is 0.046 g (40.0%). R
f 0.3 (4). HPLC under the conditions (3): one peak, retention time 10.77
1minutes.
1H-NMR spectrum, (CD
3OD), δ, ppm : 2.0-2.3 (m, 2H, β,-CH
2), 2.19 (s, 3H, CH
3CO), 2.45 (t, 2H, γ-CH
2), 3.07 (t, 2H, β-CH
2-HA), 3.64 (t, 1H, α-CH
AH
B-HA), 3.65 (t, 1 H, α-CH
AH
B-HA), 4.42 (t, 1H, α-CH), 7.42 (d, 1H, CH-5-Im), 8.69 (d, 1H, CH-2-Im).
EXAMPLE 5
5.1. Nα-TERT-BUTYLOXYCARBONYL-α-BENZYL-L-GLUTAMYL-L-HISTIDINE METHYL ESTER (VIa)
[0095] To a solution of 0,30 g (1.16 mM) L-histidine methyl ester dihydrochloride in 4 ml
anhydrous methanol, which has been produced by heating to 40°C with subsequent cooling
to 0°C, cold sodium methylate solution produced from 0.053 g metallic sodium (2.32
mM) and 1 ml methanol is added and then the reaction mixture is left for 20 minutes
at 0°C. Then an equal volume of dry ether is added and left for 20 minutes at 0°C.
Sodium chloride sediment is separated and the solvent is removed from the filtrate
under vacuum. The residue is dissolved in 3.5 ml DMF and 0.604 g (1.16 mM) Boc-L-Glu
(OPfp) - OBzl. The reaction mixture is stirred for 2 hour and left four 20 hours.
The DMF is removed under vacuum. The oily residue is purified on a column 30x1.6 cm
with silicagel 100/160; eluted with chloroform:methanol mixture (9:1). The fractions
containing the target substance are united and the solvent is removed under vacuum.
The target substance is dried over P
2O
5. Yield is 0.334 g (55.0%). R
f 0.35 (1).
1H-NMR spectrum, (CD
3OD) : 1.45 (s, 9H, (CH
3)
3C), 2.0 (m, 2H, β-CH
2), 2.3 (t, 2H, γ-CH
2), 3.0 (d; 2H, β-CH
2His), 3.7 (s, 3H, CH
3O), 4.1 (t, 1H, α-CH), 4:55 (t, 1H, α-CH-His), 5.15 (m, 2H; CH
2-Bzl), 6.85 (s, 1H, CH-5-Im), 7.35 (m, 5H, C
6H
5-Bzl), 7.6 (s, 1H, CH-2-Im).
5.2. γ-L-GLUTAMYL-HISTIDINE METHYL ESTER DIHYDROCHLORIDE (VI)
[0096] To a solution of 0,30 g Boc-L-Glu (HisOMe) - OBzl (Vi
a) in 1 ml MeOH, 3 ml 4M N hydrochloride in dioxane is added. In 30 minutes 5 ml dry
ether is added. The solvents are removed under vacuum, then dry ether is added and
also removed under vacuum. The residue is ground with dry ether, then the ether is
separated by decantation. The resulting white solid substance is dried over P
2O
5 under vacuum. 0.25 g 2HCl•L-Glu (HisOMe) - OBzl is produced.
[0097] To a solution of 0.140 g of the produced substance in 4.5 ml anhydrous methanol,
0.10 g 10% palladium on activated carbon is added and the solution is stirred for
2.5 hours with an air flow periodically passed through it. The catalyst is separated
by using a filter and washing with MeOH. The solvent is removed from the united filtrate
under vacuum. Dry ether is added to the residue and also removed under vacuum. The
substance is dried under vacuum over P
2O
5- Yield is 0,103 g . (90,3%). R
f 0.35 (6). HPLC under the conditions (9): one peak, retention time 6.16 minutes.
1H-NMR spectrum, (D
2O), δ, ppm : 2.15 (m, 4H, β-CH
2), 2.55 (t, 2H, γ-CH
2), 3.15 (t, 1H, α-CH), 3.75 (s, 3H, CH
3O), 4.0 (t, 1H, α-CH-His), 4.8 (d, 2H, β-CH
2-His), 7.4 (s, 1H, CH-5-Im), 8.81 (s, 1H, CH-2-Im). Mass-spectr; m/z: 299.1.
EXAMPLE 6
N-GLUTARYL--L-HISTIDINE METHYL ESTER (VII)
[0098] To a solution of 0,30 g (1.16 mM) L-histidine methyl ester dihydrochloride in 4 ml
anhydrous, methanol which has been produced by heating to 40°C with subsequent cooling
to 0°C, cold sodium methylate solution produced from 0.053 g (2.32 mM) metallic sodium
and 1 ml methanol is added. The reaction mixture is left for 30 minutes at 0°C, then
an equal volume of dry ether is added and the reaction mixture is left for 20 hours
at 20°C. Sodium chloride sediment is separated under vacuum. The residue is dissolved
in 3.5 ml DMF and 0.132 g (1.16 mM) glutaraldehyde is added. The reaction mixture
is stirred for 2 hours and left for 20 minutes at 20°C. The solvent is removed under
vacuum. The oily residue is purified on a column (30x.1.6 cm) with silicagel 100/160,
eluted with methanol. The fractions containing the target substance are united. The
solvent is removed under vacuum and dried over P
2O
5 under vacuum. Yield is 0,095 g (28%). R
f 0.43 (10). HPLC under the conditions (8): one peak, retention time 9.95 minutes.
1H-NMR spectrum, (D
2O), δ, ppm : 1.85 (m, 2H, β-CH
2), 2.25 (t, 4H, α, γ-CH
2), 3.05 (d, 2H, β-CH
2-His), 3.7 (s, 3H, CH
3O), 4.67 (t,1H, α-CH-His), 6.92 (s, 1H, CH-5-Im), 7.72 (s, 1H, CH-2-Im). Mass-spectr;
m/z: 284.4.
EXAMPLE 7
7.1. N-BENZYLOXYCARBONYL-γ-AMINOBUTRIC ACID PENTAFLUOROPHENYL ESTER (VIIIa)
[0099] To 0.60 g (2.53 mM) N-benzyloxycarbonyl-γ-aminobutyric acid, 9 ml anhydrous ethylacetate
is added, and the reaction mixture is stirred and cooled to 0°C. 0.52 g (2.53 mM)
DCC and 0.465 (2.53 mM) pentafluorophenol are added. The reaction mixture is stirred
for 2 hours, then left for 20 hours at 20°C. The DCU residue is separated and washed
with anhydrous ethylacetate. The filtrates are united and solvent is removed under
vacuum. White, slightly yellowish Z-γ-Abu-OPfp crystals are produced, which are dried
under vacuum. Yield is 1.05 g (98.0%). R
f 0.85 (1).
7.2. N-(BENZYLOXYCARBONYL-γ-AMINOBUTYRYL)-L-HISTIDINE METHYL ESTER (VIIIb)
[0100] To 0.30 g (1.16 mM) L-histidine methyl ester dichlorohydrate, 4 ml anhydrous histidine
is added and the reaction mixture is heated until dissolution occurs. The solution
is cooled to 0°C and cooled sodium methylate solution, produced from 0.053 g (2.32
mM) metallic sodium and 1 ml anhydrous methanol, is added. The reaction mixture is
left at 0°C for 20 minutes, an equal volume of dry ether is added, and then the mixture
is left for 20 minutes at 20°C. The sodium chloride residue is separated. The solvent
is removed from the filtrate under vacuum. To the oily residue, 5 ml anhydrous DMF
and 0.50 g (1.24 mM) Z-γ-Abu-OPfp are added, and the mixture is left for 20 hours
at 20°C. The solvent is removed under vacuum. The sodium chloride residue is separated.
The solvent is removed from the filtrate under vacuum. To the oily residue, 5 ml DMF
and 0.50 g (1.24 mM) Z-γ-Abu-OPfp are added and the mixture is left to 20 hours at
20°C. The solvent is removed under vacuum. The residue is purified using column chromatography
on silicagel L 40/100, eluted with chloroform, wherein there is a methanol gradient
in the chloroform to the ratio of 2:8. The fractions containing the target substance
with R
f 0,46 (2), are united and the solvent is removed under vacuum. Excess dry ether with
1 drop of triethylamine is added to the produced residue and it is ground. A white
solid substance is separated, washed with dry ether and dried under vacuum. Yield
is 0,243 g (65.0%). R
f 0,46 (2). Mass-spectrum, m/z: 375.
7.3. γ-AMINOBUTYRYL-L-HISTIDINE METHYL ESTER (VIII).
[0101] To 0.04 g (0.124 mM) Z-γ-Abu-L-His-OMe 7 ml anhydrous methanol, 0.04 g 10% palladium
on activated carbon is added and the reaction mixture is hydrated for 1 hour while
stirring. Following complete conversion of the original substance with R
f 0.46 (2), into the target product with R
f 0 (2), the catalyst is separated washed with methanol. The filtrates are united and
the solvent is removed under vacuum. A colorless viscous oil is produced. Yield is
0,030 g (90.0%). R
f 0.05 (3), R
f 0.1 (4). HPLC under the conditions (1): one peak, retention time 4.8 minutes.
1H-NMR spectrum, (D
2O), δ, ppm : 1.85 (m, 2H, β-CH
2), 2.23 (t, 2H, γ-CH
2), 2.95 (d, 2H, β-CH
2-His), 3.1 (t, 2H, α-CH
2), 3.7 (s, 3H, CH
3O), 4.65 (t, 1H, α-CH-His), 6.85 (s, 1H, CH-5-Im), 7.6 (s, 1H, CH-2-Im).
EXAMPLE 8
8.1. Nα-TERT-BUTYLOXYCARBONYL-α-BENZYL-L-GLUTAMYL HISTIDINE (IXa)
[0102] To a solution of 0.100 g (0.645 mM) L-histidine in 3 ml water, 0.75 ml dioxane is
added while stirring and then 0.560 g (1.29 mM) Boc-L-Glu (ONSu) OBzl and 2.25 ml
dioxane are added in portions for 2 hours (until the dioxane to water ratio is 1:1).
The resulting suspension is stirred for 2 hours and left for 20 hours at 20°C. Then,
the suspension is transformed into solution. The solvent is removed under vacuum.
The oily residue is purified on a column 30 x 1.6 cm with silicagel 100/160, eluted
with a 5:1 chloroform-methanol mixture, gradually increasing the MeOH content up to
50%. The fractions containing the target substance are united. The solvent is removed
under vacuum. A white solid substance is produced. Yield is 0,150 g (45.7%). R
f 0.48 (3).
1H-NMR spectrum, (CD
3OD), δ, ppm : 1.4 (s, 9H, (CH
3)
3C), 1.98 (m, 2H, β-CH
2), 2.3 (t, 2H, γ-CH
2-Glu), 3.1 (m, 2H, β-CH
2-His), 4.07 (t, 1H, α-CH), 4.5 (t, 1H, α-CH-His), 5.18 (m, 2H, CH
2 -Bzl), 7.17 (s, 1H, CH-5-Im), 7.35 (m, 5H, C
6H
5), 8.4 (s, 1H, CH-2-Im).
8.2. γ-L-GLUTAMYL HISTIDINE α-METHYL ESTER DICHLOROHYDRATE (IX)
[0103] To a solution of 0.140 g Boc-L-Glu (His)-OBzl (IX
a) in 1 ml anhydrous methanol, 3 ml 4 N hydrochloride in dioxane is added and the mixture
is kept at 20°C for 40 minutes. Ether is added to the reaction mixture and solvents
are removed under vacuum. The sediment is ground with ether until a white solid substance
is formed. The ether is decanted and the residue is dried under vacuum and purified
with preparative paper chromatography in the butanol-acetic acid-water system 4:1:5,
upper phase. 0.12 g (95.8%) dichlorohydrate dipeptide are produced, R
f 0.26 (3). To a solution of 0.117 g of the obtained product in 4.5 ml anhydrous methanol,
0.096 g 10% palladium on activated coal is added. The reaction mixture is stirred
for 2.5 hours, with hydrogen flow being periodically passed through it. The catalyst
is separated by using a filter and washing with 5 ml MeOH. The filtrates are united
and the solvent is removed under vacuum. The residue is dried under vacuum over P
2O
5. Yield is 0,091 g (96,1%). R
f 0,3 (6). HPLC under the conditions (10): one peak, retention time 5,40 minutes. Mass-spectr;
m/z: 299.2.
1H-NMR spectrum, (CD
3OD), δ, ppm : 2,15 (m, 2H, β-CH
2), 2.55 (t, 2H, γ-CH
2), 3.16 (t, 1H, α-CH), 3.75 (s, 3H, CH
3O), 3.99 (t, 1H, α-CH-His), 4.8 (dd, 2H, β-CH
2-His), 7.38 (s, H, CH-5-Im), 8. 80 (s, H, CH-2-Im).
EXAMPLE 9
9.1. N-(BENZYLOXYCARBONYL-γ-AMINOBUTYRYL)TRYPTAMINE (Xa)
[0104] To a solution of 0.252 g (0.625 mM) Z-γ-Abu-OPfp in 5 ml DMF, 0.10 g (0.625 mM) tryptamine
is added and the reaction mixture is stirred at 25°C for 2 hours. The reaction mixture
is than left for 16 hours at the same temperature, after which a 7-fold excess (by
volume) of water is added. A white coagulated sediment is filterred off, washed on
a filter with water and dried. Yield is 0.22 g (93.0%). R
f 0.6 (5), R
f 0.54 (3). Mass-spectr, m/z: 380.6
9.2. γ-AMINOBUTYRYLTRYPTAMINE (X)
[0105] To 0.133 g (0.35 mM) Z-γ-Abu-TrpA, 7 ml anhydrous methanol is added and the mixture
is stirred until dissolution of the basic substance mass occurs. To the resulting
product, 0.133 g 10% palladium on activated coal is added and the reaction mixture
is hydrated for 1 hour. Following complete conversion of the initial substance with
R
f 0.6 (5) into the target product with R
f 0 (5), the catalyst is separated and the product is washed with methanol. The filtrates
are united and the solvent is removed under vacuum. A colorless viscous oil is produced.
Yield is 0,086 g (99.0%). R
f 0,43 (3). HPLC under the conditions (2): one peak, retention time 18.5 minutes.
1H-NMR spectrum, (CD
3OD), δ, ppm : 1,65 (m, 2H, β-CH
2), 2,05 (t, 2H, γ-CH
2), 2.85 (t, 2H, β-CH
2TrpA), 3.0 (t, 2H, α-CH
2), 3.45 (m, 2H, α-CH
2-TrpA), 6,95 (s, 1H, CH-2-Ind), 6.99 (m, 1H, CH-5-Ind), 7.05 (m, 1H, CH-6-Ind), 7.28
(d, 1H, 1H, CH-7-Ind), 7.48 (d, 1H, 1H, CH-4-Ind).
EXAMPLE 10
N-GLUTARYL-O-BENZYLSEROTONIN (XI)
[0106] To a suspension of 0.20 g (0.66 mM)O-benzyl serotonin chlorohydrate in 3 ml DMF,
0.09 ml (0.66 mM) triethylamine is added while stirring and then 0.075 g (0.66 mM)
glutaranhydride. The reaction mixture is stirred for 1 hour and left for 20 hours
at 20°C. The sediment of triethylamine chlorohydrate is separated and the solvent
is removed under vacuum. The oily residue is purified on a column 31 x 1.5 cm with
silicagel Silica gel 60, 0.063-0.2 mm (Merck). Elution with a 9:1 chloroform-methanol
mixture is done. Fractions containing the target product are united and the solvent
is removed under vacuum. A colorless glassy product is obtained. Yield is 50 mg (20%).
R
f 0,48 (1). HPLC under the conditions (14): one peak, retention time 23.8 minutes.
1H-NMR spectrum, (CD
3OD) δ, ppm : 2.05 (m, 2H, β-CH
2-GA), 2,45 (m, 4H, α,γ-CH
2-GA), 3.1 (t, 2H, β-CH
2), 3.67 (t, 2H, α-CH
2), 5.3 (s, 2H, CH
2-Bzl), 7.0 (dd, 1H, CH-6-Ind), 7.1-7.7 (m, 8H, CH-7-Ind, CH-2-Ind, CH-4-Ind, C
6H
5).
EXAMPLE 11
N-GLUTARYLSEROTONIN (XII)
[0107] To 25 mg (0.065 mM) glutaryl-O-benzyl serotonin, 4 ml anhydrous methanol is added.
To the resulting solution, 30 mg of a catalyst - palladium on activated coal is added
and the reaction mixture is hydrated for 1 hour while stirring. The catalyst is filterred
out. The solvent is removed from the filtrate under vacuum. Yield is 17 mg (90%).
R
f 0,31 (1). HPLC under the conditions (14): one peak, retention time 16.27 minutes.
1H-NMR spectrum, (CD
3OD), δ, ppm : 2.0 (m, 2H, β-CH
2-GA), 2.5 (m, 4H, α,γ-CH
2-GA), 3.0 (t, 2H, β-CH
2), 3.65 (t, 2H, α-CH
2), 6.85 (dd, 1H, CH-6-Ind), 7.15 (d, 1H, CH-4-Ind), 7.25 (s, 1H, CH-2-Ind) 7.4 (d,
1H, CH-7-Ind).
EXAMPLE 12
N-GLUTARYL-5-O-METHYLSEROTONIN (XIII)
[0108] To a solution of 0.20 g (1.05 mM) O-methyl serotonin in 3 ml DMF, 0.12 g (1.05 mM)
glutaricanhydride is added while stirring. The reaction mixture is stirred for 1 hour
and left for 20 hours at 20°C. The solvent is removed under vacuum. The oily residue
is purified on a column 31 x 1.5 cm with silicagel Silica gel 60, 0.063-0.2 mm (Merck).
Elution with a 9:1 chloroform-methanol mixture is done. Fractions containing the target
product are united and the solvent is removed under vacuum. A colorless glassy product
is obtained. Yield is 0.095 g (29.8%). R
f 0.51 (1). HPLC under the conditions (14): one peak, retention time 19.0 minutes.
1H-NMR spectrum, (CDCl
3+CD
3OD), δ, ppm : 1.95 (m, 2H, β-CH
2-GA), 2,37 (m, 4H, α,γ-CH
2-GA), 3.0 (t, 2H, β-CH
2), 3.56 (t, 2H, α-CH
2), 3.92 (s, 3H, CH
3O), 6:83 (dd, 1H, CH-6-Ind), 7.1 (d, 2H, CH-2,4-Ind), 7.31 (d, 1H, CH-7-Ind).
Example 13
N-GLUTARYLTRYPTAMINE (XVII)
[0109] To a solution of 0.15 g (0.94 mM) tryptamine in 3 ml DMF, 0.107g (0.94 mM) glutaricanhydride
is added while stirring. The reaction mixture is stirred for 1 hour and left for 20
hours at 20°C. The solvent is removed under vacuum. The oily residue is purified on
a column 31 x 1.5 cm with silicagel Silica gel 60, 0.063-0.2 mm (Merck). Elution with
a 9:1 chloroform-methanol mixture is done. Fractions containing the target product
are united and the solvent is removed under vacuum. A colorless glassy product is
obtained. Yield is 0.2 g (78%). R
f 0.41
(I). HPLC under the conditions (14): one peak, retention time 18.95 minutes.
1H-NMR spectrum, (CDCl
3+CD
3OD), δ, ppm : 1.90 (m, 2H, β-CH
2), 2,27 (dt, 4H, α,γ-CH
2), 2.95 (t, 2H, β-CH
2-TrPA), 3.50 (t, 2H, α-CH
2-TrpA), 7.0 (d, 1H, CH-7-Ind), 7.55 (d, 1H, CH-4-Ind).
EXAMPLE 14
N-GLUTARYL-4-(2-AMINOETHYL)MORPHOLINE (XIV)
[0110] To a solution of 0.5 g (4.39 mM) glutaricanhydride in 1 ml DMF, 0.57 ml (4.39 mM)
4-(2-aminoethyl) morpholine is added while stirring and cooling. The reaction mixture
is stirred for 30 minutes and left for 20 hours at 20°C. The solvent is removed under
vacuum. The oily residue is washed with ether, the solvent is removed under vacuum,
then the residue is dried and left at +4°C for 20 hours. The formed crystallize substance
is washed and ground with ether (3 x 1.5 ml) and then acetone (4x1.5 ml), then separated
from the solvents and dried under vacuum. Yield is 0.265 g (24.8%). R
f 0.41 (6). HPLC under the conditions (11): one peak, retention time 3.93 minutes.
1H-NMR spectrum, (CD
3OD), δ, ppm : 0.5 (m, 2H, β-CH
2-GA), 0.9 (m, 4H, α,γ-CH
2-GA), 1.3 (m, 8H, CH
2-2,3,5,6-morpholinyl), 2.0 (t, 2H, β-CH
2), 2.38 (t, 2H, α-CH
2).
EXAMPLE 15
N-GLUTARYL-2-(2-AMINOETHYL)PYRIDINE (XV)
[0111] To a solution of 0.3 g (2.63 mM) glutaricanhydride in 1 ml DMF, 0.315 ml (2.63 mM)
2-(2-aminoethyl) pyridine is added while stirring and cooling with water. The reaction
mixture is stirred for 1 hour and left for 20 hours at 20°C. The white sediment is
filterred off, washed many times with ether and acetone, and dried. Yield is 0.29
g (46.7%). R
f 0.27 (1). HPLC under the conditions (12): one peak, retention time 14.33 minutes.
1H-NMR spectrum, (CD
3OD), δ, ppm: 0.41 (m, 2H, β-CH
2-GA), 0.81 (m, 4H, α,γ-cH
2-GA), 1.6 (t, 2H, β-CH
2), 2.15 (t, 2H, α-CH
2), 5.9 (m, 2H, CH-4,5-pyridinyl), 6.4 (m, 1H, CH-3-pyridinyl), 7.05 (m, 1H, CH-6-Py).
EXAMPLE 16
N-GLUTARYLPHENYLETHYLAMINE (XVI)
[0112] To a solution of 0.5 g (4.39 mM) glutaricanhydride in 1 ml DMF, 0.55 ml (4.39 mM)
phenylethylamine is added while stirring and cooling with water. The reaction mixture
is stirred for 30 minutes, then left for 20 hours at 20°C. The solvent is removed
under vacuum and the residue is purified on a column 25 x 230 mm with Kieselgel 40
for column chromatography ("Fluka"). Elution with a chloroform: -chloroform: MeOH
(9:1) mixture is done. Fractions containing the target product with R
f 0.57 (1) are united, and dried following solvent removal under vacuum. Yield is 1.02
g (99%). HPLC under the conditions (13): one peak, retention time 15.12 minutes.
1H-NMR spectrum, (CD
3OD), δ, ppm: 1.9(m, 2H, β-CH
2-GA), 2.15 (m, 4H, α,γ-CH
2-GA), 2.8 (t, 4H, α,γ-CH
2-GA), 7.2 (m, 5H, C
6H
5).
EXAMPLE 17
CYCLOHEXYLCARBONYLHISTAMINE (XXIX)
[0113] To 700 mg (3.85 mM) histamine dichlorohydrate, 9 ml anhydrous methanol is added and
the mixture is heated up to 50°C and stirred until dissolution occurs, then cooled
to 0°C. To the resulting solution 1.42 ml (7.7 mM) sodium methylate solution in methanol
is added. The mixture is kept at 0°C for 20 minutes and then an equal volume of anhydrous
ether is added and the mixture kept for 20 minutes at 0°C. The NaCl sediment is separated.
The solvent is removed from the filtrate under vacuum. The oily residue is dissolved
in 5 ml DMF and cooled to +5°C 0.537 ml (3.85 mM) triethylamine is added to the solution
while stirring and then 0.52 ml (3.85 mM) cyclohexane carbonic acid chloroanhydride
is added. The reaction mixture is stirred for 1 hour and then the white sediment is
separated. The solvent is removed from the filtrate under vacuum. The product is crystallized
from 2 ml acetone with adding triethylamine. The sediment is separated, washed with
2 ml of ether and acetone (1:1) mixture and 2 ml methanol with acetone (1:1) with
the addition of triethylamine. R
f 0.57 (7). Yield is 184 mg (52%). HPLC under the conditions (1): one peak, retention
time 18.05 minutes.
1H-NMR spectrum, (CD
3OD), δ, ppm: 1.36-1.78 (m, 10H, (CH
2)
5 - cyclohexane), 2.18 (m, 1H, >CH-CO-), 2.8 (t, 2H, β-CH
2-HA), 3.41 (t, 2H, α-CH
2-HA), 6.85 (s, 1H, 5-CH-Im), 7.6 (s, 1H, 2-CH-Im).
EXAMPLE 18
N-CYCLOHEXYLCARBONYLTRYPTAMINE (XXX)
[0114] To a solution of 0,20 g (1.25 mM) tryptamine in 2.5 ml dimethyl formamide, 0.17 ml
(1.25 mM) triethylamine and 0.17 ml (1.25 mM) cyclohexanoyl chloride are added while
vigorously stirring. The reaction mixture is stirred for 1.5 hours in darkness and
then 10 ml 5% Na
2CO
3 solution is added and the mixture is stirred for an additional 30 minutes. The obtained
emulsion is extracted with 2 x 15 ml ethylacetate. The ethylacetate extracts are united,
washed with 30 ml water and dried over anhydrous Na
2SO
4. The solvent is removed under vacuum. The oily residue is purified on a column with
silicagel Kieselgel 60 with particle size 0.035-0.07 mm (Fluka company) with elution
by gradient of solvents chloroform-chloroform:methanol (9:1). The fractions containing
the target product are united and the solvent is removed under vacuum. Yield is 0.068
g (20.3%). R
f 0.63 (1). HPLC under the conditions (15): one peak, retention time 32.7 minutes.
1H-NMR spectrum, (CDCl
3), δ, ppm: 1.1-1.85 (m, 10H, (CH
2)
5-cyclohexane), 2.0 (m, 1H, CH-), 2.97 (t, 2H, β-CH
2-TA), 3.6 (t, 2H, α-CH
2-TA), 7.0 (s, 1H, 2-CH-Ind), 7.1 (t, 1H, 5-CH-Ind), 7.2 (t, 1H, 6-CH-Ind), 7.4 (d,
1H, 4-CH-Ind), 7.6 (d, 1H, 7-CH-Ind).
EXAMPLE 19 (COMPARATIVE EXAMPLE)
N-HEXANOYLTRYPTAMINE (XXXI)
[0115] To a solution of 0,20 g (1.25 mM) tryptamine in 2.5 ml dimethyl formamide, 0.18 ml
(1.25 mM) triethylamine and 0.17 ml (1.25 mM) hexanoyl chloride are added while vigorously
stirring. The reaction mixture is stirred for 1.5 hours in darkness and then 10 ml
5% Na
2CO
3 solution is added and the stirring continued for an additional 30 minutes. White
sediment is separated and washed on a filter with 2 x 4 ml water, 2 x 4 ml hydrochloric
acid and 3 x 4 ml water and then dried under vacuum over P
2O
5. The obtained product is then purified on a column with silicagel Kieselgel 60 with
particle size 0.063-0.2 mm (Merck company) with elution by a gradient of solvents
chloroform-chloroform:methanol (9:1). The fractions containing the target product
are united and the solvent is removed under vacuum. Yield is 0.108 g (33.4%). R
f 0.54 (1). HPLC under the conditions (15): one peak, retention time 33.13 minutes.
1H-NMR spectrum, (CDCl
3), δ, ppm: 1.9 (t, 3H, CH
3 -), 1.25 (m, 4H, (CH
2)
2-hexanoyl), 1.6 (m, 2H, β-CH
2- hexanoyl), 2.15 (t, 2H, α-CH
2-hexanoyl ), 3.0 (t, 2H, β-CH
2-hexanoyl ), 3.6 (t, 2H, α-CH
2-TA), 7.0 (s, 1H, 2-CH-Ind), 7.1 (t, 1H, 5-CH-Ind), 7.2 (t, 1H, 6-CH-Ind), 7.4 (d,
1H, 7-CH-Ind), 7.6 (d, 1H, 4-CH-Ind).
EXAMPLE 20
N-HEXANOYL-L-TRYPTOPHANE METHYL ESTER (XXXII)
[0116] To a solution of 0,40 g (1.57 mM) HCl
•H-Trp-Ome in 2.5 ml dimethyl formamide, 0.44 ml (3.14 mM) triethylamine and 0.216
ml (1.57 mM) hexanoyl chloride are added while stirring. After cooling the reaction
mixture with ice 2,5 hours 20 ml 5% Na
2CO
3 solution is added and the mixture is stirred for 10 minutes. The product is extracted
with 2 x 25 ml ethyl acetate. The united ethyl acetate extracts are washed with an
equal volume of water and dried under anhydrous Na
2SO
4. The solvent is removed under vacuum. The oily residue is purified on a column with
silicagel Kieselgel 60 with particle size 0.063-0.2 mm (Fluka company), with elution
by a gradient of solvents chloroform-chloroform:methanol (9,5:0,5). The fractions
containing the target product are united and the solvent is removed under vacuum.
Yield is 0.138 g (27.7%). R
f 0.79 (1). HPLC under the conditions (16): one peak, retention time 6.92 minutes.
1H-NMR spectrum, CDCl
3), δ, ppm: 0.9 (t, 3H, CH
3 -), 1.24 (m, 4H, γ,δ, -CH
2 -hexanoyl), 1.57 (m, 2H, β-CH
2-), 2.13 (t, 2H, α-CH
2-), 3.31 (d, 2H, β-CH
2-Trp), 3.7 (s, 3H, CH
3O-), 4.96 (t, 1H, α-CH-Trp), 7.0 (s, 1H,2-CH-Ind),7.12 (m, 2H, 5-CH,6-CH-Ind), 7.33-7.53
(dd, 1H, 4,7-CH-Ind).
EXAMPLE 21
N-(IMIDAZOLYL-4-ACETHYL)-HEPTHYLAMINE(XXXIII)
[0117] To a solution of 0.30 g (1.84 mM) imidazolacetic acid chlorohydrate in 2.5 ml DMF,
0.248 g (1.84 mM) 1-oxybenzotriazole and 0.38 g (1.84 mM) dicyclohexylcarbodiimide
are added while stirring and cooling with ice. The reaction mixture is then stirred
for 1 hour and left for 20 hours at +4°C. The dicyclohexylurea sediment is separated
and the solvent is removed from the filtrate under vacuum. The fractions containing
the target product are united, and the solvent is removed under vacuum. Yield is 0.12
g (29%). R
f 0.39 (1). HPLC under the conditions (15): retention time of individual substance
is 28.01 minutes.
1H-NMR spectrum, (CDCl3), δ, ppm: 0.9 (t, 3H, CH
3-), 1.3 (m, 10H, -(CH2)
5-), 1.8 (t, 2H, α-CH
2-), 3.0 (s, 2H,-CH
2-), 7.6 (s, 1H, 5-CH-Im), 8.2 (s, 1H, 2-CH-Im). Mass-spectrum: [M+1H]
+, m/z:224.
EXAMPLE 22
22.1 Nα-TERT.-BUTYLOXYCARBONYL-β-ALANINE BENZYL ESTER
[0118] A solution of 0.8 g (5.29 mM) Boc-β-Ala in 4 ml ethanol is added to a solution of
1.38 g (5.29 mM) cesium carbonate in water. The solvent is removed under vacuum. The
oily residue is dried under vacuum until 1.45 g glassy residue of cesium Boc-β-Ala
salt is formed, which then is dissolved in 10 ml DMF. 0.538 ml (4.53 mM) benzyl bromide
are to the solution added while stirring and cooling, and then the mixture is stirred
for a further 1,5 hours. The cesium bromide sediment is separated and the solvent
is removed from the filtrate under vacuum. The oily residue is purified with column
chromatography on silicagel with elution by chloroform. 0.70 g (55.0%) Boc-β-Ala benzyl
ester are produced. R
f 0.27 (9).
22.2 N -BENZYLOXYCARBONYIL-HSTIDYL-β-ALANINE BENZYL ESTER
[0119] To 60 g (2.15 mM) Boc-β-Ala-OBzl, 3.5 ml 4N HCl solution in dixane is added and the
mixture is for 40 minutes. Then 3x5 ml anhydrous ether is added and the solvent is
removed under vacuum. The oily residue is dissolved in 3,5 ml DMF, and triethylamine
is added up to pH 8. 0.622 g (2.15 mM) Z-L-His and 1.63 g (2.15 mM) "F complex" are
added while cooling with ice and stirring. The reaction mixture is then stirred at
0°C for a further 1 hour and then left for 20 hours at +4°C. The dicyclohexylurea
sediment is separated and the solvent is removed from the filtrate under vacuum. The
oily residue is dissolved in acetone and triethylamine is added up to pH 9. The solvent
is removed under vacuum and the residue is purified on a column with silicagel in
a gradient of solvents chloroform-chloroform: methanol (9,5:0<5). 0.170 g of white
solid substance is produced. R
f 0.44(1).
22.3 N-L-HISTIDYL-β-ALANINE (XXXVI)
[0120] To a solution of 0.14 g Z-L-His-β-Ala-OBzl in 3 ml methanol, 0.1 g 10% palladium
on coal is added and the reaction mixture is stirred for 1,5 hours, with hydrogen
flow being periodically passed through it. The catalyst is separated, the solvent
is removed under vacuum, and the residue is then dried. Yield is 0.085 g (98%). R
f 0.69 (10). HPLC under the conditions (15): retention time of individual substance
is 3.55 minutes.
EXAMPLE 23
23.1. ASPARTYL HISTAMINE Nα -TERT.-BUTYLOXYCARBONYL-β-BENZYL ESTER
[0121] To a solution of 1.7 g (3.48 mM) Boc-Asp(OBzl)-OPfp, 5 ml DMF is added while stirring.
The reaction mixture is then stirred for a further 1,5 hours and then left for 20
hours at +4°C. The solvent is removed under vacuum. The oily residue is dissolved
in 2 ml chloroform, and triethylamine is added up to pH 8 and then the residue is
purified on a column 30 x 1,5 cm with silicagel 40/100 in a gradient of solvents chloroform-chloroform:methanol
(9:1). Fractions containing the target product are united and the solvent is evaporated.
A colorless substance is produced. Yield is 800 mg (55%), R
f 0.29(1).
23.2.Nα-TERT.-BUTYLOXYCARBONYL- ASPARTYLIESTAMINE
[0122] 85 mg Boc-Asp (OBzl)HA is dissolved in 2 ml methanol, then 80 mg Pd/C is added and
the reaction mixture is stirred for 1,5 hours, with hydrogen flow being periodically
passed through it. The catalyst is filtered off, and the solvent in the filtrate is
evaporated. 65 mg (95%) clear oil is produced. R
f 0.35 (3).
23:3. α-L-ASPARTYLHISTAMINE (XXXVIII)
[0123] A solution of 65 mg Boc-Asp-HA in 2 ml 4N HCl in dioxane is kept for 40 minutes.
The solvent is removed under vacuum. The residue is washed with dry ether, then the
solvent is removed under vacuum. Yield is 50 mg (83%) 2HCl˙Asp-HA. R
f 0.57 (10).
1H-NMR spectrum, (CDCl
3+CD
3OD), δ, ppm: 2.0 (d, 2H, β-CH
2-Asp), 2.9 (t, 2H, β-CH
2-HA), 3.5 (t, 2H, α-CH
2-HA), 4.2 (t, 1H, α-CH
2-Asp), 7.0 (s, 1H, 5-CH-Im), 8.15 (s, 1H, 2-CH-Im). Mass-spectrum:, m/z: [M+1H]
+ 227.2.
[0124] According to typical techniques, novel compounds of general formula (I) shown in
table 2, are also produced.
Table 2
| Structure and characteristics of compounds of general formula (I) |
| N° |
R1 |
n |
R2 |
m |
R3 |
Physicochemical characteristics |
| Q |

