Piperidino 3,4 jihidorokarubosuchiriru derivative

摘要

Piperidino-3,4-dihydrocarbostyril compounds represented by the formula: CHEM wherein R1 represents a hydroxy group or an acyloxy group having 2 to 11 carbon atoms; one of R2 and R3 represents a nitro group, a cyano group, an alkoxycarbonyl group having 2 to 7 carbon atoms, an alkyl group having 1 to 4 carbon atoms, a haloalkyl group having 1 to 3 carbon atoms, or a halogen atom, and the other represents a hydrogen atom; and pharmaceutically acceptable salts thereof, exhibit platelet aggregation inhibiting activity and thus being useful as therapeutic agents for the prevention or treatment of cerebral ischemic disorders and arterial ischemic disorders.