Purine derivatives applicable as adenosine receptor a2a agonists

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to new purine derivatives of formula (I) and to their pharmaceutically acceptable salts exhibiting the properties of adenosine receptor A2A agonists. The compounds can find application for preparing a drug for treating an inflammatory or obstructive respiratory disease. In formula

,

R1, R2 and R3 are those as specified in the patent claim.

EFFECT: preparing new purine derivatives of formula (I) or their pharmaceutically acceptable salts showing the properties of adenosine receptor A2A agonists.

8 cl, 2 tbl, 264 ex

 

The text descriptions are given in facsimile form.

1. The compound of formula (I) or its pharmaceutically acceptable salt
,
where R1, R2and R3denote

107 154td align="left"> td align="left"> td align="left"> td align="left"> 223td align="left"> td align="left"> td align="left">
Etc.R1R2R3
1
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29H-
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44-H
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168-H
169-Cl
170-H
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174-H
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2. The compound according to claim 1, which is a methyl ester of ((1S,2R,3S,4R)-4-{6-(2,2-diphenylethylamine)-2-[(R)-3-(3-pyridin-3-yureina)pyrrolidin-1-yl]purine-9-yl}-2,3-dihydrocyclopenta)carbamino acid formula
,
or its pharmaceutically acceptable salt.

3. The compound according to claim 1, which is a methyl ester of ((1S,2R,3S,4R)-4-{6-(2,2-diphenylethylamine)-2-[(R)-3-((R)-3-pyrrolidin-3-yureina)pyrrolidin-1-yl]purine-9-yl}-2,3-dihydrocyclopenta)carbamino acid formula

or its pharmaceutically acceptable salt.

4. The compound according to claim 1, which is N-((1S,2R,3S,4R)-4-{6-(2,2-diphenylethylamine)-2-[(R)-3-(3-phenylurea)pyrrolidin-1-yl]purine-9-yl}-2,3-dihydrocyclopenta)-propionamide formula

or its pharmaceutically acceptable salt.

5. The compound according to claim 1, which is N-[(1S,2R,3S,4R)-4-(6-(2,2-diphenylethylamine)-2-{(R)-3-[3-(3-hydroxyphenyl)ureido] pyrrolidin-1-yl} - purine-9-yl)-2,3-dihydroxy-cyclopentyl]propionamide formula

or its pharmaceutically acceptable salt.

6. The compound according to any one of claims 1 to 5, or its pharmaceutically acceptable salt for the change as pharmaceuticals, having agonistic activity against adenosine receptor And2A.

7. Pharmaceutical composition having agonistic activity against adenosine receptor And2Acomprising as active ingredient the compound according to any one of claims 1 to 5, or its pharmaceutically acceptable salt together with a pharmaceutically acceptable diluent or carrier.

8. The use of compounds according to any one of claims 1 to 5, or its pharmaceutically acceptable salts for preparing a medicinal product intended for the treatment of inflammatory or obstructive diseases of the respiratory tract.



 

Same patents:

FIELD: chemistry.

SUBSTANCE: present invention relates to methods for large-scale production of a A2A_adenosine receptor agonist, particularly a monohydrate of (1-{9-[(4S,2R,3R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-aminopurin-2-yl}pyrazol-4-yl)-N-methylcarboxamide: . The invention also discloses methods of producing intermediate products used to produce said monohydrate, and directly the monohydrate of (1-{9-[(4S,2R,3R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-aminopurin-2-yl}pyrazol-4-yl)-N-methylcarboxamide.

EFFECT: novel methods of producing 1-{9-[(4S,2R,3R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-aminopurin-2-yl}pyrazol-4-yl)-N-methylcarboxamide, which enable to obtain large amounts of the end product with good output and high degree of purity.

15 cl, 6 ex, 5 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing a monohydrate of (1-{9-[(4S,2R,3R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-6-aminopurin-2-yl}pyrazol-4-yl)-N-methylcarboxamide through contact of a compound of formula

with aqueous methylamine at temperature equal to approximately 2.5-7.5°C. The invention also relates to a method of producing an intermediate compound of formula (4): involving reaction of a compound of formula (1) with 14.3-16.7-fold molar excess hydrazine hydrate at temperature equal to approximately 60-65°C to obtain the corresponding hydrazine of formula (2), followed by contact between the compound of formula (2) and excess ethyl-2-formyl-3-oxopropionate, optionally in the presence of an acid.