|
1 |
H |
1 |
-4-Im |
1H-NMR spectrum: 1.5 (d, 3H, CH3), 1.75 (m, 1H, β-H), 2.2 (m, 4H, α,γ-CH2), 2.8 (t, 2H, β-CH2-HA), 3.4 (T, 2H, α-CH2-HA), 7.3 (s, 1H, CH-5-Im), 8.6 (s, 1H, CH-2-Im). Mass-spectrum, m/z: [M+1H]+ 240.2. |
| |

|
2 |
CH3 OOC |
1 |
-3-Ind |
1H-NMR spectrum: 2.12 (m, 2H, β-CH2), 2.43 (t, 2H, γ-CH2), 3.12 (t, 2H, β-CH2 Trp), 3.7 (s, 3H, CH3O), 3.85 (t, 1H, α-CH), 3.92 (t, 1H, α-CH-Trp), 6.99 (t, 1H, 5-CH-Ind), 7.05 (s, 1H,
2-CH-Ind), 7.06 (t, 1H, 6-CH-Ind), 7.55 (d, 2H, 4,7-CH-Ind). Mass-spectrum, m/z: [M+1H]+ 348.3. |
| |
NH2-CH2- |
1 |
H |
1 |
-3-Ind |
1H-NMR spectrum: 2.35 (dt, 4H, α,β-CH2), 3.05 (t, 2H, β-CH2-TrpA), 3.63 (t, 2H, α-CH2-TrpA), 7.07 (m, 3H, 2-CH-2,5,6-Ind), 7.43 (d, 1H, CH-7-Ind), 7.43 (d, 1H, CH-7-Ind),
7.65 (d, 1H, CH-4-Ind). Mass-spectrum, m/z: [M+1H]+ 232.5. |
| XVIII |
HOOC- CH2- |
2 |
H |
1 |

where R4 =CH3CO- |
1H-NMR spectrum,: 1.98 (m, 2H, β-CH2 -GA), 2.25 (s, 3H, CH3CO), 2.45 (m, 4H, α,γ-CH2-GA), 3.13 (t, 2H, β-CH2), 3.60 (t, 2H, α-CH2), 6.91 (dd, 1H, CH-6-Ind), 7.15 (d, 2H, CH-2,4-Ind), 7.36 (d, 1H, CH-7-Ind). Mass-
spectrum, m/z: [M+1H]+ 333.3 |
| XXII |
HOOC-CH2- |
1 |
H |
1 |

|
HPLC under the conditions (6): one peak, retention time 8,9 minutes. Mass-spectrum,
m/z: [M+IH]+ 226.2 |
| XXIII |
HOOC-CH2- |
2 |
CH3OOC- |
1 |

|
Mass-spectnum:, M/z: [M]+ 299.2 Calculated %: S 10.69. Found %: 10.85. |
| XXIV |
HOOC-CH2- |
2 |
H |
1 |

|
1H-NMR spectrum: 0.62 (m, 2H, β-CH2-GA), 0.95 (m, 4H, α,γ- CH2-GA), 1.15 (d, 3H, CH3), 1.75 (m, 4H, CH2-3,4-pyrrolidinyl), 2.5 (s, 3H, CH3-), 2.74 (t, 2H, β-CH2), 3.05 (t, 2H,α-CH2), 3.21 (t, 2H, CH2-5-pyrrolidinyl), 3.34 (m, 1H, CH-2-pyaolidinyl) Mass-spectrum, m/z: [M]+ 242.3. |
| XXV |
HOOC-CH2- |
2 |
H |
1 |

|
1H-NMR spectrum: 0.5-65 (m, 2H, β-CH2-GA; CH2-3,4,5-piperazinyl), 0.9 (m, 4H, α,γ-CH2-GA), 1.25 (m, 4H, CH2-2,6-piperazinyl); 2.42 (t, 2H, α-CH2). Mass-spectrum, m/z: [M]+ 242.3. |
| XXVI |
HOOC-CH2- |
2 |
H |
1 |

|
1H-NMR spectrum: 0.6 (m, 2H,β-CH2-GA), 0.8-0.9 (m, 4H, CH2-3,4-pyrrolidinyl), 1.05 (m, 4H, α,γ- CH2-GA), 1.35 (m, 4H, CH,2,6-pyrrolidinyl), 2.05 (t, 2H, β-CH2),2.4(t,2H, α-CH2). Mass-spectrum, m/z: [M]+ 228.2. |
| XXVII |
HOOC-CH2- |
1 |
H |
2 |

