The compounds of the present invention are compounds of the formula
and the pharmaceutically acceptable esters and salts thereof wherein R' and R2 independently are hydrogen or lower alkyl; the group
is one of the structures II to VIII specified in the description, one of R3, R4 and R5 is a group Z-(CH2)0-6-' wherein Z is selected from Z' to Z10 being as defined in the description and the other of the groups R3, R4 and R5 are as also defined. The compounds are useful as antihypertensive agents, in the treatment of congestive heart failure and glaucoma. Their preparation and pharmaceutical compositions are disclosed.
本发明的化合物是如下式的化合物
及其药学上可接受的酯和盐 其中 R' 和 R2 分别为氢或低级烷基;基团
是描述中规定的结构 II 至 VIII 之一,R3、R4 和 R5 中的一个是基团 Z-(
CH2)0-6-',其中 Z 选自描述中定义的 Z' 至 Z10,基团 R3、R4 和 R5 中的另一个也如定义。这些化合物可用作降压药、治疗充血性心力衰竭和青光眼。已公开了它们的制备方法和药物组合物。