A method as drugs and useful for the preparation of perhydroatsepiinijohdannaisten perhydrotiatsepiini-

摘要

Compounds of formula (I): CHEM (wherein A is an alkylene group substituted by an optionally substituted amino or heterocyclic group and optionally interrupted by an oxygen or sulphur atom, R2 is various organic groups, B is C1-C2 alkylene and Y is sulphur or methylene) and pharmaceutically acceptable salts and esters thereof are valuable hypotensive agents which may be prepared by a condensation reaction of the corresponding compound having an amino group in place of the group A-CH(COOH)-NH-.