|
HPLC under the conditions (7): one peak, retention, time 13,8 minutes. Mass-spectrum,
m/z: [M+1H]+ . 240.2 |
| XXVIII |
C2H5OCO-CH2- |
0 |
H |
1 |
-4-Im |
1H-NMR spectrum,: 1.77 (m, 2H, β-CH2),2.22(m, 4H, α,γ-CH2), 2.9 (t, 2H, β-CH2-HA), 3.49 (t, 2H, α-CH2 HA), 3:6 (dd, 2H, -CH2-O-CO), 3.75 (t, 3H, CH3-CH2-), 7.26 (s, 1H, CH-5-Im), 8.6 (s; 1H, CH-2-Im). Mass-spectrum, m/z: [M+1]+ 226.2. |
| XXXVII |
CH3-CONH-CH2- |
2 |
H |
1. |
-4-Im |
1H-NMR spectrum,: 1.91 (m, 2H, β-CH2), 2.18 (s, 3H, CH3CO), 2,36 (t, 2H, γ-CH2), 2.97 (t, 2H, β-CH2-HA), 3.32 (t, 2H, α-CH2-HA), 3.53 (t, 2H, α-CH2), 7.32 (s, 1H, CH-5-Im), 8.66 (s, 1H, CH-2-Im). Mass-spectrum, m/z: [M+1H]+ 239.1. |
| XXXVIII |

|
1 |
H |
1 |
-4-Im |
1H-NMR spectrum: 1.8 (d, 2H, β-CH2-Asp), 2.72 (t, 2H, β-CH2-RA), 3.31 (t, 2H, α-CH2-HA), Asp), -6.9 (s, 1H, CH-5-Im), 7.95 (s, 1H, CH-2-Im). Mass-spectrum, m/z: [M+1H]+ 227.2. |
| XXXIV |
-CH2-3-Ind |
0 |
H |
2 |
-(NH2)CH-COOH |
1H-NMR spectrum: 1.85 (m, 4H, β,γ-CH2), 2.1 (t, 2H, δ-CH2), 3.1 (s, 2H, -CH2-), 3.45 (t, 2H, α-CH), 6.95 (s, 1H, CH-2-Ind), 7.0-7.05 (m, 2H, CH-5,6-Ind), 7.4-7.45
(dd, 2H, CH-4,7-Ind). Mass-spectrum, m/z: [M+1H]+ 290.2. |
| XXXV |
-CH2-3-Ind |
1 |
H |
1 |
-CH2-NH2 |
1H-NMR spectrum: 1.7 (m, 2H, β-CH2), 2.1 (t, 2H, γ-CH2), 2,9 (t, 2H, β-CH2-indolyl-pmpion.), 3.05 (t, 2H, α-CH2), 3.5 (m, 2H, α-CH2-indolyl-propion.), 7.0 (s, 1H, CH-2-Ind), 7.05 (m, 1H, CH-5-Ind), 7.1 (m, 1H, CH-6-Ind),
7.32 (d, 1H, CH-7-Ind), 7.5 (d, 1H, CH-4-Ind). Mass-spectrum, m/z: [M+IH]+ 245.2. |
| XL6 |

|
0 |
H |
1 |
-4-Im |
1H-NMR spectrum: 2.4 (t, 2H, β-CH2HA), 3.3 (t, 2H, α-CH2HA), 7.1-7.15 (m, 4H, 2,4,5,6-CH), 7.3 (s, 1H, CH-5-Im), 8.65 (s, 1H, CH-2-Im). Mass-spectrum,
m/z: [M+1H]+ 217.1. |
| XLI |

|
0 |
H |
1 |
-3-Ind |
1H-NMR spectrum: 2.01 (m, 2H, 4-CH2), 2.3 (m, 2H, 3-CH2-), 2.42 (t, 2H, β-CH2TrpA), 3.4 (t, 2H, 5-CH2-), 3,4 (t, 2H, 5-CH2-), 3.46 (t, 2H, α-CH2-TrpA), 4.1 (m, 1H, 2-CH), 6.95 (m, 3H, 2,5,6-CH-Ind), 3.5 (m, 2H, α-CH2 -indolyl-propion.), 7.0 (s, 1H, CH-2-Ind), 7.05 (m, 1H, CH-5-Ind), 7.6 (dd, 2H, 4,7-CH-Ind).
Mass-spectrum, m/z: [M+1H]+ 257.2. |
| XLII |

|
0 |
H |
1 |
-4-Im |
1H-NMR spectrum: 2.1-2.25 (m, 6H, 3,4,5-CH2-), 2.4 (t, 2H, β-CH2-), 2.4 (t, 2H, β-CH2-HA), 3.45 (t, 2H, 6-CH2-), 3,48 (t, 2H, α-CH2-HA), 4.15 (t, 1H, 2-CH), 7.2 (s, 1H, CH-5-Im), 8.5 (s, 1H, CH-2-Im). Mass-spectrum,
m/z: [M+1H]+ 223.2.. |
| XLIII |

|
0 |
H |
1 |
-3-Ind |
1H-NMR spectrum: 2.1 (m, 2H, (β-H2); 2.5 (t, 2H, β-CH2 TrpA), 2.93 (t, 2H, γ-CH2), 3.45 (t, 2H, α-CH2-TrpA), 4.25 (t, 1H, α-CH), 3.46 (t, 2H, α-CH2-TrpA), 7.03 (m, 1H, CH-5-Ind), 7.09 (s, 1H, CH-2-Ind), 7.1 (m, 1H, CH-6-Ind), 7.6
(d, 1H, CH-7-Ind), 7.65 (d, 1H CH-4-Ind). Mass-spectrum, m/z: [M+IH]+ 271.2. |
[0125] Examples of biological trials with compounds of the present invention are presented,
below.
EXAMPLE 24
ANTIHYPOXIC ACTIVITY STUDY OF COMPOUNDS OF THE PRESENT INVENTION
[0127] Tests for determining the average lifetime of animals in a closed volume and the
model of acute hypobaric hypoxia at the minimum atmospheric rarefaction (170-185 mm
Hg) were used to study the antihypoxic activity of the compunds of general formula
(I).
A. Determining average life-span of animals in a closed volume
[0128] Mice were placed one by one into sealed glass jars and their lifetime was recorded.
[0129] The experiment was carried out on 90 mongrel male mice having an initial body mass
of 20 ± 0,5 g, housed in cages of 10 animals and given a standard vivarium ration.
The average lifetime of a mouse in a closed vessel having a volume of 250 ml was preliminarily
determined and it was 22 to 25 minutes. All the groups had 10 animals each.
Experimental protocol:
[0130]
- a)-preliminary hypoxia for 12 minutes;
- b)- first administration of the compound immediately following preliminary hypoxia;
- c)- second administration of the compound 24 hours after the first administration,
then daily administration for three days;
- d)- recording the lifetime of animals under hypoxic conditions in a sealed space,
2 hours after the last administration of the compound.
[0131] The test compounds were dissolved in distilled water and orally administered to animals
for 5 days.
Experimental groups:
[0132]
Group 1 -(control)- without preliminary hypoxia, with oral administration of distilled
water for 5 days;
Groups 2 and 3 - administration of compound XLIV using doses of 50 and 500 µg, respectively;
Group 4 - oral administration of sodium oxybutyrate at a dose 300 mg/kg 2 hours before
hypoxia;
Group 5 -(control)- with preliminary hypoxia for 12 minutes with subsequent administration
of distilled water for 5 days;
Groups 6 and 7 - administration of compound XLV using doses of 50 and 500 µg, respectively;
Groups 8 and 9 - administration of compound III using doses of 50 and 500 µg, respectively.
[0133] The data presented in Table 3 give evidence of the fact that the compounds of the
present invention possess a pronounced antihypoxic activity, significantly increasing
the lifetime of Experimental animals by 20-50 percent It should be noted that the
tested compounds rased the lifetime of mice in a way comparable with the effect of
the reference drug (sodium oxybutyrate) when administered at doses that are lower
by three-four orders.
Table 3
| Effect of test compounds on lifetime of mice under hypoxic conditions |
| Groups of animals |
Drug dose (mg/kg) |
Lifetime (seconds) |
| Group 1 - without preliminary hypoxia, |
- |
1440,3±86,2 |
| Group 2 - compound XLN |
0,05 |
2110,6±123,6**1 |
| Group 3 - compound XLN |
0,50 |
1742,8±68,1*1 |
| Group 4 - sodium oxybutyrate |
300 |
2103,9±100,5**1 |
| Group 5 - control with hypoxia |
- |
1437,2±87,3 |
| Group 6 - compound XLIV |
0,05 |
1415,5±47,2 |
| Group 7-compound XLIV |
0,50 |
1844,8±93,2*5 |
| Group 8 - compound III |
0,05 |
1670,6±25,3*5 |
| Group 9 - compound III |
0,50 |
1532,6±96,0 |
| *- significant difference relative to the respective control group (figures 1 and
5); * = p<0,05; * = p<0,01. |
B. Acute hypobaric hypoxia model (AHBH)
[0134] Stimulation of AHBH was done in a flow-through chamber at a temperature of 22°C.
Experiments were carried out on mongrel mice with an initial body mass of 20 g, with
a minimum rarefaction of 170-185 mm Hg, which corresponds to an altitude of 10500-11000
m. The lift rate was 35 m/second. Each group included 15 animals. Compounds were administered
orally and the lift to altitude was performed 2 hours after the last administration.
Groups of animals:
[0135]
Group 1 - intact control -administration of normal saline four times.
Groups 2 and 3 - administration of compound III at doses of 50 and 500 µg/kg ,respectively,
for 4 days.
Group 4 - single administration of sodium oxybutyrate at a dose 300 µg/kg.
[0136] Results are statistically processed.
[0137] The results presented in table 4 give evidence of the fact that administration of
the compound at a dose 500 µg/kg increases the lifetime of animals under hypoxic conditions.
Table 4
| Effect of the compounds on lifetime of mice under hypoxic conditions |
| Group of animals |
Dose in µg/kg |
Lifetime under hypoxic conditions (minutes) |
Effect in percent |
| Group 1 (control) |
- |
306,0 ± 9,8 |
100 ± 3,2 |
| Group 2 |
50 |
322,0 ± 10,9 |
105 ± 3,5 |
| Group 3 |
500 |
345,3 ± 15,9 |
113 ± 5,2* |
| Group 4 |
300,000 |
364,3 ± 13,5 |
119 ± 4,4* |
*= significant difference relative to the control group;
*=p<0,05. |
EXAMPLE 25
ANTIISCHEMIC ACTIVITY OF COMPOUNDS
[0138] The antiischemic activity of compounds was assessed by an integral test, i.e. the
effect on the necrosis zonearea following the reproduction of myocardial infarction
in mongrel rats weighing 250-300 g.
Groups of animals:
[0140]
Group 1 - intact control -administration of normal saline four times.
Groups 2 and 3 - oral administration of compound III at dose of 50 and 500 µg/kg ,respectively,
for 4 days.
Group 4 - single intraperitoneal administration of Nicorandil at a dose of 1 mg/kg
immediately after occlusion.
[0141] The data presented in Table 5 give evidence of the fact that the compounds possess
antiischemic activity.
Table 5
| The compound effect on the necrosis zone area 4 hours after coronary artery occlusion
in rats |
| Group of animals |
Dose,
µg/kg |
Ischemia zone, percent to the total myocardial mass |
Necrosis zone, percent to the total myocardial mass |
Necrosis zone percent to myocardial zone |
| Group 1 |
- |
25,5 ± 1,7 |
17,1 ± 1,2 |
67,6 ± 4,0 |
| Group 2 |
50 |
27,2 ± 2,8 |
15,4 ± 1,7 |
56,8 ± 2,7* |
| Group 3 |
500 |
31,1 ± 3,1 |
17,8 ± 1,0 |
54,3 ± 2,1* |
| Group 4 |
1000 |
25,0 ± 1,9 |
11,3 ± 1,6 |
44,3 ± 5,0* |
*= significant difference relative to the control group;
*=p<0,05. |
EXAMPLE 26
CHANGE IN FOOD ANAPHYLAXIS SEVERETY AS AFFECTED BY THE COMPOUNDS OF THE PRESENT INVENTION
[0142] Tests were carried out on mongrel guinea-pigs with an initial body mass of 250-300
hg, which were given a general vivarium ration. Sensibilization of animals was performed
according to the published method [
Shaternikov V.A., Marokko I.N., Pyatnitsky N.N.; Shirina L.I., Gorgoshidze L.Sh.,
Kasyanenko V.V., Sugonyaeva N.P., Zhminchenko V.M., Vinokurova N.M., Experimental
reproduction of food anaphylaxis, Voprosy pitaniya (Nutrition problems)(1982) No 2,
pp. 27-31], with once recrystallized chicken ovalbumin (OVA) manufactured by the Olajne Scientific-Productive
Amalgamation BIOCHEMREACTIV; at a dose 50 mg per an animal daily for 3 days. 14 days
after completion of sensibilization, active anaphylactic shock (AAS) was induced in
the animals with intravenous injection of an anaphylaxis-provoking homologous protein
at a dose of 5 mg in 0,5 ml normal saline. AAS severety was assessed by the lethality
level, the number of seizure signs and by the value of anaphylactic index [
Weigle W., Cochrane C., Dixon F. Anaphylactogenic properties of soluble antigen-antibody
complexes in the guinea pigs and rabbits. J. Immunology. (1969), Vol. 85, pp. 469-477].
[0143] Compounds III and XLV and Claritine (groups 2, 3 [30 guinea pigs] and 4 [24 animals],
respectively) were orally administered for 3 days before provoking anaphylaxis , at
a dose of 50 µg/kg for compounds III and XLV and of 1000 µg/kg for Claritine. Animals
of the control group at respective terms were administered normal saline (group 1-30
guinea pigs).
[0145] Table 6 shows a significant decrease in the severety of anaphylactic shock manifestations
in guinea pigs which were given compounds III and XLV as compared with both the control
group and the group of animals which were administered Claritine.

EXAMPLE 27
STUDY OF THE EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON BRONCHOSPASM SEVERETY
[0147] Male guinea pigs were sensitized with an intramuscular injection of a 0.5 ml suspension
comprising 20 micrograms ovalbumin (OVA, manufactured by the Sigma company [grade
III]) and 100 mg Al(OH)
3 per one animal. An anaphylaxis-provoking dose of 150-200 µg /kg OVA in 0.1 ml normal
saline was intravenously (v. jugularis) injected on day 26 after sensibilization.
Bronchospasm induction and the measurement of external respiration parameters were
carried out according to the method described in
Yu-Hong L., Barnes P., Rogers D., Inhibition of neurogenic plasma exudation and bronchoconstriction
by a K+ channel activator, BRL 38227, in guinea pig airways in vivo. Europ. J. Pharmacol.,
Vol. 239, pp.257-259]. The measurement of respiration parameters was performed using a transducer (Ugo
Basel, model 7020), connected with a cannula and a recorder (Millichrome), to record
breathing amplitude. Bronchospasm dynamics were observed for 30-60 minutes. The efficacy
of compounds was determined by the change in bronchospasm value.
[0148] A number of the compounds of the present invention were tested (III, VI, XLIV, XLVIII,
XLIX). The compounds were dissolved in normal saline and intragastrally infused to
animals at a dose 50 µg/kg 72, 48 and 18 hours prior to bronchospasm induction i.e.
they were infused three times, and compound III intratracheally at the same dose 15
minutes prior to bronchospasm induction. Inthal was used as a reference drug and was
administered to animals at a dose 5 µg/kg according to the same dosage regimen as
the test substances were administered. The control group of animals received an equivalent
amount of normal saline.
[0149] Compounds III and XLIV were studied in greater detail.
[0150] Groups of animals: group 1 - control; group 2 - animals given Inthal; group 3 - animals
given oral compound XLIV; group 4 - animals given oral compound III; group 5 - animals
given intratracheal compound III; group 6 - animals given compound XLIX, group 7 -(comparative
example)- animals given compound XXXI, group 8 - animals given compound XLVI; group
9 - animals given compound VI, group 10 - animals given compound XLVIII.
[0151] All the tested compounds lowered the bronchospasm value by 20-70% as compared with
the control values. Inthal decreased the bronchospasm value by almost 50%.
[0152] Table 7 summarizes the results, giving evidence of the fact that the compounds of
the present invention decrease the bronchospasm value by over 50% as compared with
the control values.
Table 7
| Change in bronchospasm value as affected by the test compounds |
| Group of animals |
Number of animals in group |
Bronchospasm (percent of the maximum value) |
| Group 1 - control |
21 |
87.5 10.7 |
| Group 2 - Inthal, 5 mg/kg |
14 |
40.7 3.4* |
| Group 3 - compound XLIV, 50 µg/kg per os |
12 |
15.6 3.2** |
| Group 4 - compound III, 50 µg/kg, per os |
12 |
12.0 4.0** |
| Group 5 - compound III, 50 µg/kg, intratracheally |
12 |
24.6 6.4* |
| Group 6 - compounds XLIX, 50 µg/kg, per os |
15 |
33.0 9.4* |
| Group 7 - compound XXXI, 50 µg/kg, per os |
12 |
39.3 7.6* |
| Group 8 - compound XLVI, 50 µg/kg,per os |
12 |
35.0 8.2* |
| Group 9 - compound VI, 50 µg/kg, per os |
12 |
35.0 10.2* |
| Group 10 - compound XLVIII, 50 µg/kg, per os |
12 |
22.0 3.4* |
*= significant difference with the control group,
*= p<0.05, **= p<0.01 |
[0153] Thus, the tested compounds of the present invention caused a similar decrease in
bronchospasm value as the reference drug Inthal. The effect was manifested for both
oral and intratracheal administration ration of the compounds. However, the effective
dose of the tested substances was two orders lower than that of Inthal.
EXAMPLE 28
STUDY OF CHANGE IN PASSIVE CUTANEOUS ANAPHYLAXIS REACTION AS EFFECTED BY THE COMPOUNDS
OF THE PRESENT INVENTION
[0154] Experiments were carried out on mongrel male mice with an initial body mass of 22-24
g. Each group included 10 animals. Sensibilization of animals was accomplished by
intradermally injecting 20-30 µl of the serum of mice obtained from preliminarily
immunized animals comprising reagent antibodies against chicken ovalbumin (OVA). The
test compounds III and XLIV were orally administered to animals for 3 days starting
with the dermal sensibilization day. Doses of 50, 150 and 500 µg/kg were used for
compound III, and a dose of 50 µg/kg was used for compound XLIV. Reference drugs Suprastine
at a dose 10 mg/kg and Ckaritine at a dose 2 mg/kg were administered in a similar
way. 48 hours after sensibilzation, an anaphylaxis-provoking OVA dose (1 mg and 0,2
ml Evans blue in 0.2 ml normal saline) was intravenously injected into the mice. Passive
cutaneous anaphylaxis reaction intensity (PCA) was determined in 30 minutes by the
size (area) of a blue spot on the internal skin surface at the site of administration
of the reagent anibodies. Spot size was measured in two mutually perpendicular directions
and the result was expressed in mm
2.
[0155] The results presented in Table 8 give evidence of the fact that the administration
of the test compound III at a dose 50 µg/kg to mice results in a significant decrease
in PCA reaction intensity by 42%, and at doses 150 and 500 µg/kg, by 34.3% and 30.0%
respectively. The administration of the compound XLIV results in decrease in PCA reaction
intensity by 50%. The administration of Suprastine to experimental animals did not
change PCA manifestations. When Claritine was used, a pronounced decrease in PCA reaction
was observed.
Table 8
| Effect of the test compounds on passive cutaneous anaphylaxis reaction |
| Group of animals |
Reaction intensity, mm2 |
Percent of the reaction inhibition |
| Control - 1 |
81.7 ± 14.5 |
- |
| Compound III - 150 µg/kg |
53.7 ± 10.1*1 |
34.3 |
| Compound III - 500 µg/kg |
57.2 ± 12.6*1 |
30.0 |
| Control - 2 |
88.9 ± 34.6 |
- |
| Compound III - 50 µg/kg |
51.6 ± 17.1*2 |
42 |
| Compound XLIV - 50 µg/kg |
44.6 ± 11.6 |
50 |
| Suprastine - 10 µg/kg |
82.1 ± 18.1 |
7.6 |
| Claritine - 2 µg/kg |
6.4 ± 2.3**2 |
92.8 |
| *1 and *2 = significant difference relative to the control groups 1 and 2, respectively; *
= p0.05; ** = p<0.01. |
[0156] Thus, compounds III and XLIV possess the ability to lower PCA manifestation to a
greater extent than Suprastine. PCA reaction intensity was inhibited to a greater
extent with administration of Claritine than with administration of compounds III
and XLIV, however, the effective dose of Claritine was an order higher than that of
compounds III and XLIV.
EXAMPLE 29
STUDY OF THE EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON DELAYED HYPERSENSITIVITY
A. Effect of compound III on the delayed type hypersensitivity reaction development
induced by sheep red blood cells
[0157] Studies were carried out on mongrel white male mice with an initial body mass of
22-24 g. Each group included 10 animals. Mice were sensitized by intravenous injection
of the suspension of 2 x 10
5 sheep red blood cells in 0.05 ml normal saline. On day 5, the suspension of 10
8 sheep red blood cells in 0.05 ml normal saline was injected into the hind paw pad.
As a control, the solvent, i.e. normal saline in equivalent amount, was injected.
Reaction intensity was assessed after 24 hours by the difference in the mass of the
paw of each animal.

