DIHYDROPYRIDINE ANTI-ISCHAEMIC AND ANTIHYPERTENSIVE AGENTS,PROCESSES FOR THEIR PRODUCTION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

摘要

DIHYDROPYRIDINES OF THE FORMULA:(FORMULA 1)AND THEIR PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTSWHEREIN Y IS -(CH2)2-, -(CH2)3-, CH2CH(CH3)- OR -CH2C)CH3)2- : R IS ARYL OR HETEROARYL: R1 AND R2 ARE EACH INDEPENDENTLY C1-C4 ALKYL OR 2-METHOXYATHYL:AND R3 IS HYDROGEN, C1-C4 ALKYL, 2-(C1-C4 ALKOXY) ETHYL, CYCLOPROPYLMETHYL, BENZYL, OR -(CH2)MCOR4 WHERE M IS 1,2 OR 3 AND R4 IS HYDROXY, C1-C4 ALKOXY OR -NR5R6 WHERE R5 AND R6 EACH INDEPENDENTLY HYDROGEN OR C1-C4 ALKYL PHARMACEUTICAL COMPOSITIONS CONTAINING THEM, AND PROCESSES FOR THEIR PRODUCTION.THE COMPOUNDS ARE PARTICULARLY USEFUL IN THE TREATMENT OR PREVENTION OF A VARIETY OF CARDIAC CONDITIONS, E.G. ANGINA PECTORIS.