EFFECT: method enables to obtain, in a single step, a crystalline compound in form of a monohydrate and also exclude undesirable impurities of the compound of formula 2 in the end product owing to use of intermediate product 4.

15 cl, 7 ex, 5 dwg

FIELD: chemistry.

SUBSTANCE: nucleic base (e.g. uracil, cytosine, adenine, guanine, hypoxanthine, xanthine or similar) reacts with perfluoroalkyl halide in the presence of sulphoxide, peroxide and an iron compound to obtain a perfluoroalkyl-substituted nucleic base.

EFFECT: high cost effectiveness as an intermediate compound for producing medicinal agents.

15 cl, 6 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to phosphoramidite derivatives of general formula where Bx denotes adenine, guanine, cytosine, thymine or uracil, where the amine group of adenine, guanine and cytosine can be optionally protected by a protective group selected from acetyl and phenoxyacetyl; R1 is a substitute of general formula in which R11, R12 and R13 are identical or different, and each denotes hydrogen or alkoxy; R2a and R2b are identical or different, and each denotes alkyl; and WG1, WG2 denote a cyano group. The invention also pertains to a multistep method of producing the said compounds. The invention also relates to intermediate compounds of the said method, namely: an intermediate ether compound of general formula where L is a halogen or a C1-C5alkylthio group; WG1 is a cyano group; an intermediate compound of general formula where Bx denotes adenine, guanine, cytosine, thymine or uracil, where the amine group of adesine, guanine and cytosine can be optionally protected by a protective group selected from an acetyl group and a phenoxyacetyl group; and WG1 denotes a cyano group; an intermediate compound of general formula where Bx is as described above; R1 is a substitute of general formula (2); an intermediate compound of general formula where Bx is as described above; A is a silicon-containing substitute of general formula or where R6 denotes alkyl and WG1 denotes a cyano group. The invention also relates to a method of producing an oligonucleotide of general formula where each B independently denotes adenine, guanine, cytosine, uracil or thymine; each R independently denotes H or hydroxyl and at least one of R denotes hydroxyl; Z denotes H or a phosphate group; and n is an integer between 1 and 100, involving steps A-G, characterised by use of said phosphoramidite derivatives as a monomer compound of nucleic acid at step B.

EFFECT: high yield.

7 cl, 1 dwg, 21 ex

FIELD: chemistry.

SUBSTANCE: in compound of formula (I): , R1 represents C1-4-alkoxy C3-6cycloalkyl optionally substituted with atom of halogen, hydroxyl, trifluoromethyl, optionally substituted with halogen atom 5-6-member heterocyclyl, in which heteroatoms are selected from oxygen, optionally substituted with halogen atoms phenyl or optionally substituted with halogen atoms 5-6-member heteroaryl, in which heteroatoms are selected from nitrogen and/or sulfur; R2 represents hydrogen or trifluoromethyl; R3 represents hydrogen, optionally substituted with atom of halogen, C3-6cycloalkyl, optionally substituted with atom of halogen, trifluoromethyl, C1-4-alkyl phenyl, optionally substituted with atom of halogen, trifluoromethyl, C1-4-alkoxy heterocyclyl, which has in ring 1-2 heteroatoms, selected from nitrogen, oxygen or sulfur, or optionally substituted with C1-4-alkyl 5-6-member heterocyclyl, which has in ring 1-2 heteroatoms, selected from nitrogen or oxygen, R4 and R5 independently represent hydrogen; X represents covalent bond or lower alkylene; X1 represents covalent bond or lower alkylene, Y represents covalent bond or lower alkylene, optionally substituted with hydroxy or cycloalkyl; and Z represents -C=C-, -R6C=CR7- or -CHR6CHR7-, where R6 and R7 in each position represent hydrogen or lower alkyl.

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30 cl, 7 dwg, 31 ex

FIELD: chemistry.

SUBSTANCE: invention pertains to the method of obtaining 2-amino-6-azido-9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)purine and can be used in organic chemistry and pharmaceutical industry. The method lies in that, 2-amino-6-azido-9-(2,3,5-tri-O-acetyl-β-D-ribofuranosyl)purine and sodium azide interact in the presence of the above mentioned tetrametylammonium chloride boiled for 4 hours in absolute acetonitrile. The obtained compound is cleaned by elution of benzol. The residue is dissolved in chloroform and the desired product is separated during precipitation using hexane.