[0158] The test compound III was orally administered for three days at doses 50 and 500
µg/kg according to the dosage regimen : days 3, 4 and 5. Administration of the anaphylaxis-provoking
dose was on day 5.
[0159] The data presented in Table 9 show that administration of compound III at doses of
50 and 500 µg/kg significantly lowers delayed hypersensitivity intensity.
Table 9
| Effect of the compound III on the manifestation of delayed hypersensitivity induced
by sheep red blood cells |
| Group of animals |
Difference in paw mass (g) |
Reaction index, percent |
Percent to the control |
| Control |
22.4 ± 3.7 |
13.7 ± 1.25 |
100 |
| 50 µg/kg |
16.7 ± 1.9* |
10.3 ± 1.1* |
75.5 |
| 500 µg/kg |
17.2 ± 1.3* |
10.8 ± 0.8* |
79.3 |
* = significant difference in relation to the control group.
* = p<0.05 |
B. Study of the local effect of the compounds of the present invention on delayed
hypersensitivity induced in mice by picryl chloride
[0161] Studies were conducted on mongrel male mice with an initial body mass of 30-35 g.
Each group included 10 animals. Mice were sensitized by the application of 0.1 ml
3% TCB solution in acetone on a shaved abdominal area. After 7 days an anaphylaxis-provoking
TCB dose (0.025 ml of 3% solution) was applied on both surfaces of the right ear.
After 30 minutes 0.05 ml of the test ointment was rubbed onto the same surfaces. 24
hours after edema induction the mice were sacrified and their ears were cut off and
weighed. The allergic reaction intensity was assessed by measuring the difference
in weight in grams of the right ear (the test one) in relation to the left ear (the
control ear).
[0162] Allergic reaction inhibition expressed in percent was calculated according to the
formula:

where R = the right ear weight, and L = the left ear weight..
Control = intact animals, experiment = animals which were administered the compounds.
[0163] The test compounds were applied on the ear in the form of 1% and 5% ointments, the
base of which was a 10% methylcellulose solution and propylene glycol at 1:1 ratio.
Groups of animals:
[0164]
Group 1 - control, ointment base without active substance was applied on the ear of
animals.
Group 2 - ointment base comprising 1% compound III was applied on the ear of animals.
Group 3 - ointment base comprising 1% compound XVII was applied on the ear of animals.
Group 4 - ointment base comprising 5% compound XLVIII was applied on the ear of animals.
[0165] The data presented in Table 10 give evidence of the fact that the test compounds
possess the ability to inhibit delayed hypersensitivity induced by TCB.
Table 10
| Effect of the test compounds on delayed hypersensitivity induced in mice by TCB |
| Group of animals |
Weight of ears (g) |
weight increment (g) |
Reaction inhibition (%) |
| Right |
left |
| Group 1 |
22.9 ± 1.72 |
15.0 ± 141 |
7.90 ± 0.56 |
- |
| Group 2 |
20.35 ± 1.21 |
15.4 ± 1.12 |
4.9 ± 0.5* |
38% |
| Group 3 |
21.6 ± 1.02 |
15.5 ± 1.02 |
6.1 ± 0.59* |
24% |
| Group 4 |
17.9 ± 0.94 |
14.2 ± 0.98 |
3.7 ± 0.81** |
54% |
* = significance of differences in relation to the control group
*=p<0.05; ** = p<0.01. |
EXAMPLE 30
STUDY OF THE EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON ACUTE INFLAMMATION
DEVELOPMENT
A. The model of edema induced by Freund's complete adjuvant.
[0167] The test compounds were intragastrally administered to animals through a probe four
times, at a dose 50 µg/kg in 0.5 ml of 1% starch solution, 72, 48, 24 and 1 hour before
FCA administration. The reference drug Naproxene was administered once, at a dose
of 50 µg/kg, 1 hour before edema induction. Each group included 10 animals.
Group of animals:
[0168]
Group 1 - control, animals were administered 0.5 ml of 1% starch solution.
Group 2 - animals were administered the compound XLVIII.
Group 3 - animals were administered the compound III.
Group 4 - animals were administered Naproxene.
[0169] The data presented in Table 11, give evidence of the fact that the tested compounds
possess the ability to inhibit the FCA induced inflammatory reaction. Antiinflammatory
effect intensity for the compound III is comparable to the effect of Naproxene, but
the total dose of Naproxene was 25 times higher than that of compound III.
Table 11
| Effect of the test compounds on the FCA-induced edema of paws in rats |
| Group of animals |
Volume of paws (conditional units) |
Volume increment |
Inflammation inhibition (%) |
| Right |
left |
| Group 1 |
2.22 ± 0.85 |
1.42 ± 0.45 |
0.80 ± 0.07 |
- |
| Group 2 |
1.95 ± 0.48 |
1.30 ± 0.62 |
0.65 ± 0.04* |
19% |
| Group 3 |
1.85 ± 0.62 |
1.25 ± 0.34 |
0.54 ± 0.04* |
32.5% |
| Group 4 |
1.75 ± 0.54 |
1.30 ± 0.25 |
0.45 ± 0.02** |
44% |
* = significance of differences in relation to the control group.
*= p<0.05; ** = p<0.01. |
B. Study of the effect of the compounds on the carrageenan edema model in rats
[0170] This experiment was carried out on white mongrel male rats weighing 280-300 g. Carrageenan-induced
edema was caused according to the method of Winter et al. [
Winter, De Rosa M., Giroud J.P., Willoughby D.A., Studies of the mediators of the
acute inflammatory reponse induced in rats in different sites by carrageenan , and
turpentine; J. Pharmacol. (1971), Vol. 104, pp. 15-29]. Paw volume was measured using a plethysmograph (Ugo Basile) 1, 3 and 4 hours after
carrageenan administration. The inhibition of inflammatory reaction, expressed in
percent, was calculated according to the formula:

where R = the right paw volume and L = the left paw volume.
Control = intact animals; experiment = animals which were administered the compounds.
[0171] Series I of experiment. The test compounds were intragastrally administered to animals
through a probe four times, at a dose of 50 µg/kg in 0.5 ml of 1% starch solution,
72, 48, 24 and 1 hour before FCA administration. The reference drug Naproxene was
administered one at a dose of 20 µg/kg 1 hour before edema induction. Each group included
10 animals.
Groups of animals:
[0172]
Group 1 - control, animals were administered 0.5 ml of 1% starch solution.
Group 2 - animals were administered the compound III.
Group 3 - animals were administered the compound II.
Group 4 - animals were administered Naproxene.
[0173] The data presented in Table 12 give evidence of the fact that the compounds, on oral
administration, possess the ability to inhibit carrageenan induced inflammatory reaction.
The antiinflammatory effect intensity of compound III is comparable to the effect
of Naproxene, when the total dose of Naproxene was 10 times higher than that of the
compound III.
Table 12
| Effect of the test compounds on the carrageenan-induced edema of paws in rats with
oral administration |
| Group of animals |
Volume of paws (conditional units) |
Volume increment |
Inflammation inhibition (%) |
| Right |
left |
| Group 1 |
2.12 ± 0.63 |
1.35 ± 0.23 |
0.77 ± 0.04 |
- |
| Group 2 |
1.72 ± 0.27 |
1.23 ± 0.41 |
0.49 ± 0.07** |
30%. |
| Group 3 |
1.92 ± 0.65 |
1.28 ± 0.28 |
0.64 ± 0.05*1 |
12% |
| Group 4 |
1.82 ± 0.54 |
1.34 ± 0.25 |
0.48 ± 0.02* |
37% |
* = significance of difference in relation to the control group.
**=p<0.01; *1=p<0.1. |
[0174] Series 2 of experiment. 2% carrageenan solution was injected sublaterally into the
paws of rats. After 1 minute 0.1 ml of a gel comprising the test compounds was applied
to the right paw. The gel base consisted of propylene glycol dissolved in a mixture
of water and ethanol. The concentration of the compounds in the gel was 1%. The volume
of paws was measured 4 hours after carrageenan administration.
Groups of animals:
[0175]
Group 1 - control -1, gel without compound was applied on paw.
Group 2 - the applied gel comprised the compound XL.
Group 3 - the applied gel comprised the compound III.
Group 4 - the applied gel comprised the compound XXXVI.
Group 5 - the applied gel comprised the compound XIII.
Group 6 - control -2, gel without compound was applied on paw.
Group 7 - gel comprised 1% Voltaren.
[0176] The data presented in Table 13, give evidence of the fact that the tested compounds
in cutaneous application possess the ability to inhibit the carrageenan-induced inflammatory
reaction. The antiinflammatory effect intensity of the compounds is comparable with
the effect of the reference drug Voltaren.
Table 13
| Effect of the test compounds on the carrageenan-induced edema of paws in rats, with
cutaneous application |
| Group of animals |
Volume of paws (conditional units) |
Volume increment |
Inflammation inhibition (%) |
| right |
left |
| Group 1 control-1 |
2.56 ± 0.83 |
1.84 ± 0.13 |
0.72 ± 0.08 |
- |
| Group 2 |
2.12 ± 0.36 |
1.87 ± 0.24 |
0.29 ± 0.08** |
63% |
| Group 3 |
2.13 ± 0.64 |
1.83 ± 0.21 |
0.30 ± 0.06*1 |
60% |
| Group 4 |
2.23 ± 0.42 |
1.86 ± 0.16 |
0.37 ± 0.07** |
50% |
| Group 5 |
2.29 ± 0.18 |
1.82 ± 0.34 |
0.47 ± 0.08** |
35% |
| Group 6 control-2 |
2.42 ± 0.25 |
1.56 ± 0.34 |
0.74 ± 0.06 |
- |
| Group 7 |
1.99 ± 0.24 |
1.63 ± 0.26 |
0.40 ± 0.03 ** |
48% |
* = significance pf differences in relation to the control group.
**= p<0.01. |
EXAMPLE 31
ASSESSMENT OF INFLAMMATORY EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON THE
NON-INFECTIOUS PULMONARY GRANULOMATOSIS MODEL
[0177] The antiinflammatory and immunomodulating effect of compound III upon intragastral
administration was studied using the non-infectious pulmonary granulomatosis model.
Technique of aerosol Sephadex A-25 administration
[0179] Sephadex A-25, at a dose of 5 mg per 1 kg of body mass, was administered to rats
under ether anesthesia using an original dosing device for inhalation administration
of dry powders manufactured at the Scientific-Research Institute for Medical Instrument-Making.
Wistar rats quickly recovered from anesthsia following Sephadex A-25 administration
and they did not show any peculiarities in their behaviour and respiration character.
Compound III was administered intragastrally using a gastric probe at a dose 50 mg
per 1 kg of body mass and immediately after that, single aerosol administration of
Sephadex A-25 was performed According to the technique already described. Then compound
III was administered intragastrally once daily for 6 days at a dose 50 mg/kg of body
mass, in the form of a water solution. Rats were examined at the 7th day after commencement
of administering compound III and Sephadex A-25.
[0180] Bronchoalveolar lavage was obtained under Hexenal anesthesia Cytosis, i.e. the absolute
number of cells in 1 ml, was determined in the bronchoalveolar lavage fluid. The endopulmonal
cytogram (in percent) was calculated in the smears stained according to Romanovsky-Gimza.
Following the bronchoalveolar lavage procedure, lungs with trachea were resected from
the thoracic cavity and macropreparation was placed into a 2% acetic acid solution.
After 18-24 hours, the trachea, main and lobar bronchi were dissected under a lense.
The volume density of lymphoid follicles was estimated under the lense using the point
count method. A histological examination of lungs stained with hematoxylin and eosine
was performed. The volume density of alveolitis and emphysema was determined using
the point count method.
[0181] The histological examination of the lungs of the control group rats (intact animals)
did not reveal any pathological changes. The histological examination of the lungs
of Wistar rats on day 7 after aerosol effect of Sephadex A-025 found a morpological
picture of a granulomatous inflammatory process mature macrophage granulomas, acute
bronchitis and alveolitis with neutrophilic component, focal emphysema. Granulomas
were disposed along the pulmonary connective tissue and most of them were found in
the connective tissue along blood vessels, pulmonary artery branches and pulmonary
veins, as well as in the wall of bronchi. A little portion of small macrophage granulomas
was found in the interstitium of interalveolar septa "angles", alveolar passages and
respiratory and terminal bronchioles. The cellular composition of granulomas was predominantly
represented by macrophages as well as by occasional neutrophils and lymphocytes. In
the morphometric examination of Wistar rats' lungs, the parameters of alveolitis and
emphysema volume density were 7.0 ± 3.0 and 15.1 ± 5.1%, respectively (Table 15).
Table 15
| Morphometric characteristics of Wistar rats' pulmonary tissue following the aerosol
effect of Sephadex A-25 and showing the effect of the administration of the compound
III |
| Order No. |
Group of Animals |
Volume density in percent |
| Alveolitis |
Emphysema |
| 1. |
Control (intact animals) |
- |
1.8 ± 1.0 |
| 2. |
Sephadex A-25 (day 7) |
7.0 ± 3.0 |
15.1 ± 5.1 |
| 3. |
Sephadex A-25 + compound III |
3.8 ± 1.0 |
11.2 ± 3.2 |
| Significance of differences P |
1 - 2 |
- |
<0.05 |
| 2 - 3 |
>0.05 |
>0.05 |
| 1 - 3 |
- |
<0.05 |
[0182] According to the data of bronchoalveolar lavage fluid cytological examination in
Wistar rats at day 7 following aerosol effect of Sephadex A-25, the cytosis index
rase as compared with the control (table 16). The increase in percentage content of
neutrophils and lymphocytes in the endopulmonary cytogram was observed, but the differences
were not statistically significant.
Table 16
| Bronchoalveolar lavage cytosis and cellular composition parameters in Wistar rats
following exposure to aerosol Sephadex A-25 and treatment with compound III |
| No |
Group of animals |
Cytosis
(absolute number of cells in 1 ml) |
Endopulmonary cytogram in percent |
| Macrophages |
Lymphocytes |
Neutrophils |
| 1. |
Control (intact animals) |
0.168 ± 0.050 |
95.5 ± 1.1 |
3.7 ± 1.1 |
0.8 ± 0.2 |
| 2. |
Sephadex A-25 (day 7) |
0.189 ±0.042 |
54.2 ±9.4 |
15.3 ±1.1 |
34.0 ±12.0 |
| 3. |
Sephadex A-25 + compound III |
0.169 ±0.054 |
75.2 ±4.5 |
7.6 ±1.5 |
16.8 ± 2.6 |
| Significance of differences P . |
1 - 2 |
>0.05 |
<0.05 |
<0.01 |
<0.05 |
| 1 - 3 |
>0.05 |
<0.05 |
<0.05 |
<0.05 |
| 2 - 3 |
>0.05 |
>0.05 |
<0.01 |
>0.05 |
[0183] In the group of rats treated with compound III, the histological examination of lungs
also revealed the picture of granulomatous inflammation. According to morphometric
examination data, the prevalence of alveolitis and emphysema decreased and was 38±1.0
and 11.2±3.2%, respectively, but the differences were statistically insignificant
(see Table 15). According to cytological examination data, cytosis index in the group
of rats treated with compound III normalized (see table 16). A significant decrease
in percent content of neutrophils and lymphocytes was found in endopulmonary cytogram,
however, the normalization of parameters was not observed.
[0184] The effect of compound III on the pulmonary immune system was assessed by its effect
on the lymphoid tissue associated with bronchi. The volume density morphometric parameters
of the lymphoid tissue associated with bronchi are represented in Table 17.
Table 17
| Morphometric parameters of the lymphoid tissue associated with bronchi in Wistar rats
following exposure to Sephadex A-25 aerosol and treatment with compound III |
| No |
Group of animals |
Volume density of lymphoid follicles in percent |
| 1 . |
Control (intact animals) |
15.0 ±3.9 |
| 2. |
Sephadex A-25 (day 7) |
44.8 ±3.7 |
| 3. |
Sephadex A-25 + compound III |
34.7 ±10.3 |
| Significance of differences P |
1 - 2 |
<0.05 |
| 1 - 3 |
>0.05 |
| 2 - 3 |
>0.05 |
[0185] The volume density index of lymphoid follicles in Wistar rats was normally low making
up 15.0 ± 3.9 %. A pronounced pulmonary lymphoid apparatus hyperplasia was noted by
day 7 following exposure to Sephadex A-25 aerosol, the volume density index of lymphoid
follicles being 44.8 ± 3.7 %. In the group of rats treated with the compound III,
a the volume density of lymphoid follicles decreased to 34.7 ± 10.3%.
[0186] Thus, compound III was found to have antiinflammatory activity on the pulmonary non-infectious
granulomatosis induced by Sephadex -A-25. According to the data of pathological, morphometric
and cytological examinations, compound III induces a decrease in inflammation exudative
component intensity and alveolitis prevalence, as well as the inhibition of lymphoid
tissue hyperplasia.
EXAMPLE 32
ANTIOXIDANT ACTIVITY STUDY OF ONE OF THE COMPOUNDS OF THE PRESENT INVENTION IN AN
IN VIVO EXPERIMENT
[0187] Antioxidant activity was studied in an in vivo experiment, using the model of acute
toxic hepatic lesion with carbon quadrichloride (CCl
4).
[0189] Blood and liver specimens were taken for analysis 18 hours after the last CCl
4 administration.
[0191] The amount of LP products - malonic dialdehyde (MDA) - was determined by the test
with thiobarbituric acid (TBA) [
Korobeinikova E.N., Modification of lipid peroxidation products in the reaction with
thiobarbituric acid., Laboratornoye delo (Laboratory Matter) (1989), No 7, pp. 8-10]. The concentration of the TBA-active product was calculated using regression equation.
The MDA content in the liver of experimental animals was assessed using the modified
method [
Stalnaya I.D., Garishvili T.G., The method of determining malonic dialdehyde using
thiobarbituric acid., In: Modern methods in biochemistry, Moscow, Meditsina publishers.
(1977), pp. 66-69], performing preliminary extraction of lipids according to Folch [
Cates M. Technology of Lipidology, Moscow, Mir publishers (1975), pp. 74-76].
[0192] The results presented in Table 18 give evidence of the fact that CCl
4 administration to rats resulted in the accumulation of PL products in blood serum
and liver, and that in animals of experimental groups which were administered the
test compound, a significant decrease in the hepatic content of primary LP products
and serum and hepatic MDA content was noted.

