Abstract: The present invention relates to a prodrug and application thereof for the treatment of hepatitis C virus in patients.

Abstract: The present invention relates to a prodrug and application thereof in the treatment of viral and cancerous diseases. Said prodrug inhibits HCV NS5B of HBV polymerase, DNA polymerase, and HIV-1 of reverse transcriptase (RT) and is used for the treatment of hepatitis B and C infection in mammals.

Abstract: The present invention relates to a prodrug and application thereof for the treatment of hepatitis C virus in patients.

Abstract: The present invention relates to chemotherapeutic agents for the treatment of viral and cancerous diseases. Said compounds are prodrugs of the inhibitors of human immunodeficiency virus (HIV) and hepatitis B virus (HBV) of DNA polymerase and are intended for the treatment of human immunodeficiency virus, hepatitis B and co-infections HIV/HCV, HIV/HBV, HIV/HCV/HBV, and HCV/HBV.

Abstract: Novel (R)-stereoisomers of substituted 2-thioxo-imidazolidin-4-ones of formula 1, or spiro analogues thereof, which exhibit androgen receptor antagonist properties. Also provided are variants of a method for producing the same, intermediate compounds for producing compounds of formula 1, and pharmaceutical compositions containing compounds of formula 1 in the form of tablets, capsules, and/or injections. Compounds of formula 1 can be used to produce a medicinal agent suitable for treating cancers, such as prostate cancer and breast cancer. The compounds of formula 1 may have the structure: wherein R1 is OH, NH2, or an OR4 group; R2 and R3 are methyl, or R2 and R3 are a CH2—CH2 group; and R4 is C1-C4 alkyl or cyclopropyl.

Abstract: The present invention relates to compound of the formula 1.2, or a pharmaceutically acceptable salt, or hydrate thereof wherein R1 is C1-C5 alkyl; R2, is independently hydrogen, halogen, C1-C3 alkyl, CF3, OCF3 or OCH3; i is 1, 2,3, or 4; Ar is unsubstituted phenyl or substituted phenyl substituted with halogen, C1-C6 alkyl, C1-C6 alkoxy, a substituted amino group or trifluoromethyl; or Ar is a substituted or unsubstituted 6-membered aromatic heterocycle one or, with two nitrogen atoms in the heterocycle; excluding the compounds of the formulas A1-A4 The invention relates to the novel chemical compounds, methods for their preparation and use as antagonists of 5-HT6 receptors, simultaneously regulating homeostasis of calcium ions in cells.

Abstract: Novel MEK1, MEK2 and MEK1/2 inhibitors which have lower toxicity in long-term dosage, including the novel compound N-{3-[3-cyclopropyl-5-(2-fluoro-4-iodophenylamino)-6, 8-dimethyl-2,4,7-trioxo-3,4,6, 7-tetrahydro-2H-pyrido[4,3-d]pyrimidin-1-yl]-phenyl}-cyclopropanecarboxamide dimethyl sulfoxide solvate according to formula 1:

Abstract: Nucleosides and nucleotides (nucleos(t)ides) have been in clinical use for almost 50 years and have become cornerstones of treatment for patients with viral infections or cancer. The approval of several additional drugs over the past decade demonstrates that this family still possesses strong potential. Therefore nucleos(t)ide are of great interest as promising chemotherapeutic agents, including: 2?-deoxy-L-uridine (CAS 31501-19-6), 2?-deoxy-D-uridine (CAS 951-78-0), telbivudine (CAS 3424-98-4), zidovudine (AZT, CAS 30516-87-1), trifluridine (CAS 70-00-8), clevudine (CAS 163252-36-6), PSI-6206 (CAS 863329-66-2), 2?-(S)-2?-chloro-2?-deoxy-2?-fluorouridine (CAS 1673560-41-2), ND06954 (CAS 114248-23-6), stavudine (CAS 3056-17-5), 5-ethynyltavudine (Festinavir, CAS 634907-30-5), torcitabine (CAS 40093-94-5), (?)-beta-D-(2R,4R)-dioxolane-thymine (DOT, 1-((2R,4R)-2-(hydroxymethyl)-1,3-dioxolan-4-yl)-5-methyl-2,4(1H,3H)-pyrimidinedione, CAS No.

Abstract: The present invention relates to an antiviral composition and a method for application thereof in the treatment of hepatitis C virus. Said antiviral composition comprises the HCV NS5B inhibitor of general formula 1, or a stereoisomer, an isotopically enriched analog, or crystalline or polycrystalline forms thereof.

