New indole-2-carbaldehyde compounds of the formula ##STR1## wherein R.sub.1 is lower alkyl R.sub.2 is hydrogen, halogen, or lower alkyl or alkoxy, With the proviso that when R.sub.2 is halogen or ethyl, R.sub.1 can also be hydrogen And the physiologically compatible derivatives thereof, are outstandingly effective in lowering excessive blood sugar in mammals.
新的
吲哚-2-甲醛化合物的公式为##STR1##其中R.sub.1是较低的烷基,R.sub.2是氢,卤素或较低的烷基或烷氧基,但当R.sub.2是卤素或乙基时,R.sub.1也可以是氢。其生理相容性衍
生物,在降低哺乳动物的过高血糖方面表现出卓越的效果。