[0193] The superscript numbers 1 and 2 show the numbers of the group in relation to which
differences are significant.
[0194] The results showed that compound III of the present invention possesses a pronounced
antioxidant effect in the model of acute toxic hepatic lesion.
EXAMPLE 33
CHANGE IN HEPATIC P-450. CYTOCHROME SYSTEM AS EFFECTED BY THE COMPOUNDS OF THE PRESENT
INVENTION
A. Effect of compounds of the present invention on Hexenal sleep duration in animals
[0195] Change in Hexenal sleep (HS) duration is the in vivo measurable index of the hepatic
P-450 cytochrome system condition.
[0196] studies were carried out on male mice of the lines BALB/c*h75, C57B1/6, CBA, DBA/2
and first generation CBF1 and BDF1 hybrides, with an initial mass 18-20 g, each group
including 10 mice; and on mongrel male guinea pigs with an initial mass of 250-300
g, each group including 24 animals. All the test compounds (from II to LII) were administered
orally in drinking water, for three days at doses of 50 and 500 µg/kg. Hexenal hydrochloride
was administered at a dose 36 µg/kg of animals mass 24 hours after the last drug administration,
except for the BALB/c*h75 mice line, which were administered Hexenal at a dose of
60 µg/kg at the same time, and guinea pigs for which the Hexenal dose was 30 µg/kg.
HS duration was determined in minutes.
[0197] Table 19 summarizes data on the change in Hexenal sleep (HS) duration in mice of
different lines, CBF1 and BDF1 hybrides, as well as in guinea pigs as influenced by
the compounds of the present invention. It was shown that the compounds decrease HS
duration in experimental animals at doses of both 50 and 500 µg/kg.
Table 19
| Change in Hexenal sleep duration in animals as influenced by the test compounds |
| |
|
Hexenal sleep duration (minutes) |
| Compound |
Animals |
Control |
Doses of the compound |
| 50µg/kg |
500µg/kg |
| XLIV |
BALB/c*h75 |
29.16 ± 5.68 |
26.50 ± 3.49 |
16.72 ± 1.27*** |
| XLV |
CBA |
21.88 ± 1.34 |
17.98 ± 1.66* |
16.13 ± 1.86** |
| XLV |
BDF1 |
23.78 ± 0.78 |
- |
20.33 ± 0.59* |
| XLIV |
guinea pigs |
24.76 ± 3.23 |
13.48 ± 1.02* |
- |
| XXXIII |
CBF1 |
25.91 ± 1.57 |
- |
19.82 ± 2.12* |
| XLVIII |
CBF1 |
25.91 ± 1.57 |
16.27 ± 1.26** |
20.91 ± 1.48* |
| XLIX |
CBF1 |
25.91 ± 1.57 |
19.68 ± 2.04** |
- |
| III |
CBF1 |
25.91 ± 1.57 |
19.61 ± 2.69** |
22.02 ± 1.45* |
| II |
the same |
the same |
- |
21.72 ± 1.24* |
| IV |
the same |
the same |
20.39 ± 1.59* |
- |
| XI |
the same |
the same |
- |
17.71 ± 0.66*** |
| VII |
the same |
the same |
17.62 ± 0.96* |
16.99 ± 1.33* |
| IX |
the same |
the same. |
16.71 ± 0.94** |
20.76 ± 1.32 |
| XLVI |
the same |
the same |
16.91 ± 1.28** |
13.21 ± 0.70*** |
| XXXI (Comparative Example) |
the same |
the same |
12.59 ± 0.88*** |
12.61 ± 1.45*** |
| X |
the same |
the same |
13.37 ± 1.78*** |
12.01 ± 1.23*** |
| XII |
the same |
the same |
19.74 ± 1.94* |
17.12 ± 1.90** |
| VI |
the same |
the same |
16.86 ± 1.38*** |
14.39 ± 1.73*** |
| LII |
the same |
the same |
21.14 ± 1.39 |
- |
* =Significance of differences in relation to the control group.
* = p<0.05; ** = p<0.01; *** = p<0.001 |
[0198] In examining changes in HS duration as influenced by the rest of the compounds of
the present invention in CBF1 mice, it was shown that the compounds decrease HS duration
by from 13% to 54% as compared with the control.
[0199] Thus, all the tested compounds decrease Hexenal sleep duration, which gives evidence
that they induce the hepatic P-450 cytochrome system.
B. Change in terminal oxidase and cytochrome B5 content as influenced by compounds of the present invention.
[0200] The change in hepatic monooxygenase system was studied using mongrel male guinea
pigs with an initial mass of 250-300 g each group included 12 animals. The test compound
III and Phenobarbital (PB) were administered three times 72, 48 and 24 hours before
monooxygenase system examination. The content of P-450 and B
6 cytochromes was measured, according to the published method [
Omura T., Scato R., The monooxide binding pigment of liver microsomes., 11. Solubilization,
purification and properties. J. Chem. (1964), Vol. 239, pp. 2379-2385], in the microsomal liver fraction, and isolated using the differential centrifugation
method [
Ahokas J., Pelkonen O., Karkin N. Characterisation of BP-hydroxylase of Trout-liver.
Cancer Res. (1977), Vol. 37, pp. 3737-3743]. The priority method [Izotov M.V., Scherbakov V.M., Devichensky V.M. et al., The
method of determining the content of P-450 cytochrome isoenzymes in liver microsomes.
The inventor's certificate No
1,488,738. B.I. (1989), No 3.-6.06.09, ICI, 01. - No 33/15, No 33/48]. Microsomal protein content was determined
using the modified Lowry method [
Hartree E. Determination of protein: a modification of the Lowry method, that gives
a linear photometric responses., Ann. Biochem. (1972), Vol. 48, pp. 422-427].
[0201] The results presented in table 20, give evidence of the fact that in guinea pigs
pretreated with the test compound and PB, the total hepatic content of P-450 cytochromes
and B
5 rises significantly. At the same time, animals of groups 2 and 3 showed a significant
increase in P-450B cytochromes and animals administered the test compound of the present
invention also showed a significant increase in the ratio of P-450B to P450L cytochromes
and in the ratio of B
5 to P-450 cytochromes.
[0202] The test compound III was found to change the hepatic P-450 cytochrome system in
a way similar to PB, however, it has its own peculiarities, such as elevating the
ratio of P-450B to P450L cytochromes and the ratio of B
5 to P-450 cytochromes.

EXAMPLE 34
CHANGE IN HORMONAL STATE OF ANIMALS AS EFFECTED BY THE COMPOUNDS OF THE PRESENT INVENTION
[0203] Studies were carried out on mongrel male guinea pigs with an initial body mass of
250-300 g. Each group included 12 animals. Sensibilization of animals was done as
described in example 27. Blood (for hormonal level determination) was sampled in animals-before
commencing the experiment and 18 hours after the last drug administration for 10 to
11 hours. The substance was orally administered three times to the sensitized and
intact animals, at a dose of 50 µg/kg, 72, 48 and 18 hours before the second blood
sampling. A hormonal state analysis was carried out by comparing individual changes
in each animal in a group. Mean parametric values expressed in nM/l are presented
in Table 21. The blood serum levels of the hormones progesterone, 17-oxyprogesterone,
11-desoxycortisol and cortisol were determined by radioimmunoassay using Beloris company
kits. The hormone concentration in samples was determined from the relation graph
between the activity of a precipitated bound labelled hormone and the hormone concentration
in calibration samples.
[0204] The experimental results are presented in Table 21. The administration of the compound
XLIV to intact animals resulted in a significant rise in the levels of free cortisol
(F) and of its precursors oxyprogesterone (17-OH-P) and desoxycortisol, as well as
a trend to increase the progesterone (P) level. In sensitized guinea pigs a significant
decrease in blood serum F and 17-OH-P levels and a trend to decrease in P level were
found. In sensitized animals which were administered the test compound, normalization
of blood serum F and desoxycortisol levels and a significant increase in P and 17-OH-P
levels were noted.
[0205] On administering compound III to both intact and sensitized experimental animals,
the same hormonal state changes were observed.

EXAMPLE 35
EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON METABOLISM OF [C14]-ARACHIDONIC ACID IN PULMONARY TISSUE HOMOGENATE
[0206] Studies were carried out on CBA male mice fed a standard vivarium ration. The animals
were administered the compound at a dose of 50 µg/kg, and phenobarbital at a dose
of 80 µg/kg, for three days. Then the animals were sacrified, their lungs were taken
out, frozen in liquid nitrogen, homogenized in a glass homogenizer manufactured by
the Wheaton company (U.S.A.) at +4°C in 10 volumes of 0.05 M Tris-HCl buffer. Aliquots
(0.5 ml) of supernatant were incubated in 0.5 µC [C
14]-arachidonic acid ([C
14]-AA, Amersham, Great Britain; specific activity 50-60 µCi/mM) at +37°C for 30 minutes.
The non-metabolized [C
14]-AA and its metabolism products were extracted in 20 volumes of a chloroform and
methanol (1:1) mixture at an extraction efficacy not less than 90%, assessed using
[C
14]-PGF
2α. The separation and identification of [C
14]-AA and its metabolites was performed by thin-layer chromatography (the Merck company
Kieselgel 60 plates, Germany) using an organic phase of a system of solvents (ethyl
acetate:isooctane:acetic acid:water - 110:50:20:100) and labelled standards. Densitometry
of the autoradiochromatograms obtained on the X-ray films X-Omat AR (Kodak, U.S.A.)
and HS 11 (ORWO, Germany) were performed on the KS 3 densiscan (Kipp and Zonnen, Holland).
Quantative analysis of individual eucosanoids was carried out using radiometry of
the fractions obtained with high performance liquid chromatography (the Gilson company
HPLC-system, France; the Du Pont company ZORBAX C8 column, U.S.A.) and with elution
of spots on TLC-plates.
[0207] The experimental results are represented in Table 22. The test compound was found
to stimulate the production of cyclooxygenase AA metabolites, as specified, namely
it increased prostaglandin E
2 (PGE
2) synthesis, and 6-keto-PGF
1α , PGF
2α, and lipoxygenase AA metabolism way, i.e. it increases the production of 5-HETE and
HHT. At the same time, a decrease in AA metabolism is observed in the P-450 cytochrome
system - 12-HETE and 15-HETE. It should be noted that the change in the profile of
AA metabolites in animals pretreated with one of the compounds of the present invention
was similar to that found in animals receiving Phenobarbital - a known cytochrome
P-450 system inducer.
Table 22
| Effect of the compound III on arachidonic acid metabolism |
| Groups |
Control |
Phenobarbital |
Control |
Compound |
| |
1 |
2 |
3 |
4 |
| Fractions |
percent of AA conversion |
| Phospholipids |
8.17 ± 0.33 |
8.18 ± 0.21 |
7.65 ± 1.65 |
7.41 ± 0.25 |
| 6-keto-PGF1α |
4.83 ± 0.47 |
4.12 ± 0.12 |
6.80 ± 0.56 |
7.95 ± 0.28 |
| PGF2α |
6.27 ± 0.18 |
7.91 ± 0.08 |
6.40 ± 0.50 |
8.05 ± 0.15 |
| TXB2 |
4.10 ± 0.20 |
6.21 ± 0.18 |
5.10 ± 0.30 |
5.76 ± 0.24 |
| PGE2 |
2.47 ± 0.20 |
3.82 ± 0.14 |
2.40 ± 0.11 |
3.07 ± 0.11 |
| 5-HETE+HHT |
10.07 ± 0.18 |
10.5 ± 0.26 |
10.80 ± 0.31 |
13.64 ± 0.26 |
| 12-, 15-HETE |
34.80 ± 0.35 |
27.1 ± 0.11 |
38.55 ± 0.78 |
23.82 ± 0.82 |
| Unmetabolized AA |
19.97 ± 0.26 |
14.5 ± 0.28 |
2.85 ± 0.15 |
15.32 ± 1.56 |
EXAMPLE 36
CHANGE IN ANTIGEN-DEPENDENT HISTAMINE SECRETION BY PERITONEAL MAST CELLS OF SENSITIZED
RATS AS EFFECTED BY THE COMPOUNDS OF THE PRESENT INVENTION
[0208] Sensibilization of Wistar male rats with an initial body mass of 200-250 g was carried
out according to the published method of Guschin et al [Guschin et al
Guschin LS., Voitenko V.G., Sviridov B.D. et al., A polyfunctional molecule produced
by the conjugation of synthetic polyionimmunostimulant with specific antigen and an
inhibitor of mast cell activation. Effects on histamine release. Agents and Actions
(1989), Vol. 27, pp. 75-78]. After 14 days of sensibilization according to the standard method of Fredholm et
al [
Fredholm B.B., Gyschin I.S., Elwin K. et al., Cyclic AMP-independent inhibition by
papaverine of histamine release induced by compound 48/80, - Biochem. Pharmacol. (1976),
Vol. 25, pp. 1583-1588], a cellular suspension was isolated from the peritoneal cavity, and the spontaneous
and chicken ovalbumin (OVA)-stimulated histamine secretions by mast cells (MC) was
determined. The histamine level in mast cells of the control and experimental animals
was also determined 2 ml of a cellular suspension containing 0.1-0.2 x 10
6 MC/ml was incubated in the presence of 200 µg/kg of OVA. Histamine secretion was
expressed as a percentage of its total level. The amount of histamine in samples was
determined using a spectrofluorimetric method [
Short P.A., Burkhalter A., Cohn V.N., A method for fluorimetric assay of histamine
in tissues, J. Pharmacol. Exper. Ther. (1959), Vol. 127, pp. 182-186].
[0209] The test compound was administered to animals intraperitoneally, according the following
dosage regimen: for 3 days prior to examining MC, a test compound at a dose of 50
µg/kg (group 2) or Suprastine at a dose 1000 µg/kg (group 3) was administered. Animals
of the control group were intraperitoneally injected normal saline (group 1). Each
group included 10 animals.
[0210] The experimental results are presented in Table 23. The administration of compound
XLV was shown to significantly lower antigen-dependent histamine secretion by MC.
At the same time, a significant rise in spontaneous histamine secretion by MC was
noted. These changes occur against the background of a decrease in the histamine level
in the MC of sensitized animals administered one of the test compounds.
Table 23
| Change in histamine secretion by mast cells of sensitized rats as effected by compound
XLV |
| Parameters |
Treatment |
| |
Control 1 |
Compound 2 |
Compound 3 |
| Spontaneous secretion, percent |
5.24 |
9.63*1,3 |
5.62 |
| Stimulated secretion, percent |
7.16 |
2.32*1,3 |
7.02 |
Histamine level,
µg/106 MC |
25.62 |
16.90*1 |
16.24*1 |
| * = p < 0.05 nm (significance of differences). Statistical processing using χ2 test. |
EXAMPLE 37
EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON THE PRODUCTION OF ACTIVE OXYGEN
FORMS IN MODEL SYSTEMS
[0211] The effect of the compounds of the present invention on changes in chemiluminescence
(CL) as determined by the hydroxyl radical ( OH) and the superoxide anion-radical
(O
2-) was studied using in model chemical and enzymatic systems.
[0213] The incubation medium comprised 5 mM KH
2PO
4 and 0.2 IU/ml xantine oxidase. Xantine at concentration 1 mM was introduced into
sample through a dispencer. Luceginine (0.2 mM) was used in the system as a luminiscence
sensitizer. The test compounds were introduced in a way similar to how they were introduced
in the radical study.
[0214] Preliminary studies showed that the compounds of the present invention have no effect
on xantine oxidase activity.
[0215] The CL of the systems described above was measured at 25°C under pulse stirring (at
the moment of reagents' introduction through the dispencer). CL signal indication
was performed by its integration every 10 seconds for 5 minutes. CL flash recording
duration after mixing the ingredients depended on a particular process kinetics. For
each system, CL light sum (mV) was determined in the control samples without preparations
(I-) and in samples comprising respective concentrations of the preparations (I+).
To estimate the degree of CL inhibition (activation) the I+/I- ratio (in relative
units) was found in the studied systems.
[0216] AOF formation and the effect of the test compounds on this process were recorded
on the Luminometer-1251 instrument (LKB, Sweden).
A. Effect of the compounds of the present invention on the formation of hydroxyl radicals
in the Fenton reagent.
[0217] When H
2O
2 was introduced into phosphate buffer comprising iron sulfate, a CL flash occured,
which was caused by the formation of (predominantly) hydroxyl radicals in the reaction
mixture. The flash had a short-term character-its maximum intensity being achieved
in the 10th second and during the following 10-20 seconds luminiscence became dim
and CL parameters decreased, down to background values.
[0218] Table 24 summarizes the data showing the effect of the compounds on hydroxyl radical
generation in the Fenton reagent. The results show that the test compounds inhibit
hydroxyl radical formation in the studied system.
Table 24
| Effect of the compounds of the present invention on hydroxyl radical formation |
| Compound No |

|
| |
1 mM |
0.1 mM |
0.01 mM |
1 µM |
| control |
7839 ± 171 |
| XLIV |
2197 ± 311 |
4625 ± 393 |
6444 ± 267 |
7747 ± 259 |
| |
0.28 (*) |
0.59 |
0.83 |
1.0 |
| XLV |
2195 ± 18 |
5800 ± 247 |
7443 ± 267 |
7666 ± 101 |
| |
0.16 |
0.74 |
0.95 |
1.0 |
| control |
1120 ± 163 |
| III |
164 ± 14 |
719 ± 71 |
972 ± 79 |
1100 ±84 |
| |
0.15 |
0.64 |
0.87 |
0.98 |
| XI |
557 ± 52 |
- |
1124 ± 113 |
1116 ± 90 |
| |
0.50 |
|
|
|
| VII |
165 ± 7 |
11.58 ± 102 |
- |
- |
| |
0.15 |
|
|
|
| IX |
225 ± 9 |
664 ± 47 |
1069 ± 72 |
- |
| |
0.20 |
0.59 |
0.95 |
|
| II |
175 ± 21 |
693 ± 42 |
772 ± 44 |
961 ± 42 |
| |
0.16 |
0.62 |
0.69 |
0.86 |
| control |
4974 ±283 |
| XII |
189 ± 13 |
575 ± 69 |
2829 ± 184 |
4438± 295 |
| |
0.04 |
0.12 |
0.58 |
0.89 |
| VI |
257 ± 74 |
3110 ± 210 |
5014 ± 186 |
- |
| |
0.05 |
0.63 |
|
|
| XXI |
228 ± 72 |
3265 ± 184 |
4036 ± 186 |
- |
| |
0.05 |
0.66 |
0.81 |
|
| XIX |
626 ± 56 |
3377 ± 222 |
3846 ± 184 |
49089 ± 269 |
| |
0.13 |
0.68 |
0.77 |
|
| XX |
536 ± 124 |
4018 ± 201 |
4205 ± 234 |
- |
| |
0.11 |
0.81 |
0.85 |
|
| control |
1332 ± 172 |
| XIIa |
615 ± 81 0.46 |
1246 ± 79 0.94 |
- |
- |
| (*) - relative effect: I+/I-, where I+ = CL intensity 9mV) in the presence of substance
and I-= CVL intensity in the same sample without the test substance. |
B. Effect of the compounds of the present invention on superoxide anion-radical formation
in the xantine-xantine oxidase system
[0219] The introduction of xantine into the medium containing xantine oxidase and lucegenine
resulted in the appearance of a CL flash, which flash was at a maximum for 3-5 minutes
and then a very slow reduction in chemiluminescence intensity began. The addition
of the test compounds into the xantine-xantine oxidase mixture did not principally
change the CL response curve shape and only the maximum CL intensity values varied.
Because of the "distension" of the kinetic curve, the chemiluminescence light sum
was recorded during the first 3-5 minutes. This reflected the total amount of light
quantums produced in the system till the maximum CL intensity values was achieved.
As seen from the presented data (Table 25) the test compounds possess the ability
to significantly inhibit the formation of the superoxide anion-radical.
Table 25
| Effect of the test compounds on formation of superoxide anion-radical |
| Compound No |

