SULFUR-CONTAINING HETEROCYCLIC COMPOUNDS OR PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF Russian patent published in 1995 - IPC

FIELD: organic chemistry. SUBSTANCE: the product: sulfur- containing heterocyclic compounds of the formula: wherein A is a benzene ring and may be substituted by 1 or 2 substituents selected from the group consisting of halogen, alkyl, alkoxyl or cycloalkyl; R is hydrogen, alkyl or phenyl; B is carboxyl alkoxycarbonyl or an unsubstituted or substituted amido group; X is hydroxyalkyl or carbonyl; K is 0-1 or 0-2, or salts thereof, are prepared by cyclization of the corresponding benzene A derivative followed optionally by oxidation and/or hydrolysis followed by amidation or hydrolysis followed by amidation and oxidation and optionally by reduction. EFFECT: improved properties of the title compounds. 3 cl, 19 tbl