Compounds of formula (I):
(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-.
式(I)化合物:
(其中 A 是被任选取代的
氨基或杂环基团取代的亚烷基,并任选被氧原子或
硫原子间断,R2 是各种有机基团,B 是 C1-C2 亚烷基,Y 是
硫或亚甲基)及其药学上可接受的盐和酯是有价值的降血压药,可通过相应化合物的缩合反应制备,该化合物中的
氨基取代了 A-CH(COOH)-NH- 基团。