EFFECT: high degree of purity with high output.

1 ex

FIELD: chemistry.

SUBSTANCE: method implies that suspension 2-amino-6-azido-9-(2,3,5-tri-O-acetyl-β-D-ribofuranozile)purine in 60% anhydrous hydrogen fluoride solution of pyridine is diazotizied with tert-butylnitrite during 1 hour at (-18) - (-22)°C. Reaction mixture is decomposed with cut ice. Reaction product is purified by, flash-chromatography on aluminum oxide. Then produced 2-fluorine-6-azido-9-(2,3,5-tri-O-acetyl-β-D-ribofuranozile)purine is hydrogenated at air pressure in 10% acetic acid solution of absolute ethyl acetate with 10% palladium on carbon solution occurrence during 18 hours. Reaction product is purified in acetonitrile solution by flash-chromatography on aluminum oxide at 50-55°C and crystallized from alcohol.

EFFECT: production of compound of high purity with high output.

2 ex

FIELD: chemistry.

SUBSTANCE: invention applied for relates to process of obtaining 2,6- dichlor-9-(2,3,5-tru-O-acetyl-β-D-ribofuranozyl) purine and may be used in organic chemistry and pharmaceutical industry. The process involves conduction of 2,6- dichlor-9-(2,3,5-tru-O-acetyl-β-D-ribofuranozyl) purine with tret-butyl nitrite in the methylene chloride medium at (-18)-(-22)°C during 2 hours in presence of pyridine hydrochloride and phosphorus oxychloride followed by decomposing the reaction mixture with chipped ice, and cleansing of the target product in methylene chloride with flash-chromatography on silica gel.

EFFECT: obtaining of substance with high grade of purity and high output by simplified technology.

1 ex

FIELD: chemistry.

SUBSTANCE: this invention covers method of production of 2-chloroadenosine and may be used in organic chemistry and pharmaceutical industry. The method includes ammonolysis of 2.6-di-chloro-9-(2,3,5-tri-O-acetyl-(β-O-ribofuranozyl)purine in absolute ethyl acetate saturated with ammonia at 0°C during 3 days with further hydrolysis of obtained 5'-0-acetyl-2-chloro-adenosine with 20% ammonia solution in methanol at 20°C during 6 hours, isolation of desired product from the reaction mixture by boiling in mixture of chloroform and methanol, their volumetric ratio 3:1, and purification by crystallization from water.

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1 ex

FIELD: organic chemistry, medicine.

SUBSTANCE: invention relates to compound of the formula (I) wherein each among R represents independently hydrogen atom, (C1-C6)-alkyl, (C3-C7)-cycloalkyl, phenyl or phenyl-(C1-C3)-alkyl; X and X' represent -CH2OH, -CO2R2, -OC(O)R2, -CH2OC(O)R2 or C(O)NR3R4 wherein R2, R3 and R4 represent independently hydrogen atom (H), (C1-C6)-alkyl substituted optionally with one-three (C1-C6)-alkoxy-groups, (C1-C6)-alkylthio-groups, halogen atoms, hydroxy-, amino-, mono-(C1-C6)-alkyl)-amino-, di-(C1-C6)-alkyl)-amino-group; Z and Z' represent independently (C1-C6)-alkyl broken optionally with one-three sulfur atoms (S) or non-peroxide oxygen atom (O), or they absent; n = 1-3; or to its pharmaceutically acceptable salt. Compounds are agonists of adenosine A2A-receptors and can be used for inhibition of inflammatory response or inflammation treatment.

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56 cl, 1 tbl, 21 dwg, 37 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: present invention refers to new compounds of formula I or their pharmaceutically acceptable salts showing an ability to inhibit sphingosine kinase, to a based pharmaceutical composition, to a method of inhibiting sphingosine kinase and a method of treating diseases specified in breast cancer, diabetic retinopathy, arthritis and colitis. , wherein X represents -C(R3,R4)N(R5)-, -C(O)N(R4)-; R1 represents phenyl unsubstituted or substituted by 1 or 2 halogens. The values of R2, R3, R4, R5 substitutes are such as specified in the patent claim.

EFFECT: preparation of new compounds.

17 cl, 24 dwg, 9 tbl, 26 ex

FIELD: chemistry.

