Indole-carboxylic acid compounds of the formula: ##STR1## wherein R.sub.1 is lower alkyl or alkoxy radical or halogen; R.sub.2 is halogen; lower alkyl or alkoxy radical; or R.sub.1 and R.sub.2 can together also form an alkylene bridge containing 3 to 5 carbon atoms, which can optionally contain one or more double bonds; and, but less preferably, when R.sub.1 is a lower alkyl or alkoxy radical, R.sub.2 can also be a hydrogen atom, and physiologically compatible salts and esters thereof, Are outstandingly effective as blood sugar-lowering agents.
Indole-
羧酸化合物的
化学式如下:##
STR1## 其中 R.sub.1 是较低的烷基或烷
氧基基团或卤素;R.sub.2 是卤素;较低的烷基或烷
氧基基团;或者 R.sub.1 和 R.sub.2 也可以一起形成含有 3 到 5 个
碳原子的烷基桥,该桥可选择性地含有一个或多个双键;但是不太好的是,当 R.sub.1 是较低的烷基或烷
氧基基团时,R.sub.2 也可以是
氢原子,其生理兼容性盐和
酯非常有效地降低血糖。