|
| |
1mM |
0.1 mM |
0.01 nM |
1 µM |
| control |
5616 ± 173 |
| III |
4027 ± 683 |
5670 ± 379 |
- |
- |
| |
0.72 |
|
|
|
| XI |
2263 ± 278 |
4621 ± 224 |
- |
- |
| |
0.40 |
0.82 |
|
|
| VII |
1114 ± 51 |
4050 ± 291 |
5082 ± 278 |
- |
| |
0.20 |
0.72 |
0.91 |
|
| control |
5391 ± 195 |
| II |
3143 ± 156 |
4753 ± 89 |
5229 ± 140 |
- |
| |
0.58 |
0.88 |
0.97 |
|
| control |
7290 ±128 |
| XII |
1926 ± 33 |
4730 ± 139 |
6856 ± 209 |
- |
| |
0.26 |
0.65 |
0.94 |
|
| VI |
902 ± 15 |
5518 ± 131 |
7295 ± 106 |
- |
| |
0.12 |
0.76 |
|
|
| XXI |
4232 ± 146 |
6460 ± 166 |
- |
- |
| |
0.58 |
0.89 |
|
|
| control |
6776: ± 150 |
| XIIa |
1955 ± 155 |
2188 ± 172 |
5471 ± 421 |
6168 ± 202 |
| |
0.29 |
0.32 |
0.81 |
0.91 |
| (*) - relative effect: I+/I-, where I+ = CL intensity 9mV in the presence of substance
and I- = CVL intensity in the same sample without the test substance. |
[0220] The results presented in examples 24-37 show that the compounds of the present invention
possess a pronounced antihypoxic, antiallergic and antiinflammatory activity.
EXAMPLE 38
HEPATOPROTECTIVE ACTIVITY STUDY OF THE COMPOUNDS OF THE PRESENT INVENTION
[0221] Hepatoprotective properties of the compounds were studied using a model of subchronic
liver lesion (hepatitis) with carbon tetrachloride.
[0222] 70 mongrel female rats with an initial body mass of 190-200 g and fed a standard
vivarium ration were used in experiment. Animals were divided into 7 groups (10 rats
each):
Group 1 - control one; during the first four days of the experiment the animals were
subcutaneously injected 0.2 ml vaseline oil;
Group 2 - during the first four days the animals were subcutaneously injected 50%
CCl4 solution in vaseline oil at a rate of 0.1 ml per 100 g body mass;
Group 3 - Legalon in a starch gel was administered orally for 8 days, at a dose of
30 mg/kg against the background of CCl4 administration;
Groups 4 and 5 - compound III, at doses of 50 and 500 µg/kg, resepectively, was administered
in a way similar to group 3;
Groups 6 and 7 - compound XLIV, at doses 50 and 500 µg/kg, resepectively, was administered
in a way similar to group 3.
[0223] The test compounds and Legalon were administered to animals 1 hour prior to CCl
4 administration. 24 hours after the last administration of the drugs, the animals
were decapitated.
[0224] The hepatoprotective activity of the test compounds was estimated based on the folowing
parameters:
- 1) in blood serum:
- activity of alanine aminotransferase (ALT) and aspartate aminotransferase (AST);
- total cholesterol (total CS);
- high density lipoprotein cholesterol (HDL-CS);
- low density lipoprotein cholesterol and very low density lipoprotein cholesterol (LDL-CS
and VLDL-CS, respectively);
- triglycerides (TG);
- malonic dialdehyde (MDA);
- 2) in the liver:
- lipid composition: phospholipids (PL), free cholesterol (FCS), - triglycerides (TG);
- MDA.
[0226] The blood serum total-CS level was determined according to the Ilk method [
Biochemical examination in the clinic. Ed. by Pokrovsky A.A. Moscow, Meditsina publishers
(1969), pp. 300-302]. The HDL-CS level was measured in supernatant following heparine-manganese precipitation
[
Titov V.N., Brener E.D., Khaltaiev N.G., Zadoya A.A., Tvorogova M.G., A method and
diagnostic significance of cholesterol level study in α-lipoproteins, Laboratornoye
delo (Laboratory Matter) (1979), No 1, pp. 36-41] using the Ilk method [
Biochemical examination in the clinic. Ed. by Pokrovsky A.A. Moscow, Meditsina publishers
(1969), pp. 300-302]. LDL-CS and VLDL-CS levels were calculated according to the formula [
Friedwald W.T., Levy R.I.,Fredrickson D.S., Estimation of the concentration of low-density
lipoprotein cholesterol in plasma, without use of preparative ultracentrifuge, Clin.
Chem. (1972), Vol. 18, pp. 499-502]:

where TG/5 corresponds to blood serum VLDL-CS level.
[0229] Total hepatic lipids were extracted using the modified Folch method [
Cates M. Technology of Lipidology, Moscow, Mir publishers (1975), pp. 74-76]. The quantative content of lipid fractions was assessed by a thin layer chromatography
method (TLC) using the system of solvents hexane:diethyl ether:acetic acid in the
ratio 80:20:2. Zones of individual lipid fractions were determined using a 10% alcohol
solution of phosphoromolybdenic acid, and following elution they were spectrophotometrically
analysed at 600 nm.
[0231] The experimental results (Table 26) give evidence of the fact that in animals treated
with CCl
4 a significant hyperenzymemia was noted. Administration of the compounds of the present
invention was accompanied by normalization of blood serum ALT and AST activity, the
maximum hepatoprotective effect being pronounced in administering the second substance.
Table 26
| Effect of the compounds of the present invention on the change in blood serum transaminase
activity in animals with experimental hepatitis |
| Groups of animals |
Daily dose, mg/kg |
ALT, nM/dl |
AST, nM/dl |
| Control, intact animals |
- |
674 ± 35 |
554 ± 27 |
| CCl4 - 4 days |
- |
789 ± 30* |
620 ±11* |
| Legalon + CCl4 |
30.0 |
622 ± 36** |
531 ± 22** |
| Compound III+CCl4 |
0.50 |
609 ± 42** |
522 ± 33** |
| Compound III + CCl4 |
0.05 |
624 ± 31** |
478 ± 26*** |
| Compound XLIV + CCl4 |
0.50 |
551 ± 28** |
475 ± 19*** |
| Compound XLIV + CCl4 |
0.05 |
599 ± 18** |
470 ± 17** |
*- significance of differences in relation to the control group data,
*=p<0.05
**, *** = significance of differences the data of the group of animals with experimental
hepatitis (CCl4): ** = p<0.01; *** = p<0.001. |
[0232] The data obtained from analysis of the blood serum lipid composition in experimental
animals showed (Table 27) that toxic liver lesion is accompanied by hypertriglyceridemia.
Some peculiarities of cholesterol distribution among lipoprotein fractions under the
effect of CCl
4 were noted, namely (along with a rise in the total cholesterol and VLDL-CS levels)
the HDL-CS level rase and the LDL-CS level dropped. Against the background of administering
Legalon and the test compounds, trends of a lowering of the total cholesterol level,
and normalization of LDL-CS, VLDL-CS and HDL-CS levels were observed.
Table 27
| Effect of the compounds of the present invention on the change in blood serum levels
of cholesterol and triglycerides in animals with experimental hepatitis |
| Group of animals |
Cholesterol level, mg/100 ml |
TG level, mg/100 ml |
| total-CS |
HDL-CS |
LDL-CS |
VLDL-CS |
| Control, intact animals |
77.6 ± 2.9 |
47.3 ± 2.1 |
18.4 ± 0.7 |
11.7 ± 0:4 |
59.5 ± 2.5 |
| CCl4 - 4 days |
93.5 ± 6.0* |
60.8 ± 4.6* |
12.1 ± 1.1 |
20.4 ± 1.6* |
102.9 ± 8.1 * |
| Legalon + CCl4 |
90.9 ± 3.4 |
54.8 ± 2.5 |
20.1 ± 1.1** |
15.7 ± 1.1** |
78.0 ± 6.2** |
| |
|
|
p<0.01 |
p<0.05 |
p<0.05 |
| Compound III, 0.5 µg/kg+ CCl4 |
87.0 ± 2.6 |
59.3 ± 2.6 |
12.0 ± 0.6 |
15.8 ± 1.0** |
78.6 ± 5.4** |
| |
|
|
|
p<0.05 |
p<0.05 |
| Compound III, 0.05 µg/kg + CCl4 |
89.5 ± 3.8 |
52.3 ± 2.9 |
19.6 ± 1.4** |
17.7 ± 2.0 |
88.0 ± 10.2 |
| |
|
|
p<0.01 |
|
|
| Compound XLIV, 0.5 µg/kg +CCl4 |
87.2 ± 6.5 |
57.5 ± 5.1 |
17.1± 1.0** |
12.4 ± 0.7** |
62.4 ± 3.9** |
| |
|
|
p<0.01 |
p<0.001 |
p<0.001 |
| Compound XLIV, 0.05 µg/kg+CCl4 |
85.3 ±3.9 |
49.6 ± 2.5 |
21.9 ± 1.1** |
13.9 ± 1.1** |
68.3 ± 5.7 p<0.001 |
| |
|
|
p<0.001 |
p<0.01 |
|
* = significance of differences compared with the control group data,
** = significance of differences compared with the data of the group of animals with
experimental hepatitis. |
[0233] The results presented in table 28 show that CCl
4 administration resulted in a lowering of the cholesterol level. The test compounds
normalized the FCS level and lowered the TG level. At the same time, a rise in phospholipid
fraction was observed when the test substances were administered.
Table 28
| Effect of the compounds of the present invention on the change in hepatic lipid composition
in rats with experimental hepatitis |
| Group of animals |
Lipid composition (in percent of total lipids) |
| Phospholipids |
FCS |
Triglycerides |
| CCl4 - 4 days |
21.3 ± 0.9 |
23.6 ± 1.2 |
23.9 ± 1.2 |
| Legalon + CCl4 |
19.7 ± 1.1 |
15.0 ± 0.4** p<0.01 |
44.1 ± 1.9 |
| Compound III, 0.5 µg/kg+CCl4 |
23.8 ± 1.0** p<0.05 |
18.9 ±0.7 |
35.3 ±0.7 |
| Compound III, 0.05 µg/kg+CCl4 |
24.4 ± 0.7** p<0.05 |
20.3 ± 0.8** p<0.05 |
35.5 ± 1.1 |
| Compound XLIV, 0.5 µg/kg+CCl4 |
26.1 ± 0.6** p<0.001 |
20.6 ± 0.8** p<0.05 |
33.9 ± 1.0** p<0.05' |
| Compound XLIV, 0.05 µg/kg + CCl4 |
22.8 ± 0.9 |
18.0 ± 0.8 |
39.9 ± 1.7 |
* = significance of differences in relation to the control group;
** = significance of differences in relation to the group of animals with experimental
hepatitis (CCl4). |
[0234] Table 29 summarizes the data on changes in blood serum and hepatic final LP product
MDA level in injury, caused by CCl
4 and the effect of administering the test compounds. Toxic liver injury was accompanied
by a rise in MDA levels in both serum and liver. The treatment of animals with Legalon
and the compounds of the present invention resulted in normalization of the MDA level
in the tissues examined.
Table 29
| Effect of the compounds of the present invention on change in blood serum and hepatic
final lipid peroxidation product MDA level in rats with experimental hepatitis |
| Groups of animals |
Dose of compounds, mg/kg |
Serum MDA, nM/l |
Hepatic MDA, nM/1 |
| Control, intact animals |
- |
5.60 ± 0.60 |
3.49 ± 0.16 |
| CCl4 - 4 days |
- |
7.03 ± 0.38 |
5.98 ± 0.29* |
| |
|
p<0.05* |
p<0.001 |
| Legalon + CCl4 |
30.0 |
5.58 ± 0.15** |
4.17 ± 0.31** |
| |
|
|
p<0.001 |
| Compound III + CCl4 |
0.50 |
5.77 ± 0.15** |
4.60 ± 0.52** |
| |
|
p<0.05 |
p<0.05 |
| Compound III + CCl4 |
0.05 |
5.86 ± 0.70 |
5.00 ± 0.15** |
| |
|
|
p<0.05 |
| Compound XLIV + CCl4 |
0.50 |
4.72 ± 0.57** |
3.51 ± 0.30** |
| |
|
p<0.01 |
p<0.001 |
| Compound XLIV + CCl4 |
0.05 |
5.82 ± 0.38** |
4.47 ± 0.45** |
| |
|
p<0.05 |
p<0.05 |
* = significance of differences with the control group results;
** = significance of differences with the results obtained in the group of animals
with experimental hepatitis (CCl4). |
[0235] Thus, the test compounds of the present invention possess a pronounced antioxidant
and lipid-regulating effect, which is comparable with the effect of the reference
drug Legalon, and by a number of parameters the test compounds exceeded Legalon. At
the same time it should be noted that the test compounds were administered at doses
two to three orders lower than the Legalon doses.
EXAMPLE 39
HYPOLIPIDEMIC ACTIVITY OF THE COMPOUNDS OF THE PRESENT INVENTION
[0236] The hypolipidemic activity of the compounds of the present invention was studied
using the model of experimental hyperlipidemia described by Arichi et al, [
Arichi H., Kumura H.O., Effects of stibens compounds of roots of polygonum cuspidatium
on the lipid metabolism, Chem Pharm. Bull. (1982), Vol. 30, No 5, pp. 1766-1767], with mongrel male rats with an initial body mass of 220-250 g. Following a standard
ration for 10 days the rats, were intragastrally administered an oil suspension comprising
10% cholesterol and 1% cholic acid (at a rate 1 ml suspension per 100 g body mass).
Each group of animals included 10 rats. The test compounds III, V, VI, VII, VIII,
IX, X, XIII, XXVIII, XLIV, XLVII, L and LI were orally administered to animals at
doses 50 and 500 µg/kg during the last four days of the experiment. As a reference
drug, nicotinic acid was used, administered at a dose of 10 µg/kg to animals for 10
days at the background of atherogenic load. Blood samples were taken for analysis
18 hours after the last administration of the test substances, during which period
food was taken away from the rats.
[0237] The following parameters were determined: total cholesterol (total CS); high density
lipoprotein cholesterol (HDL-CS); low density lipoprotein cholesterol and very low
density lipoprotein cholesterol (LDL-CS and VLDL-CS); and triglycerides (TG). Blood
serum CS level was determined according to the Ilk method [
Biochemical examination in the clinic. Ed. by Pokrovsky A.A. Moscow, Meditsina publishers
(1969), pp. 300-302]. HDL-CS level was measured in supernatant following heparine-manganese precipitation
of LDL+VLDL [
Titov V.N., Brener E.D., Khaltaiev N.G., Zadoya A.A., Tvorogova M.G., A method and
diagnostic significance of cholesterol level study in α-lipoproteins. Laboratomoye
delo (Laboratory Matter) (1979), No 1, pp. 36-41]. LDL-CS level determination was carried out by calculation according to the formula
described by Friedwald et al [
Friedwald W.T., Levy K.J., Leus R. Fat transport in lipoproteins: an integrated approach
to mechanism and disorders, New Engl. J. Med. (1967), Vol. 276, p. 32].
[0240] The administration of fat a suspension to animals was accompanied by a significant
rise in the blood serum CS level, at the expense of the atherogenic fractions of lipoproteins
(LDL and VLDL) with a background of a decrease in the level of the antiatherogenic
fraction (HDL). A three-fold rise in atherogeneity index was observed. A significant
rise in blood serum TG was also noted (Table 30). When the test compounds were administered
to animals (Table 31), at both doses a drop of 10-26 percent in the total cholesterol
level was noted as compared to the animals with atherogenic load, at the expense of
LDL-CS and VLDL-CS lowering, and a rise of 20-100 percent in HDL-CS was typically
noted. The drop in cholesterol atherogeneity index K
cs was practically down to the control values, and was observed with administration
of all the test compounds. Blood TG level in animals dropped to the control values
upon administration of the test compounds.
Table 30
| Effect of nicotinic acid on the level of cholesterol and triglycerides in blood serum
of experimental animals |
| Groups of animals Parameters |
Control 1 |
Atherogenic diet 2 |
Atherogenic diet + nicotinic acid 3 |
| Total-CS |
68.8 ± 2.3 |
96.9 ± 10.8*1 |
65.7 ± 3.5 |
| HDL-CS |
37.5 ± 1.0 |
27.1 ± 1.3 |
42.1 ± 4.2***1,2 |
| LDL-CS + VLDL-CS |
30.9 ± 0.9 |
68.7 ± 4.8***1 |
25.7 ± 2.8***2 |
| Triglycerids |
84.9 ± 3.2 |
146.5 ± 12.9***1 |
89.4 ± 6.2***2 |
| Kcs |
0.835 |
2.58***1 |
0.56***2 |
| * = significance of differences, * = p<0.05; ** = p<0.01; *** =p<0.001. The superscript
numbers signify the groups in relation to which differences are significant. |
[0241] As an example of the effect of the test compounds on change in blood lipid composition,
Table 31 summarizes the effect results of some of the compounds of the present invention
on blood lipid composition in animals which were given an atherogenic load. The administration
of these compounds was shown to normalize all the examined parameters, practically
to the control values.
Table 31
| Effect of the compounds of general formula (I) on blood levels of cholesterol and
triglycerids in experimental animals |
| Parameters |
|
|
|
|
|
| |
Total CS |
HDL-CS |
LDL-CS+ |
Triglycerides |
Kcs |
| Groups |
|
|
VLDL-CS |
|
|
| Control-1 |
72,2±2,9 |
29,6±2,6 |
42,6±2,7 |
104,7±8,0 |
1,44±0,1 |
| Atherogenic diet |
93,3±3,7*** |
21,3±1,5* |
72,0±4,0*** |
261,7±11,6*** |
3,38±0,2*** |
| Compound VII, 50 µg/kg |
72,3±4,9**A |
26,0±1,9 |
46,3±3,2***A |
250,6±12,0 |
1,78±0,12***A |
| Compound VII, 500 µg/kg |
78,1±3,3* |
22,3±2,2 |
55,8±3,9**A |
251,4±12,71 |
2,5±0,17**A |
| Compound IX, 50 µg/kg |
78,4±4,4*A |
29,7±3,6*A |
48,7±4,4**A |
24,5±20,2 |
1,64±0,16***A |
| Compound IX, 500 µg/kg |
72,1±3,9**A |
20,1±1,6 |
52,0±3,4**A |
201,8±8,1***A |
2,59±0,17**A |
| |
|
|
|
|
|
| Compound XIII, 50 µg/kg |
76,3±5,5*A |
23,9±1,9 |
52,4±3,9**A |
201,2±8,7***A |
2,19±0,16***A |
| Compound XIII, 500 µg/kg |
69,3±3,7***A |
27,8±2,3*A |
41,5±2,9***A |
190,0±11,7***A |
1,49±0,1***A . |
| Compound XXVIII, 50 µg/kg |
85,4±4,0 |
34,6±4,6*A |
50,8±4,6**A |
157,5±12,4***A |
1,47±0,13***A |
| Compound XXVIII, 500 µg/kg |
80,7±4,8 |
47,0±6,9*A |
33,7±3,4***A |
204,1±22,1*A |
0,72±0,07***A |
| Compound X, 50 µg/kg |
87,9±7,0 |
31,8±3,3*A |
56,1±5,0*A |
218,7±17,9 |
1,76±0,16***A |
| Compound X, 500 µg/kg |
71,3±2,3***A |
38,4±4,5**A |
32,9±2,5***A |
179,2±18,3**A |
0,86±0,06***A |
| Compound VI, 50 µg/kg |
86,0±5,2 |
35,7±5,6*A |
50,3±5,5**A |
141,2±16,1***A |
1,41t0,16***A |
| Compound VI, 500 µg/kg |
70,8±3,7***A |
45,8±3,5***A |
25,0±1,6***A |
127,2±7,1***A |
0,55±0,04***A |
| Control-2 |
82,9±5,1 |
49,3±3,7 |
33,9±2,9 |
84,3±5,7 |
0,68±0,05 |
| Atherogenic diet |
100,6±4,3* |
33,8±2,5** |
66,8±3,3*** |
157,9±9,0*** |
1,98±0,1*** |
| Compound XLVII50 µg/kg |
86,5±3,9*A |
44,1±1,9**A |
42,4±1,7***A |
90,0±7,7***A |
0,96±0,04***A |
| Compound XLVII 500 µg/kg |
90,0±2,4 |
40,8±4,8 |
50,8±3,6**A |
116,7±10,8*A |
1,27±0,09 |
| Compound III, 50 µg/kg |
87,8±2,8*A |
46,1±2,8**A |
41,7±3,1***A |
136,4±9,7 |
0,9±0,04***A |
| Compound III, 500 µg/kg |
86,2±5,6 |
53,1±6,2*A |
33,1±2,9***A |
90,0±6,7***A |
0,62±0,05***A |
| Compound XLIV, 50µg/kg |
84,7±3,0**A |
47,3±1,1***A |
37,4±1,1***A |
85,0±6,3***A |
0,79±0,02***A |
| Control-3 |
94,1±1,2 |
45,6±2,5 |
48,5±2,4 |
112,1±10,6 |
1,06±0,03 |
| Atherogenic diet |
107,7±6,1* |
27,6±1,5*** |
80,1±3,1*** |
207,1±16,0 |
2,90±0,16***A |
| Compound V, 50 µg/kg |
103,4±2,8 |
40,0±3,1**A |
63,3±1,9*A |
181,2±12,2 |
1,58±0,09***A |
| Compound LI, 50 µg/kg |
99,1±4,5 |
39,8±1,6**A |
59,3±3,5*A |
132,1±17,4**A |
1,49±0,07***A |
| Compound VIII, 50 µg/kg |
98,8±7,2 |
31,7±2,4 |
67,1±3,1*A |
136,8±18,2*A |
2,12±0,16**A |
| Compound L, 50 µg/kg |
94,1±2,1 |
31,0±2,1 |
63,1±2,4*A |
141,6±12,6**A |
2,03±0,09***A |
* = differences are significant in relation to the control groups,
*A = differences are significant in relation to the groups of animals which were given
atherogenic ration,
* = p<0.05; ** = p<0.01; *** = p<0.001. |
[0242] Thus, the changes in blood serum lipid composition upon administering of the test
compounds to experimental animals are comparable with the hypolipidemic effect of
the reference drug nicotinic acid (table 30).
EXAMPLE 40
EXPERIMENTAL STUDY OF HYPOGLYCEMIC ACTIVITY OF THE COMPOUNDS OF THE PRESENT INVENTION
[0243] The experiments were carried out on Wistar male rats weighing 250-300 g. Experimental
diabetes was induced with a single intravenous injection of streptozotocine (the Synthez
cooperative enterprise at the IMBG of the Academy of Sciences of Ukraine), at a dose
of 42 mg/kg, to rats which were preliminarily starved for 24 hours, with access to
food provided immediately following the injection. Rats were selected for experiments
2 weeks after diabetes induction with glycemia 120-180 mg/dl. Each group included
12 animals.
[0244] The compounds were intragastrally administered to intact animals and to rats with
streptozotocine diabetes for four days at daily doses of 50 µg/kg and 500 µg/kg, in
a water solution at a rate of 1 ml per 200 g of body mass. Intact animals were given
compounds III and XLIV, and rats with induced diabetes were given compound XLIV. Blood
glucose level determination was done at the day of experiment, then animals were administered
the test compounds and were deprived of food. The control animals received a corresponding
volume of water. The effect was estimated based on the change in blood glucose level
at 2 and 5 hours. Then animals received forage and 24 hours after the last drug administration
blood was again sampled for examination -0.1 ml of blood was collected from the tail
vein. The glucose level was determined using the o-toluidine method.
[0245] The glucose level was calculated in mg/dl, using standard glucose solutions. Then
the degree of change in glucose level in relation to the initial level was determined
for each animal, with its expression in percent from the initial level. A final calculation
was performed for each group of animals. Each group included 10 animals.

