SUBSTITUTED ESTERS OF 1,2,3,7-TETRAHYDROPYRROLO[3,2-f][1,3]BENZOXAZIN-5-CARBOXYLIC ACIDS, PHARMACEUTICAL COMPOSITION, METHOD FOR THEIR PREPARING (VARIANTS) AND USING Russian patent published in 2008 - IPC C07D498/04 A61K31/5365 A61P31/12 A61P31/16 

FIELD: organic chemistry, medicine, pharmacy, chemical technology.

SUBSTANCE: invention relates to novel substituted esters of 1,2,3,7-tetrahydropyrrolo[3,2-f][1,3]benzoxazin-5-carboxylic acids of the general formula (1): or their racemates, or their optical isomers, or their pharmaceutically acceptable salts and/or hydrates possessing the antiviral effect. In compounds of the general formula (1) each R¹ and R⁴ represents independently of one another a substitutes of amino group chosen from hydrogen atom, optionally substituted linear or branched alkyl comprising 1-4 carbon atoms, optionally substituted cycloalkyl comprising 3-10 carbon atoms, optionally substituted aryl or optionally substituted and possibly an annelated heterocyclyl that can be aromatic or nonaromatic and comprising from 3 to 10 atoms in ring with one or some heteroatoms chosen from nitrogen, oxygen or sulfur atoms or their oxides; R² represents alkyl substitute chosen from hydrogen atom, optionally substituted mercapto group, optionally substituted amino group, optionally substituted hydroxyl; R³ represents lower alkyl or cycloalkyl; R⁵ represents a substitute of cyclic system chosen from hydrogen atom, optionally substituted linear or branched alkyl comprising 3-12 carbon atoms, optionally substituted cycloalkyl comprising 3-10 carbon atoms, optionally substituted aryl or optionally substituted and optionally an annelated heterocyclyl that can be aromatic or nonaromatic and comprising from 3 to 10 atoms in ring with one or some heteroatoms chosen from nitrogen, oxygen or sulfur atoms or their oxides; R⁶ represents a substitute of cyclic system chosen from hydrogen atom, halogen atom, cyano group, optionally substituted aryl or optionally substituted and optionally annelated heterocyclyl that can be aromatic or nonaromatic and comprising from 3 to 10 atoms in ring with one or some heteroatoms chosen from nitrogen, oxygen or sulfur atoms or their oxides. Also, invention relates to methods for treatment, drugs and pharmaceutical compositions using compounds of this invention. Proposed compounds can be used as active components of drugs used in treatment of such diseases as infectious hepatitis, human immunodeficiency, atypical pneumonia and avian influenza.

EFFECT: valuable medicinal properties of compounds and pharmaceutical composition, improved methods of synthesis.

22 cl, 3 tbl, 6 dwg, 7 ex