Abstract: Novel (R)-stereoisomers of substituted 2-thioxo-imidazolidin-4-ones of formula 1, or spiro analogues thereof, which exhibit androgen receptor antagonist properties. Also provided are variants of a method for producing the same, intermediate compounds for producing compounds of formula 1, and pharmaceutical compositions containing compounds of formula 1 in the form of tablets, capsules, and/or injections. Compounds of formula 1 can be used to produce a medicinal agent suitable for treating cancers, such as prostate cancer and breast cancer. The compounds of formula 1 may have the structure: wherein R1 is OH, NH2, or an OR4 group; R2 and R3 are methyl, or R2 and R3 are a CH2—CH2 group; and R4 is C1-C4 alkyl or cyclopropyl.

Abstract: Nucleosides and nucleotides (nucleos(t)ides) have been in clinical use for almost 50 years and have become cornerstones of treatment for patients with viral infections or cancer. The approval of several additional drugs over the past decade demonstrates that this family still possesses strong potential. Therefore nucleos(t)ide are of great interest as promising chemotherapeutic agents, including: 2?-deoxy-L-uridine (CAS No 31501-19-6), 2?-deoxy-D-uridine (CAS No 951-78-0), telbivudine (CAS No 3424-98-4), zidovudine (AZT, CAS No 30516-87-1), trifluridine (CAS No 70-00-8), clevudine (CAS No 163252-36-6), PSI-6206 (CAS No 863329-66-2), 2?-(5)-2?-chloro-2?-deoxy-2?-fluorouridine (CAS No 1673560-41-2), ND06954 (CAS No 114248-23-6), stavudine (CAS No 3056-17-5), 5-ethynyltavudine (Festinavir, CAS No 634907-30-5), torcitabine (CAS No 40093-94-5), (?)-beta-D-(2R,4R)-dioxolane-thymine (DOT, 1-((2R,4R)-2-(hydroxymethyl)-1,3-dioxolan-4-yl)-5-methyl-2,4 (1H,3H)-pyrimidinedione, CAS No.

Abstract: The present invention pertains to chemotherapeutic agents and their use for treating viral and cancerous diseases. These compounds are inhibitors of HCV NS5B polymerase, HBV DNA polymerase and, HIV-1 reverse transcriptase (RT) inhibitor, and for treatment of hepatitis B and C infection in mammals. These compounds are also of interest for the treatment of cancer.

Abstract: Compound represented by formula 1: or a pharmaceutically acceptable salt, a hydrate, a crystalline form, or a stereoisomer thereof, wherein: R1 is hydrogen, tert-butoxycarbonyl, where R11 is an optionally substituted C1-C6 alkyl, an optionally substituted C3-C6 cycloalkyl, or an optionally substituted C1-C6 alkyloxy, and arrows (?) indicate the position of substituents attachment; R2 is hydrogen, halogen, or C1-C4alkyl; R3 is an optionally substituted aryl, an optionally substituted aryloxy, an optionally substituted arylsulfanyl, an optionally substituted arylamino, or an optionally substituted nitrogen hetaryl; where R41 is an optionally substituted C1-C6 alkyl, an optionally substituted C3-C6 cycloalkyl, or an optionally substituted C1-C6 alkyloxy; X is buta-1,3-diynylene or 1,4-phenylene; arrows (?) indicate the position of substituents attachment.

Abstract: The present invention relates to a method of antagonizing a 5-HT6 serotonin receptor, comprising administering to the cell a compound of formula 1.2, or a pharmaceutically acceptable salt thereof, wherein: R1 is a C1-C5 alkyl; R2i is independently hydrogen, halogen, a C1-C3 alkyl, CF3, OCF3 or OCH3; i is 1, 2, 3 or 4; Ar is an unsubstituted phenyl or a substituted phenyl substituted with halogen, C1-C6 alkyl, C1-C6 alkoxy, substituted amino group or trifluoromethyl; or Ar is a substituted or unsubstituted 6-membered aromatic heterocycle with one or two nitrogen atoms in the heterocycle. The invention also relates to pharmaceutical compositions and method for treating a cognitive disorder or neurodegenerative disease in a subject in need thereof comprising administering an effective dose to the subject of a compound of formula 1.2 according to claim 1, or a pharmaceutically acceptable salt thereof.