[0246] The results presented in Table 32 give evidence of the fact that compound XLIV has
no effect on the curve of blood glucose level changes in intact animals following
a short-term fasting period, while compound III administered at a dose of 500 µg/kg
prevented a drop in blood glucose level in intact rats two hours after food deprivation.

[0247] The data presented in Table 33 shows that intragastral administration of compound
III for four days at daily doses 50 and 500 µg/kg results in a significant drop in
blood glucose level two hours after the last drug administration to animals. A hypoglycemic
antidiabetic effect was maintained 5 hours post administration, however, this effect
was less pronounced.
[0248] Thus, the compounds of the present invention either have no effect or stabilize the
blood glucose level in intact animals, and they possess a glucose-lowering activity
in rats with streptozotocine diabetes, which is equally pronounced with administration
at doses of both 50 µg/kg and 500 µg/kg.
[0249] The results presented in examples 38-40 give evidence of the fact that the compounds
of the present invention possess a pronounced hepatoprotective effect. This effect
compounds is explained by the fact that when they are administered into the body there
occurs a functional rearrangement of many central body systems which participate in
maintaining homeostasis.
EXAMPLE 41
EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON LEWIS PULMONARY CARCINOMA GROWTH
[0250] Experiments were carried out on male mice with an initial body mass of 18-20 g. Each
group included 10 animals. Tumor transplantation was performed according to the standard
technique [Experimental estrimation of antitumor drugs in the U.S.S.R. and the U.S.A.
edited by E.P.Sof'ina, A.B.Syrkin, A.Goldin, A.Kline. Moscow, Meditsina publishers
(1980), 296, pp.]. The administration of compounds II, III
, IX, X, XH, XIV, XV, XVI, XVII (comparative example) XIX, XX, XXI, XXII and XLVII
in drinking water was commenced 24 hours following transplantation and continued till
the end of the experiment. The effect of the compounds on Lewis rat pulmonary carcinoma
(LLC) was estimated on day 12 of the experiment based on the change in tumor volume
expressed in mm
3.
[0251] The data presented in Table 34 show that all the tested compounds inhibit LLC growth,
though to a different extent.
Table 34
| Effect of the compounds of the present invention on Lewis pulmonary carcinoma growth |
| Administered compound |
Tumor volume (mm3) |
Growth inhibition percent |
| control, intact animals |
1492 ± 230 |
- |
| XXII |
985 ± 179 |
34 |
| XLVII |
826±119* |
45 |
| Control, intact animals |
2633 ± 275 |
- |
| III |
1249± 168** |
53 |
| II |
1025±150** |
61 |
| IX |
2372 ±323 |
10 |
| X |
1221 ± 209** |
54 |
| XII |
1299 ± 145** |
51 |
| XVII |
1367 ± 233** |
48 |
| Control, intact animals |
1373 ± 114 |
- |
| XXI |
1023 ± 107 |
25 |
| XIX |
994 ± 173 |
28 |
| XX |
1148 ± 112 |
16 |
| Control, intact animals |
2436 ± 260 |
- |
| XVI |
1076 ± 69** |
56 |
| XIV |
779 ± 94** |
68 |
| XV |
889 ± 67** |
63 |
| *= significance of differences in relation to the respective control, * = p<0.02;
** = p<0.01 |
EXAMPLE 42
EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON LEWIS PULMONARY CARCINOMA METASTASIZATION
A. Antimetastatic activity study of the compounds of the present invention.
[0252] The study was carried out on BDF
1 female mice with an initial body mass of 25-30 g. Each group included 15 animals.
0.3 ml of LLC tumor tissue suspension was intramuscularly injected, to the mice. Henks
solution was used as a solvent. The test compounds II, III, VI, IX, X, XII, XXIII
and XLIV were dissolved in water and orally administered to animals for 24 days, at
dose of 50 and 500 µg/kg,in 0.2 ml of solvent, beginning from day two following tumor
transplantation. At day 25 of the experiment the animals were sacrified and their
lungs were resected and fixed in Bouen solution using the MBS-9 microscope at a magnification
of 8 x 2. 24 hours following fixation, pulmonary metastatic colonies were calculated.
Metastasizing index calculation was carried out in accordance with the methodological
recommendations [
Methodological recommendations on preclinical study of agents possessing ability to
inhibit metastasizing process and to enhance efficacy of cytostatic therapy of malignant
tumors. Moscow (1992) 13 pp.].
[0253] The test compounds were found to inhibit the spontaneous metastasizing process of
the transplantable LLC tumor in the presence of a primary tumor node of different
degree (by from 20 to 70 percent). Table 35 summarizes the results demonstrating the
high antimetastatic activity of the test compounds.
[0254] Activity criterion for antimetastatic drugs is their ability to inhibit metastasizing
by 35 percent.

[0255] An important , property of the compounds of the present invention is their ability
to manifest pharmacological activity on the model with resection of the primary tumor
node and not to lower the therapeutic efficacy of respective antitumor drugs. This
property was demonstrated by experiments using a model wherein a spontaneously metastasizing
LLC tumor is transplanted into the paw pads of C57BL/6 female mice weighing 20-25
g. Surgical resection of the primary tumor, node was performed 13 days following tumor
transplantation. The test anitumor compounds were administered according to two dosage
regimens:
Dosage regimen 1 - the animals were administered compound III from day 1 till day
13 of the experiment, at a dose of 500 µg/kg (group 1); cyclophosphane was administered
intraperitoneally twice before operation, with a 96 hour interval, at a dose of 100
µg/kg (group 2); a combined administration of compound III and cyclophosphane was
administered in a similar manner to the substances in groups 1 and 2 (group 3). The
number of metastases was calculated at day 29 of the experiment.
Dosage regimen 2 - the animals were administered compound III from day 14 of the experiment
(commencement of administration 24 hours post operation) till day 28 (group 4); cyclophosphane
was administered twice post operation, with a 96 hour interval, at a dose of 100 µg/kg
(group 5); a combined administration of compound III and Cyclophosphane was administered
in a similar manner to the substances of groups 4 and 5 (group 6). The antimetastic
efficacy of the drugs was considered at day 29 of the experiment.
[0256] The experimental results are presented in Table 36. As seen from these results, compound
III manifested antimetastatic activity in the model, with surgical resection of the
primary tumor node, and in combined administration with cyclophosphane following tumor
resection, potentiation of the pharmacological effect was observed as well as summation
of the tested phenomenon in administering both drugs prior to surgical resection of
tumor.
Table 36
| Antimetastatic activity parameters of compound III under the conditions of surgical
resection of the primary tumor node and in combined administration with cyclophosphane |
| Experimental group |
Drugs |
Metastasizing rate
(%) |
Mean number of metastases |
Metastasizing inhibition percent |
| Administration of drugs prior to operation according to dosage regimen 1 |
| Control |
Normal saline |
100 |
34.8 ± 4.9 |
|
| Group 1 |
compound III |
100 |
32.0 ±11.8 |
8.0 |
| Group 2 |
Cyclophosphane |
100 |
19.5 ± 5.1* |
43.9 |
| Group 3 |
Compound III + |
100 |
16 ± 2.4*** |
52.8 |
| Administration of drugs post to operation according to dosage regimen 2 |
| Control |
Normal saline |
100 |
37.1 ± 13.2 |
|
| Group 4 |
compound III |
100 |
28.6 ± 8.5 |
22.9 |
| Group 5 |
Cyclophosphane |
100 |
18.0 ± 4.3* |
51.5 |
| Group 6 |
Compound III + Cyclophosphane |
100 |
6.7 ± 0.9* |
81.9 |
B.A comparative estimation of antimetastatic sactivity of the compound III substance
and its tabletted dosage form
[0257] To estimate the therapeutic efficacy of compound III in a tabletted dosage form (0.2
g tablets 6 mm in diameter comprising 17 mg substance) studies were carried out on
the model of spontaneous LLC carcinoma metastasizing.
[0258] Experiments were carried out on C57BL/6 female mice weighing 20-25 g. Experimental
groups included 8 animals and the control groups had 11 mice. The substance form and
tabletted dosage form of compound III were administered, orally at a dose of 500 µg/kg
(where 500 µg is the amount of the active agent), daily from day 1 till day 10 of
the experiment. The experiment lasted for 24 days.
[0259] The experimental results are presented in Table 37. They give evidence of the fact
that the parameters of antimetastatic activity of the substance and tabletted dosage
forms are practically similar.
Table 37
| Comparative therapeutic efficacy study of compound III substance and dosage form |
| Groups |
Antimetastatic activity parameters |
| Metastasizing rate in percent |
Tumor mass (g) |
Mean number of metastases |
Metastasizing inhibition percent |
| Control |
100 |
13.5 ± 0.9 |
42.0 ± 7.5 |
|
| Substance |
100 |
12.9 ± 0.9 |
22.5 ± 0.9* |
46.4 |
| Dosage form |
100 |
12.9 ± 0.6 |
18.8 ±2.7** |
55.2 |
*,*** - significance of differences in relation to the control,
* - p<0.05; ***- p<0.001. |
EXAMPLE 43
STUDY OF THE EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON RESISTANCE OF ANIMALS
TO MICROBIAL INFECTIONS
[0260] The effect of the compounds of the present invention on the change in the average
lifetime of experimental animals infected with Salmonella spp.
[0261] The experiments were carried out on mongrel white mice of both sexes weighing 18-22
g. Compounds III, XLIV and the reference drug sodium nucleinate were administered
orally for 3 days prior and post infection (i.e. a total of 6 times with a dosage
regimen -3, -2, -1, 0, 1, 2, 3, where 0 is infection day). A 24-hour Salmonella spp.
culture grown on Hottinger agar was used for infecting. Normal saline solution was
used to prepare a cellular suspension. The suspension of Salmonella spp. cells was
administered subcutaneously at a dose of 5 x 10
8 cells per mouse in 0.5 ml.
[0262] The test compounds were administered at a dose of 500 µg/kg and the reference drug
sodium nucleinate at a dose of 50 µg/kg, in 0.5 ml of normal saline solution.
[0263] At a dose 500 µg/kg the test compounds significantly increased the average lifetime
of mice infected with Salmonella spp. (Table 38), exerting a protective effect under
strict experimental conditions (a hundred percent lethality in the control group).
A significant rise in the survival rate of mice administered compound III was observed
day 2 of the experiment as compared with the control group, and by day 1 of the experiment
for animals which were administered compound XLIV. At the same time it was established
that the distribution character of lethal outcomes in animals of the control group
was abnormal, while as affected by compounds III and XLIV the distribution became
normal. This confirms the efficacy of the tested compounds.
[0264] The protective effect of the test compounds in relation to bacterial infection was
comparable to the effect of sodium nucleinate, which is a known promoter of immune
responses, including phagocytosis [
Lazareva D.L., Alekhin E.K. Immunity stimulants (1985), 286 pp.]. An efficient dose of the test compounds was two orders lower than the corresponding
dose for the reference drug.
[0265] Thus, the compounds of the present invention possess a protective effect against
microbial infection.

