Dihydropyridine derivative, processes for preparation thereof and pharmaceutical composition comprising the same

摘要

This invention relates to a dihydropyridine derivative and a salt thereof. More particularly, it relates to a new dihydropyridine derivative and a pharmaceutically acceptable salt thereof which have vasodilating and anti-hypertensive activities, to processes for the preparation thereof, and to pharmaceutical composition comprising the same for therapeutical treatment of cardiovascular disorder and hypertension in human being.