Abstract: Compound represented by formula 1: or a pharmaceutically acceptable salt, a hydrate, a crystalline form, or a stereoisomer thereof, wherein: R1 is hydrogen, tert-butoxycarbonyl, where R11 is an optionally substituted C1-C6 alkyl, an optionally substituted C3-C6 cycloalkyl, or an optionally substituted C1-C6 alkyloxy, and arrows (?) indicate the position of substituents attachment; R2 is hydrogen, halogen, or C1-C4alkyl; R3 is an optionally substituted aryl, an optionally substituted aryloxy, an optionally substituted arylsulfanyl, an optionally substituted arylamino, or an optionally substituted nitrogen hetaryl; where R41 is an optionally substituted C1-C6 alkyl, an optionally substituted C3-C6 cycloalkyl, or an optionally substituted C1-C6 alkyloxy; X is buta-1,3-diynylene or 1,4-phenylene; arrows (?) indicate the position of substituents attachment.

Abstract: The present invention relates to a method of antagonizing a 5-HT6 serotonin receptor, comprising administering to the cell a compound of formula 1.2, or a pharmaceutically acceptable salt thereof, wherein: R1 is a C1-C5 alkyl; R2i is independently hydrogen, halogen, a C1-C3 alkyl, CF3, OCF3 or OCH3; i is 1, 2, 3 or 4; Ar is an unsubstituted phenyl or a substituted phenyl substituted with halogen, C1-C6 alkyl, C1-C6 alkoxy, substituted amino group or trifluoromethyl; or Ar is a substituted or unsubstituted 6-membered aromatic heterocycle with one or two nitrogen atoms in the heterocycle. The invention also relates to pharmaceutical compositions and method for treating a cognitive disorder or neurodegenerative disease in a subject in need thereof comprising administering an effective dose to the subject of a compound of formula 1.2 according to claim 1, or a pharmaceutically acceptable salt thereof.

Abstract: The present invention relates to novel antiviral active 5-{4-[1H-imidazol-5-ylaryl(or hetaryl)]-buta-1,3-diynyl}-1H-imidazoles of the general formula 1 and pharmaceutically acceptable salt thereof, pharmaceutical composition, antiviral medicament, therapeutic kit for prophylaxis and treatment of hepatisis C virus diseases, and method for prophylaxis and treatment of hepatisis C. wherein: R1 and R2—represent optionally identical radicals selected from 2.1 and 2.2, where an asterisk (*) denotes the position of attachment to the imidazole fragment, (S) and (R) are types of chiral centers; R3 is isopropyl or phenyl radicals; Ar an aromatic or heteroaromatic diradical.

Abstract: The invention relates to pharmacology and medicine, more particularly to novel pharmaceutical compositions and pharmaceutical kits for treating bacterial infections, and to novel method for treating diseases caused by bacterial infections including tuberculosis. The pharmaceutical composition is disclosed comprising Rifamycin and interferon inducer in pharmacologically effective doses, and also pharmaceutical kit for treating diseases caused by bacterial and healthcare acquired infections, comprising pharmacologically effective doses of Rifamycin in the form of a tablet, a capsule or an injection, interferon inducer in the form of a tablet, a capsule or an injection, and instruction for administration of the components of this pharmaceutical kit.

Abstract: The invention relates to the field of pharmaceutics, in particular, to solid pharmaceutical composition comprising 2-amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol or pharmaceutically acceptable salt thereof, stabilizer, lubricant and filler; to method for preparation of pharmaceutical composition, to medicaments for immune suppression and treating multiple sclerosis. 2-Amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol represents an immune modulator, which causes redistribution of lymphocytes from blood flow into secondary lymphoid tissue that leads to immune suppression. The invention provides uniform distribution of the active ingredient in the solid composition, high stability and improved flowability of the solid pharmaceutical composition. Due to the improved flowability the compositions suggested in the invention can be used on automated equipment.

Abstract: Compounds of the general formula 1, stereoisomers, pharmaceutically acceptable salts, and/or hydrates, solvates or crystalline forms thereof wherein R1 represents C1-C4 alkyl; R2 and R3 represents fluoro, or R2 represents fluoro, and R3 represents methyl; R4 and R5 represents hydrogen, or R4 represents C1-C6 acyl, and R5 represents hydrogen, or R4 represents hydrogen, and R5 represents C1-C6 acyl, or R4 represents optionally substituted ?-aminoacyl, and R5 represents hydrogen, or R4 represents hydrogen, and R5 represents optionally substituted ?-aminoacyl; R6 represents hydrogen, methyl, methoxy or halogen.