SUBSTANCE: nucleic base (e.g. uracil, cytosine, adenine, guanine, hypoxanthine, xanthine or similar) reacts with perfluoroalkyl halide in the presence of sulphoxide, peroxide and an iron compound to obtain a perfluoroalkyl-substituted nucleic base.

EFFECT: high cost effectiveness as an intermediate compound for producing medicinal agents.

15 cl, 6 tbl

Chemical compounds // 2405780

FIELD: medicine, pharmaceutics.

SUBSTANCE: present invention refers to new compounds of formula (I): , in which: R1 and R2 are independently specified from hydrogen, C1-6alkyl, C1-6alkoxy and cyclopropyl; X1, X2 and X3 independently represent =N- or =CR10; R3 and R10 are independently specified from hydrogen, halogen, nitro, cyano, amino, carboxy, carbamoyl, C1-6alkyl, N-(C1-6alkyl)amino, N,N(C1-6alkyl)2amino, C1-6alkanoylamino, C1-6alkoxycarbonyl; R4 represents hydrogen; R5 and R6 are independently specified from hydrogen, hydroxy and C1-6alkyl where R5 and R6 independently can be optionally substituted in carbon atom with one or more R16 where R16 represents hydroxy; A represents a single link or C1-2alkylene; where specified C1-2alkylene can be optionally substituted with one or more R18; the ring C represents a saturated, partially saturated or unsaturated mono- or bicyclic ring containing 5 or 6 atoms in which at least one atom can be specified from nitrogen, sulphur or oxygen which can be linked with carbon or nitrogen atom where the -CH2- group can be optionally substituted with -C(O)- and ring sulphur atom can be optionally oxidised to produce S-oxide; R7 is specified from halogen and C1-6alkyl where R7 can be optionally substituted in carbon atom with halogen; n is equal to 0.1 or 2; where R7 values can be equal or different; and R18 is independently specified from halogen and hydroxy; or its pharmaceutically acceptable salt. Also the invention refers to their pharmaceutical compositions and methods for preparation and application thereof for cancer treatment.

EFFECT: preparation of new compounds which can find application for cancer treatment.

23 cl, 96 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to novel compounds of formula I in free form or in form of pharmaceutically acceptable salt, which possess properties of adenosine receptor A2A agonists. In formula I , R1 represents (C1-C8)alkylcarbonyl, (C3-C8)cycloalkylcarbonyl, -SO2(C1-C8)alkyl, phenyl(C1-C4)alkylcarbonyl or -(C=O)-C(=O)-NH(C1-C8)alkyl, optionally substituted with R4; R2 represents H or (C1-C8)alkyl, optionally substituted with (C6-C10)aryl; R3 represents halogen or(C2-C8)alkinyl, or R3 stands for aminogroup, optionally substituted with (C3-C8)cycloalkyl, optionally substituted with amino, or R3 represents (C1-C8)alkylaminogroup, optionally substituted with hydroxy, phenyl or R5, or R3 stands for R6, optionally substituted with amino or -NH-C(=O)-NH-R7, or R3 stands for -NH-R6, optionally substituted with -NH-C(=O)-NH-R7, or R3 stands for (C1-C8)alkylaminocarbonyl, optionally substituted with. -NH-C(=O)-NH-R8; R4, R5 and R6 represent independently 5- or 6-member heterocyclic ring, which contains one-two N ring heteroatoms, optionally substituted with amino or (C1-C8)alkyl; and R7 and R8 represent independently 5- or 6-member heterocyclic ring, which contains one-two ring heteroatoms selected from N and S, and is optionally substitutedf with halogen, (C1-C8)alkylsulfonyl or 5- or 6-member aromatic heterocyclic ring, which contains one N ring heteroatom. Invention also relates to pharmaceutical composition and to application of said compounds for treatment of states, mediated by activation of adenosine receptor A2A.

EFFECT: obtaining composition, which possesses properties of adenosine receptor A2A agonists.

10 cl, 3 tbl, 80 ex

FIELD: chemistry.