The superscript numbers signify the control groups in relation to which the differences
are significant.
EXAMPLE 44
ANTIVIRAL ACTIVITY OF THE COMPOUNDS OF THE PRESENT INVENTION
A. Protective effect of compound XLIV in infection caused by encephalomyocarditis
virus
[0266] Sudies were carried out on mongrel mice of both sexes with an initial body mass of
10-11 g. The control and experimental groups included 30 animals each. Compound XLIV
and the reference drug interferon inducer Ridostine were administered once intraperitoneally
24 hours after the mice were infected with the encephalomyocarditis virus at doses
of 30 µg/kg and 5.0 mg/kg, respectively. The encephalomyocarditis virus was administered
at a dose of 100 LD
50 Antiviral activity was determined by change in mean lifetime (MLT) of mice and the
degree of protection provided against lethal viral infection.
[0267] The results obtained are presented in Table 39. It is shown that compound XLIV possesses
pronounced antiviral activity at a dose which, compared to the reference drug dose,
is two orders lower. Table 39
| Antiviral activity of the test compound XLIV |
| Group of animals |
MLT, days |
Survival rate, percent |
Protection degree, percent |
| Control |
7.2 |
13.3 |
0 |
| Compound XLIV |
12.5* |
30.3* |
17.0 |
| Ridostine |
13.3* |
82.0* |
668.7 |
* = significance of differences in relation to the control group;
* = p<0.05; ** = p<0.01 |
B. Effect of the compounds of the present invention on intensity of influenzal infection
in mice
[0268] Studies were carried out on white mongrel mice of both sexes weighing 8-10 g. Strain
Aichi (allantois fluid) of type A human influenza virus was intranasally administered
to the mice at a dose LD
50. The test compounds III, VI, VIII, XXXIII, XLVIII and XLVIII were orally administered
to animals for three days before infection and for ten days following infection. Arbidol
(a specific drug) was used as a reference drug, at a dose of 100 mg/kg, and was administered
24 and 2 hours prior to and 3 days post infection, and Tymogen (non-specific drug)
was administered to animals at a dose of 10 µg/kg according to the same dosage regimen
as the test compound. Antiviral activity was determined based on the MLT of the mice
and the protection provided against lethal viral infection.
[0269] The study results are presented in Table 40. It was shown that the largest increase
in MLT, survival rate and the degree of protection were observed when compound VII
was administered at a dose of 500 µg/kg. The administration of the other tested compounds
at doses of 50 and 500 µg/kg, and of Arbidol, was accompanied by an equal change in
the parameters. The effect of Tymogen as an antiviral drug was less expressed.
[0270] Thus, the presented data give evidence of a pronounced antiviral effect for compounds
of the present invention in experimental viral infection in mice caused by type A
human influenza virus.
Table 40
| Antiviral effect of the compounds of the present invention on experimental influenzal
infection in mice |
| Group of animals, order Nos |
MLT, days |
Survival rate in percent |
Protection degree in percent |
| 1. control-1 |
5.76 |
16.7 |
- |
| 2. Arbidol |
9.22* |
43.4* |
26.7 |
| 3. Thymogene |
8.02 |
30.0 |
13.3 |
| 4. Compound VIII, 50 µg/kg |
9.88*1 |
40.0*1 |
23.3 |
| 4. Compound VIII, 500 µg/kg |
14.37**1 |
56.7*1 |
40.0 |
| 5. Compound XLVIII, 50 µg/kg |
9.58*1 |
34.5*1 |
17.8 |
| 6. Control - 2 |
9.1 |
34.5 |
- |
| 7. Arbidol |
13:88*2 |
94.7*2. |
60.2 |
| 8. Compound VI, 50 µg/kg |
11.24*2 |
73.3*2 |
38.8 |
| 8. Compound VI, 500 µg/kg |
11.62*2 |
79.3*2 |
44.8 |
| 9. Compound III, 50 µg/kg |
10.1 |
86.6*2 |
52.1 |
| 9. Compound III, 500 µg/kg |
11.5*2 |
76.6*2 |
42.2 |
| 10. Compound XLVII, 50 µg/kg |
13.0*2 |
83.3*2 |
48.8 |
| 10. Compound XLVII, 500 µg/kg |
10.0 |
79.3*2 |
44.8 |
| 11. Compound XXXIII, 50 µg/kg , |
9.09 |
63.3 |
28.8 |
| 11. Compound XXXIII, 500 µg/kg |
11.9 |
76.6*2 |
76.6 |
* = significance of differences in relation to the control group;
* = p<0.05; **= p<0.01. |
B. Effect of the compounds of the present invention on human immunodeficiency virus
reproduction in acute infection of lymphoblastoid cells
[0271] The study was carried out using a culture of human lymphoblastoid cells, namely MT-4
cells HIV-1/IV17 of type 1 human immunodeficiency virus isolated from the collection
of the D.I.Ivanovsky Institute for Virology was used in the experiment. The test compounds
III, VI and VII were introduced into the cellular culture at concentrations of 1.0,
0.1 and 0.01 µg/ml. The reference drug Azidothymidine was introduced at a dose of
0.05 µM/ml. The compounds were introduced into the culture of MT-4 cells at a dose
of 1000 TCD
50 one hour prior to introduction of the virus. Viability of MT-4 cells was estimated
at day 7 of the experiment.
[0272] The viability of the cells was the main efficacy parameters of the test compounds.
[0273] Preliminary experiments showed that the test compounds, are non-toxic for lymphoblastoid
cells at concentrations of 1.0 µg/ml and less.
Table 41
| Effect of the test compounds on viability of MT-4 cells infected with HIV-1 |
| Group |
Compound dose |
Viability of cells in percent |
| Non-infected cells - 1 |
- |
90 |
| Infected cells - 1 |
- |
10-17 |
| Azidothymidine |
0.05 µM/ml |
75*1 |
| Compound III |
0.01 µg/ml |
18 |
| Compound III |
0.1 µg/ml |
39*1 |
| Compound III |
1.0 µg/ml |
68*1 |
| Non-infected cells - 2 |
- |
88 |
| Infected cells - 2 |
- |
24 |
| Azidothymidine |
0.01 µg/ml |
72*2 |
| Compound VI |
0.01 µg/ml |
45*2 |
| Compound VII |
0.1 µg/ml |
49*2 |
| Compound VI |
1.0 µg/ml |
54*2 |
| Compound VII |
0.01 µg/ml |
34 |
| Compound VII |
0.1 µg/ml |
49*2 |
| Compound VII |
1.0 µg/ml |
51*2 |
| * = significance of differences in relation to the respective group of infected cells,
*= p<0.01. |
[0274] The results presented in Table 41 show that the test compounds, at concentrations
of 1.0 and 0.1 µg/ml, exhibit a protective effect against the cytodestructive HIV-1
effect. The effect of the compounds is pronounced to a different extent for each compound,
the effect of compound III being comparable with the effect of the reference drug
Azidothymidine.
EXAMPLE 45
EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON THE ACTIVITY OF PERIPHERAL BLOOM
NEUTROPHILS
[0275] Experiments were carried out on C57BL/6 female mice with intramuscularly transplanted
LLC carcinoma. The activity of neutrophils was measured on days 11 and 14 of the experiment.
[0276] The experimental animals were divided into four groups:
control - animals with LLC tumor, 10 animals;
animals with LLC tumor + compound III at a dose 500.0 µg/kg for 10 days, 8 animals;
animals with LLC tumor + cyclophosphane 5 times at a dose 20.0 mg/kg (in 48 hours)
for 10 days, 8 animals;
compound III and Cyclophosphane according to the above dosage regimen, 8 animals.
[0277] The duration of the experiment was 14 days. Table 42 summarizes the results of the
study of neutrophil activity in the animals of the experimental groups.
Table 42
| Change in the activity of neutrophils in C57/BL/6 mice with LLC in combined and individual
administration of compound III and Cyclophosphane |
| Experimental Group |
Percent of active neutrophils |
| Background |
day 11 |
day 14 |
| Control |
22.4 ± 3.5 |
13.0 ± 3.0 |
16.9 ± 1.8 |
| Compound III |
20.1 ± 2.7 |
9.3 ± 1.7 |
15.3 ± 4.3 |
| Cyclophosphane |
21.5 ± 3.4 |
7.6 ± 2.0 |
20.6 ± 6.0 |
| Compound III + Cyclophosphane |
21.9 ± 4.2 |
20.8 ± 5.4 |
26.0 ± 3.4* |
| *= Significance of differences in relation to the control, p<0.05. |
[0278] The development of LLC carcinomas was shown to be accompanied by a decrease in the
number of active forms of neutrophils in the peripheral blood of experimental animals.
The animals which were administered a combination of compound III and Cyclophosphane,
were characterized by a significantly higher activity level of neutrophils as compared
with the control animals.
EXAMPLE 46
EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON THE ACTIVITY OF PERITONEAL MACROPHAGES
[0279] Changes in the activity of peritoneal macrophages (PM), as effected by the test compounds,
were studied.
[0280] The experiments were carried out on mongrel white male mice with an initial body
mass of 20-22 g. Each group included 10 animals. Compounds III, VI, XLIV were dissolved
in normal saline (NS). The test compounds were administered to animals orally for
three days at doses of 50 and 500 µg/kg. The animals of the control group were given
an equal volume of NS. The mice were sacrified 20 hours after the last compound administration
and the peritoneal cavity was washed with 1.5 ml Henks solution comprising 5 U/ml
heparine. 0.1 ml of the wash solution was incubated for 30 minutes at 37°C, with 0.1
ml 0.2% nitroblue tetrasolium (NBT) solution, then smears were prepared. Nuclei were
additionaly stained with 0.1% neutral red solution. The results were expressed as
a percentage of active cells [
Klimov V.V., Kolovkina T.V. Nitroblue tetrasolium reduction test stimulated with pyrogenal.
Laborotornoye delo (Laboratory matter) (1982), No 10, pp. 624-625]. PM activity degree was estimated based on the amount of reduced NBT inclusions
(formazane) according to the following scores:
0 - no formazane inclusions, inactive PM;
1- single formazane inclusions;
2 - inclusions fill up to 1/3 of PM cytoplasm;
3 - inclusions fill up to 1/2 of PM cytoplasm;
4 - inclusions fill up all cytoplasm.
Table 43
| Change in the activity of peritoneal macrophages as effected by the compounds of the
present invention |
| Group of Animals |
Activity of macrophages, percent |
| 0 |
1 |
2 |
3 |
| Control |
25.3 ± 4.2 |
35.7 ± 3.6 |
32.6 ± 3.9 |
6.4 ± 1.4 |
| Compound XLIV, 50µg/kg |
23.9 ± 4.4 |
37.3 ± 3.4 |
34.9 ± 5.9 |
5.4 ± 2.0 |
| Compound XLIV, 500 µg/kg |
17.4 ± 2.5* |
37.3 ± 3.9 |
35.8 ± 4.4 |
9.4 ± 2.9* |
| Compound III, 50µg/kg |
11.6 ± 2.8* |
27.5 ± 2.5* |
44.6 ± 1.9* |
15.8 ± 3.3* |
| Compound III, 500µg/kg |
12.8 ± 1.3* |
31.3 ± 2.3 |
46.0 ± 2.6* |
10.9 ± 2.1* |
| Compound VI, 50µg/kg |
17.9 ± 1.4* |
30.9 ± 3.0 |
40.3 ± 2.1* |
10.4 ± 1.9* |
| Compound VI, 500 µg/kg |
20.3 ± 3.4 |
37.9 ± 3.1 |
34.0 ± 4.0 |
7.1 ± 2.0 |
| * = significance of differences in relation to the control group; * = p<0.01: |
[0281] The data presented in Table 43 show that the tested compounds increase the portion
of active macrophages at the expense of a decrease in the amount of inactive forms,
the effect of compound III in study being pronounced at both substance doses, while
the effect of compound XLIV is more pronounced at a dose 500 µg/kg, and that of compound
VI is more pronounced at a dose 50 µg/kg.
[0282] Thus, the tested compounds posses the ability to increase the portion of active forms
of macrophages but at different doses.
EXAMPLE 47
EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON CHANGES IN PROSTACYCLINE TO THROMBOXANE
RATIO IN MICE WITH PULMONARY CARCINOMA
[0284] The ratio of thromboxane A
2 to prostacycline was determined according to the technique described in example 35.
At day 24 of the experiment the animals were sacrified and the test parameters were
determined.
[0285] Groups of animals:
Group 1-intact control.
Group 2 - mice with transplanted Lewis carcinoma.
Group 3 - mice with transplanted Lewis carcinoma + compound III.
Table 44
| Change in arachidonic acid metabolism in mice with transplanted Lewis carcinoma as
effected by compound III |
| Group |
Prostacycline |
Thromboxane A2 |
Ratio 6-keto-PGF1α :TXB2 |
| Group 1 |
8.9 ± 0.42 |
5.98 ± 0.30 |
1.5 ± 0.05 |
| Group 2 |
4.57 ± 0.07**C |
7.6 ± 0.31*C |
0.60 ± 0.03**C |
| Group 3 |
5.80 ± 0.75*2 |
7.23 ± 0.18*C |
0.80 ± 0.11*2 |
| * = significance of differences between groups: C = control group; 2 = group 2; *
= p < 0.05;**=p<0.01. |
[0286] The data presented in table 44 give evidence of the fact that in mice with transplanted
Lewis carcinoma the thromboxane A
2 level was found to rise by 1.4 times and a twofold drop in prostacycline formation
and prostacycline to thromboxane A
2 ratio were detected. The administration of compound III to animals results in a rise
in prostacycline formation and in the prostacycline to thromboxane A
2 ratio, as well as a drop in thromboxane A
2 synthesis.
EXAMPLE 48
EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON THE DEVELOPMENT OF POSTSRESS CONDITIONS
IN MICE
[0287] Experiments were carried out on inbred Balb male mice with an initial body mass of
16-18 g. Each group included 12 animals. The model of swimming in warm water for 20
minutes was used to develop emotional-locomotory stress in the animals. Stress development
was estimated based on the activity of natural killer lymphocytes (NK cells) and the
functioning of the interferon system [Sukhikh T.G., Nossik N.N., Parshina O.V., Van'ko
L.V., Meerson F.Z., Yershov F.I., Relationship between the natural cellular cytotoxicity
system and the interferon system in immobilization stress, Bulletin of Experimental
Biology (1984), N°, pp. 593-595].
[0288] The activity of NK-cells was determined using the test of H
3-uridine release from the labelled target cells YAC-1 (mouse cellular lymphoma maintained
by passages in vitro in suspension in the RPMI-1640 medium with 10% fetal serum).
The H
3-uridine (3-5 µC/cells/ml) was introduced into the cellular suspension at a concentration
of 1 million cells/ml in the 60th minute, while shaking with a 15 minute interval
and subsequent washing with the medium.
[0291] The animals were divided into four groups, each including 36 mice.
Group 1- intact animals not subjected to stress and given normal saline (NS).
Group 2 - animals which were subjected to stress effect and given NS.
Group 3 - animals which were subjected to stress effect and administered compound
III.
Group 4 - animals which were subjected to stress effect and administered compound
XLIV.
[0292] The test compounds (at a dose 50 µg/kg) and NS were orally administered to animals
four times, according to the following dosage regimen: for two days before exposure
to stress (first and second administrations), two hours prior to stress (third administration)
and 24 hours after third administration (fourth administration).
[0293] The activity of NK-cells and interferon state were dynamically determined 4 hours
following stress, 24 hours later and then on days 5, 7 and 10.
Table 45
| Change in activity of NK-cells as effected by the compounds of the present invention |
| |
Time after stress, days |
| Group of animals |
0.16 |
1 |
5 |
7 |
10 |
| 1. Intact control |
81 ± 0.82 |
79 ± 1.32 |
79 ± 0.99 |
76 ± 0.66 |
80 ± 0.99 |
| 2. Stress |
57.3 ± 0.82***1 |
39 ± 48***1,3 |
68.3 ± 1.65 |
76.5 ± 0.49 |
71.7 ± 2.46*1 |
| 3. Stress compound III |
+ 68.5 ± 0.99*1,2 |
69.3 ± 1.81***2 |
79 ± 1.46 |
69.3 ± 4.85 |
77 ± 1.98 |
| 3. Stress compound XLIV |
+69.5 ± 1.32**2 |
61.5 ± 2.64*1,2 |
71 ± 0.82 |
67.7 ± 3.95 |
77.5 ± 1.65 |
*, ** = significance of differences; the superscript numbers signify groups in relation
to which differences are significant;
*= p < 0.05; ** = p<0.01 |
[0294] The results presented in Table 45 show that administration of the test compounds
prevents the drop in the activity of NK-cells caused by stress. In addition, the administration
of the test compounds to animals results in normalization of α-interferon production
and raises γ-interferon production (Table 46).
Table 46
| Effect of the test compounds of general formula (I) on α-interferon and γ-interferon
production by splenocytes of mice under poststress conditions |
| Group of animals |
Time after stress, days |
| 0 |
0.16 |
1 |
5 |
7 |
10 |
| α-interferon, U/ml |
| 1. Intact control |
160 |
160 |
80 |
160 |
160 |
160 |
| 2. Stress |
160 |
10 |
10 |
16 |
32 |
16 |
| 3. Stress + compound III |
160 |
10 |
10 |
160 |
160 |
160 |
| 4. Stress + compound XLIV |
160 |
10 |
80 |
80 |
100 |
140 |
| γ-interferon, U/ml |
| 1. Intact control |
40 |
40 |
32 |
40 |
40 |
40 |
| 2. Stress |
80 |
20 |
40 |
40 |
10 |
10 |
| 3. Stress + compound III |
80 |
80 |
32 |
32 |
320 |
80 |
| 4. Stress + compound XLIV |
80 |
20 |
320 |
40 |
32 |
32 |
| Interferon production by splenocytes of 8 mice per measurement point. |
[0295] Thus, in animals which were administered the test compounds, the consequences of
stress reaction were less pronounced than-in mice which were not administered them.
EXAMPLE 49
EFFECT OF THE COMPOUNDS OF THE PRESENT INVENTION ON MITOGEN-INDUCED BLASTTRANSFORMATION
OF LYMPHOCYTES
[0296] Human lymphocytes were used for the blasttransformation reaction [
Kiseleva E.P., Tsveibakh A.S., Goldman E.I., Pigareva N.V., Application of a micromethod
to study blasttransformation of lymphocytes in humans and animals, Immunology (1985),
No 1, pp. 76-78]. 10 ml of blood was collected in a sterile syringe containing heparine (to a final
concentration 25 U/ml) and incubated to sediment red blood cells (60-90 minutes at
37°C). The leukocytic suspension layer was selected and the number of nucleated cells
was calculated. The obtained cells were incubated for 72 hours in a humid atmosphere
with 5% CO
2 at 37°C, in the cells of plates for immune reactions in RPMI-1640 medium comprising
15% fetal calf serum and 50 µg/kg Neomycine (incubation mixture volume 0.15 ml). 5
x 10
5 cells were introduced into each plate cell. Incubation was carried out in the presence
or absence of mitogen phytohemagglutinin (PHA) (Sigma) (13.3 µg/kg) or concanavalin
A (ConA) (Sigma) (13.3µg/kg), with or without addition of the test compounds at different
concentrations. 2 mCi H
3 -thymidine in RPMI-1640 medium was introduced into each cell 16 hours before termination
of incubation. Following termination of the culturing period. 0.15 ml of cellular
suspension from each plate cell was transferred onto FN-8 paper filters. The filters
were dried, washed twice with normal saline for 5 minutes and then washed with TCA
for 60 minutes. After drying the radioactivity of samples was calculated on a counter
in a ZhS-8 scintillator. The stimulation index was calculated as a ratio of the sample
radioactivity with mitogen to the sample radioactivity without mitogen.
[0297] The results presented in Tables 47-49, give evidence of a stimulating effect of compounds
XLIV and III on the blasttranformation reaction of human lymphocytes. Enhancement
of the reaction induced by both PHA and ConA was also observed.
Table 47
| Effect of compound XLIV on PHA- induced blasttranformation of human lymphocytes |
| No |
Compound XLIV concentration, M/l |
Mitogen |
Radioactivity, number of pulses for 20 seconds |
Stimulation index |
| 1 |
Control |
- |
139 ± 51 |
|
| |
|
+PHA |
3085 ± 166 |
22.2 |
| 2 |
10-8 |
- |
261 ± 100 |
|
| |
|
+PHA |
3830 ± 286* |
14.7 |
| 3 |
10-7 |
- |
300 ± 107 |
|
| |
|
+PHA |
2960 ± 210 |
9.9 |
| 4 |
10-6 |
- |
150 ± 33 |
|
| |
|
+PHA |
4414 ± 570* |
29.6 |
| 5 |
10-5 |
- |
132 ± 13 |
|
| |
|
+PHA |
2999 ± 213 |
23.2 |
| 6 |
10-4 |
- |
301 ± 103 |
|
| |
|
+PHA |
3276 ± 225 |
10.9 |
Table 48
| Effect of compound III on concanavalin A - induced blasttranformation of human lymphocytes |
| No |
Compound III concentration, M/l |
Mitogen |
Radioactivity, number of pulses for 20 seconds |
Stimulation index |
| 1 |
Control |
- |
317 ± 88 |
|
| |
|
+ConA |
941 ± 113 |
2.97 |
| 2 |
10-8 |
- |
234 ± 36 |
|
| |
|
+ConA |
849 ± 133 |
3.63 |
| 3 |
10-7 |
- |
478 ± 35 |
|
| |
|
+ConA |
1483 ± 67** |
3.10 |
| 4 |
10-6 |
- |
408 ± 75 |
|
| |
|
+ConA |
1922 ± 248** |
4.71 |
| 5 |
10-5 |
- |
467 ± 109 |
|
| |
|
+ConA |
1562 ± 134** |
3.34 |
| 6 |
10-4 |
- |
274 ± 28 |
|
| |
|
+ConA |
1197 ± 97 |
4.37 |
| 7 |
10-3 |
- |
330 ± 105 |
|
| |
|
+ConA |
680 ± 82 |
2.06 |
Table 49
| Effect of compound XLIV on concanavalin A - induced blasttranformation of human lymphocytes |
| No |
Compound XLIV concentration, M/l |
Mitogen |
Radioactivity, number of pulses for 20 seconds |
Stimulation index |
| 1 |
Control |
- |
361 ± 43 |
|
| |
|
+ConA |
1061 ± 243 |
2.94 |
| 2 |
10-8 |
- |
233 ± 54 |
|
| |
|
+ConA |
971 ± 44 |
4.17 |
| 3 |
10-7 |
- |
242 ± 19 |
|
| |
|
+ConA |
1786 ± 241* |
7.38 |
| 4 |
10-6 |
- |
289 ± 52 |
|
| |
|
+ConA |
1963 ± 205* |
6.96 |
| 5 |
10-5 |
- |
339 ± 32 |
|
| |
|
+ConA |
1695 ± 139* |
5.00 |
| 6 |
10-4 |
- |
322 ± 38 |
|
| |
|
+ConA |
1259 ± 90 |
3.91 |
| 7 |
10-3 |
- |
356 ± 51 |
|
| |
|
+ConA |
1072 ± 135 |
3.01 |
[0298] The data presented in examples 41-49 give evidence of the fact that the test compounds
possess immunomodulating activity, significantly inhibit the growth of a transplantable
tumor, the metastasizing process and increase the resistivity of animals to microbial
and viral infections.
[0299] All the above mentioned studies also show that the compounds of the present invention
possess the above mentioned biological efficacy at doses which are 2 to 3 orders lower
than the doses of known drugs that are used for practically similar efficacy.
[0300] Further, examples of dosage forms are presented below, in which the compounds of
the present invention can be used.
EXAMPLE 50
EXAMPLES OF DOSAGE FORMS
A. Gelatine capsules.
[0301] The composition of the powder introduced into a capsule is
| A compound of the present invention |
1-35 mg |
| Magnesium oxide |
50 mg |
| Starch |
100-200 mg. |
[0302] The above indicated ingredients are mixed and the mixture is introduced into solid
gelatine capsules at an amount of 151-285 mg.
B. Tabletted dosage form.
[0303] The tabletted dosage form is prepeared using the above mentioned ingredients:
| Compound of the present invention |
1-35 mg |
| Potato starch |
100 mg |
| polyvinyl pyrrolidone |
10 mg |
| Magnesium stearate |
2 mg |
| Lactose |
48-82 mg |
| Aerosyl |
5 mg |
[0304] The ingredents are stirred and pressed to produce tablets weighing 200 mg each.
B. Aerosolic dosage form.
[0305] The composition of aerosolic mixture is calculated per 10 administrations:
| Compound of the present invention |
10-40 mg |
| Magnesium sulphate |
150 mg |
| Lactose |
110-140 mg |
[0306] The compound is mixed with excipients and placed into a special device for spraying.
D. uppositoria.
[0307] The following bases can be used as suppositorial bases water-insoluble bases-cocoa
oil;
water-soluble bases or bases mixable with water - gelatine-glycerinic or polyethylene
oxide bases;
combined bases - soapy-glycerinic.
[0308] Example of a suppositorium composition:
| Compound of the present invention |
1-35 mg |
| Cocoa oil - |
amount needed to prepare a suppositorium. |
[0309] If needed, rectal, vaginal and urethral suppositoria with respective excipients can
be produced.
E. Ointments.
[0310] The following compounds can be used as an ointment base:
carbohydrate ointment bases - white and yellow vaseline (Vaselinum album, Vaselinum
flavum), vaseline oil (Oleum Vaselini) and white and yellow ointment (Unguentum album,
Unguentum flavum), and as supplements to confer a firmer consistence, hard paraffine
and wax can be used;
absorbtive ointment bases - hydrophylic vaseline (Vaselinum hydrophylicum), lanoline
(Lanolinum) and coldcreme (Unguentum leniens);
ointment bases washable with water- hydrophylic ointment (Unguentum hydrophylum);
water-soluble ointment bases - polyethylene glycol ointment (Unguentum Glycolis Polyaethyleni),
bentonite bases and others.
[0311] Example of an ointment composition:
| A compound of the present invention |
0.1-0.5 g |
| Vaseline |
10 g |
[0312] Ointments are produced according to the respective technology.
F. Solution for injections.
[0313] The following substances can be used as solvents to prepare a solution for injection
0.9% sodium chloride solution, distilled water, novocaine solution. Dosage forms:
ampules, vials, syringes-tubes, inserts.
[0314] Composition of solution for injections:
| A compound of the present invention- |
1-5 mg |
| Distilled water- |
1-2 ml |
[0315] The production of different dosage forms for injections is possible: sterile solutions,
sterile powders and tablets.
EXAMPLE 51
VERSIONS OF APPLYING THE COMPOUNDS OF THE PRESENT INVENTION AS COMPONENTS OF COSMETIC
AGENTS
A. Lotions.
[0316] Composition of a therapeutic-cosmetic lotion:
| A compound of the present invention |
0.1-1 g |
| Flavor- |
0.5-1.5 g |
| Ethyl alcohol 60°-70° - |
100-150 ml |
[0317] Lotions are produced according to conventional technology with pH parameters 5.5-6.0.
G. Creams.
[0318] Composition of a therapeutic-cosmetic cream:
| A compound of the present invention - |
0.1-1 g |
| Olive oil - |
8-10 g |
| Triethanol amine - |
1 g |
| Glycerine - |
3-5 g |
| Sodium benzoate - |
1-2 g |
| Flavor - |
1-1.5 g |
| Lanoline - |
20-25 g |
| Water - |
up to 100 g |
[0319] Creams are produced according to the respective technology.