PROCESS FOR PRODUCING THIO-FORMAMIDE DERIVATIVES AND PHARMACEUTICAL PREPARATIVES CONTAINING THESE COMPOUNDS

摘要

Thioformamide derivatives of the formula (I) wherein R represents an alkyl group; A represents either:- (1) a phenyl group which is optionally substituted; or (2) a heteroaromatic group (e.g. pyrid-3-yl, quinolin-3-yl); Y represents:- an ethylene or methylene group or a direct bond; and B represents either:- a) a phenyl, pyridyl, furyl or thienyl group, each of which may be optionally substituted, or b) a straight- or branched-chain alkyl, alkenyl, or cycloalkyl group, each of which may be optionally substituted. These compounds may be formulated into pharmaceutical preparations and have utility in the treatment of disorders associated with smooth muscle contraction.