SUBSTANCE: invention relates to novel purine derivatives of general formula I in free form or in form of a pharmaceutically acceptable salt which have A2A agonist properties. In formula I , R1 denotes a N-bonded 5-6-member heterocyclic group containing 1-4 nitrogen atoms in the ring, which can be optionally substituted with oxo, phenyl or C1-8-alkyl, optionally substituted with hydroxy; R2 is hydrogen or C1-C8-alkyl, optionally substituted with hydroxy or 1-2 phenyls possibly substituted with hydroxy or C1-C8-alkoxy; R3 is C2-C8-alkynyl or C1-C8-alkoxycarbonyl, or R3 is amino substituted with C3-C8-cycloalkyl, optionally substituted with amino, hydroxy, benzyloxy or NH-C(=O)-NH-R6, or R3 is amino substituted with R4, -R4-benzyl or C5-C10-mono- or bicarbocyclic group, optionally substituted with hydroxy or C1-C8-alkoxycarbonyl, or R3 is aminocarbonyl optionally substituted with R5, or R3 is C1-C8-alkylamino optionally substituted with hydroxy, R5, NH-C(=O)-C1-C8-alkyl, -MH-SO2-C1-C8-alkyl, -NH-C(=O)-NH-R6 or phenyl, optionally substituted with phenyloxy, or R3 is a N-bonded 5-member heterocyclic group containing 1 nitrogen atom in the ring which may optionally be substituted with amino, C1-C8-alkylamino, di(C1-C8-alkyl)amino and other groups.

EFFECT: compounds can be useful in treating conditions mediated by activation of the adenosine A2A receptor, especially inflammatory or obstructive respiratory tract diseases.

9 cl, 5 tbl, 161 ex

FIELD: chemistry.

SUBSTANCE: in compounds of formula (I) , Q is: (IIa) or (IIb) , R1 is chosen from a group which consists of carboxylic aryl and carboxylic aryl which is substituted with substitute(s) independently chosen from a group which consists of halogen, cyano, nitro, C1-10alkyl, C1-10alkyl which is substituted with substitute(s) independently chosen from a group which consists of halogen, C1-9alkoxy, C1-9alkoxy which is substituted with substitute(s) independently chosen from a group which consists of halogen, mono-C1-5alkylamino, and heterocyclyl or heterocyclyl which is substituted with substitute(s) independently chosen from a group which consists of halogen, C1-5alkyl; R2 is C1-5alkyl, C1-5alkyl which is substituted with halogen, C1-5alkyl which is substituted with carboxylic aryl, C1-5alkoxy, -N(R2a)(R2b); where R2a and R2b are each independently hydrogen, C1-5alkyl or C1-5alkyl, substituted with substitute(s) independently chosen from a group which consists of hydroxyl, carboxylic aryl; L represents formula (IIIa); , where R3 and R4 are each hydrogen; A is a single bond, and B is a single bond or -CH2-; Z1, Z3, and Z4 are each independently hydrogen, halogen, C1-5alkyl, C1-5alkyl, substituted with carboxylic aryl, C1-5alkoxy, mono-C1-5alkylamino, di-C1-5alkylamino, carboxylic aryl, heterocyclyl or substituted heterocyclyl; Z2 is hydrogen, C1-5alkyl, C1-5alkyl which is substituted with carboxylic aryl, C1-5alkoxy, mono-C1-5alkylamino, di-C1-5alkylamino, carboxylic aryl, heterocyclyl or substituted heterocyclyl; Y is -C(O)NH-, -C(O)-, -C(S)NH-, -C(O)O- or -CH2-; where carboxylic aryl is phenyl; heterocyclyl is 1H-indolyl, 9H- xanthenyl, benzo[1,3]dioxolyl, furyl, imidazolyl, isoxazolyl, morpholinyl, piperazinyl, pyridyl, pyrrolidyl; halogen is fluorine, chlorine, bromine or iodine. The invention also relates to a pharmaceutical composition.

EFFECT: compounds can be used for treating central nervous system diseases, and for improving memory functioning, sleep, awakening, diabetes.

16 cl, 8 dwg, 4 tbl, 525 ex

Comt inhibitors // 2354655

FIELD: chemistry.

