Compounds of formula (I):
(wherein R¹ and R³ are organic groups, A is a direct bond, -CH₂-, -CH₂CH₂-, -CO-CH₂-, -O-CH₂- or -S-CH₂-, B is lower alkylene and n is l-3) are valuable hypotensive agents which may be prepared by a condensation reaction of the corresponding compound having an amino group at the 3-position.
式(I)化合物:
(其中 R¹ 和 R³ 为有机基团,A 为直接键、-CH₂-、-CH₂CH₂-、-CO-CH₂-、-O-CH₂- 或 -S-CH₂-,B 为低级亚烷基,n 为 l-3)是有价值的降血压剂,可通过在 3 位上具有
氨基的相应化合物的缩合反应制备。