ISOQUINOLINESULFONYL DERIVATIVES AND PROCESS FOR THE PREPARATION THEREOF

摘要

A 5-isoquinolinesulfonyl derivative of Formula (I): (I) wherein l is zero or one; m and n each is an integer of one to nine; m+n is an integer of at least one; R1 is a hydrogen atom, a C1-10 alkyl group, a C5-6 cycloalkyl group or an aryl group; or R2 and R3 each is a hydrogen atom, a C1-10 alkyl group, a C5-6 cycloalkyl group, an aryl group or an aralkyl group; R2 and R3 are C1-6 alkylene groups and linked directly or through an oxygen atom to form a 5- to 7-membered heterocyclic ring with the adjacent nitrogen atom; or the group is a group wherein R4 and R5 each is a hydrogen atom, a C1-10 alkyl group, an aryl group or an aralkyl group and R6 is a hydrogen atom, a C1-10 alkyl group, and aryl group, an aralkyl group, a benzoyl group, a cinnamyl group, a cinnamoyl group, a furoyl group or a group wherein R7 is a C1-8 alkyl group; and the pharmaceutically acceptable salt thereof; and a process for the preparation thereof. The compounds of this invention have a relaxatory action for vascular smooth muscle and are useful as a vasodilator and a hypotensor.