SUBSTANCE: invention refers to new compounds of formula I where R1 stands for H, CN, halogen, -COR2, -S(O)xR2, C1-C12alkyl, C2-C12alkenyl, C3-C8dicloalkyl, aryl group, heteroaryl group standing for 5- or 6-merous aromatic mono- or bicyclic heterocyclic group with 1-2 heteroatoms, chosen of N or S, C3-C8cycloalkyl-(C1-C3)alkyl or group aril-(C1-C3)alkyl; alkyl, alkenyl, cycloalkyl, aryl and heteroaryl groups can be optionally substituted with halogen, C1-C6alkyl, group-COR2; R2 stands for -N(R3,R3'), C1-C6alkyl, C3-C8cycloalkyl, aryl, heteroaryl which stands for 5- or 6-merous aromatic mono- or bicyclic heterocyclic group with 1-2 heteroatoms chosen of N, C3-C8cycloalkyl-(C1-C3) alkyl or aril-(C1-C3)alkyl; C1-C6alkyl, C3-C8cycloalkyl, aryl, heteroaryl can be optionally substituted with halogen, C1-C6alkyl; R3 and R3' independently stands for hydrogen or (C1-C3)alkyl; x stands for 0, 1 or 2; and also to their esters, hydrolyzed in physiological environment, and to their pharmaceutically acceptable salts. The invention also concerns a medical product.

EFFECT: production of new biologically active compounds active as COMT inhibitor.

17 cl, 19 ex, 1 tbl

FIELD: synthesis of biologically active compounds.

SUBSTANCE: invention provides novel N6-substituted adenine-based heterocyclic compounds depicted by general formula I: , for which meanings of radicals are presented in description, and pharmaceutically acceptable salts thereof manifesting anticancer, mitotic, immunosuppressive, and antiaging activities for vegetable, animal, and human cells, and methods for preparation thereof. Included are also pharmaceutical compositions, cosmetic preparations, and growth regulators, which contain indicated derivatives as active components. Application of indicated derivatives for preparing therapeutical preparations, and cosmetic preparations are also described.

EFFECT: expanded synthetic possibilities in adenine series and increased choice of various biologically active agents.

10 cl, 10 dwg, 9 tbl, 14 ex

FIELD: organic chemistry, medicine, pharmacy.

SUBSTANCE: invention relates to derivatives of piperidine of the general formula (I): or their pharmaceutically acceptable salts wherein rings A and B represent optionally substituted benzene rings; R1 represents alkyl, hydroxyl, thiol, carbonyl, sulfinyl, unsubstituted or substituted sulfonyl group and others; R2 represents hydrogen atom, hydroxyl, amino-group, alkyl, unsubstituted or substituted carbonyl group or halogen atom; Z represents oxygen atom or group -N(R3)- wherein R3 and R4 represent hydrogen atom or alkyl group under condition that N-acetyl-1-benzyloxycarbonyl-2-phenyl-4-piperidineamine is excluded. Compounds of the formula (I) or their salts possess antagonistic activity with respect to tachykinin NK1-receptors and can be used in medicine in treatment and prophylaxis of inflammatory, allergic diseases, pain, migraine, diseases of central nervous system, digestive organs and others.

EFFECT: valuable medicinal properties of compounds and pharmaceutical composition, improved method of treatment.

18 cl, 138 tbl, 527 ex

The invention relates to the derivatives of purine, which has antiviral activity against human cytomegalovirus and human immunodeficiency virus type 1, of General formula:

where n = 0 to 4; m = 0 to 3; R1= N, HE or NH2; R2= HE, NH2, acetylamino or benzoylamine; R3= H or lower alkyl (C1-C4; R4= H, lower alkyl (C1-C4or phenyl; X = CH2, O, S, NH or C(O)O; and Y = CH2, CH=CH, C(O), or ordinary communication; Ar = phenyl, pyridyl, naphthyl or substituted phenyl of the formula

where independently R5-R9= alkyl1-C8cycloalkyl C5-C6, 1-substituted, allyl, phenyl, benzyl, F, Cl, Br, J, trifluoromethyl, alkoxy, C1-C5phenoxy, benzyloxy, benzoyloxy, cyano, carboxy, acetyl, or nitro, antiviral effect of the most active compounds against human cytomegalovirus in vitro manifests itself in concentrations of 0.01-0,0005M and is characterized by selectivity 1-400 thousand

FIELD: chemistry.

SUBSTANCE: nucleic base (e.g. uracil, cytosine, adenine, guanine, hypoxanthine, xanthine or similar) reacts with perfluoroalkyl halide in the presence of sulphoxide, peroxide and an iron compound to obtain a perfluoroalkyl-substituted nucleic base.

EFFECT: high cost effectiveness as an intermediate compound for producing medicinal agents.

15 cl, 6 tbl

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