HETEROCYCLIC COMPOUNDS OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF AND INTERMEDIATE COMPOUNDS Russian patent published in 2001 - IPC

FIELD: medicine. SUBSTANCE: described are new heterocyclic compounds of formula I: wherein R¹ is carboxy or lower alkoxycarbonyl: R² is phenyl or lower alkylphenyl; R³ is phenyl or lower alkylphenyl; A¹ is lower alkylene; A² is chemical bond or lower alkylene and Q is as defined in claims, or pharmaceutically acceptable salts thereof. Also described are intermediate compounds of formula II: wherein R²,R³,A²,-Q- are as defined above; R⁴ is hydrogen or lower alkyl, or salts thereof. Invention is useful for preparing medicinals having inhibiting activity with respect to aggregation of thrombicytes and vasolidating activity. EFFECT: improved properties of the title compounds. 7 cl, 28 ex, 2 tbl