Isoxazolyl indolamines having anti-diabetic activity

Abstract

This disclosure describes novel compounds of the formula ##STR1## where m is 2, 3 or 4 X is hydrogen or hydroxy R.sub.1 represents hydrogen, fluoro, chloro, lower alkyl having 1 to 4 carbon atoms or lower alkoxy having 1 to 4 carbon atoms, and R.sub.2 and R.sub.3 each independently represent lower alkyl as defined above, or R.sub.2 and R.sub.3 together with N represent ##STR2## wherein n is 1, 2 or 3, and R.sub.4 represents hydrogen or lower alkyl as defined above, and R.sub.5 represents hydrogen, lower alkyl, phenyl or phenyl substituted with fluoro, chloro, lower alkyl having 1 to 4 carbon atoms, or lower alkoxy having 1 to 4 carbon atoms, with the proviso that when X is hydroxy, m is 3 or 4, or a pharmaceutically acceptable acid addition salt thereof, which are useful in the treatment of diabetes by inhibiting or impeding post-prandial hyperglycemia.

Dependencies are inferred from the claim text.