A process for preparing acyl derivatives as prodrugs of 5- (2- (4- (1, 2 benzisothiazole- 3-yl)- 1-piperazinyl) ethyl-6 -chloro-1, 3-dihydro -2H- indol- 2- one and pharmaceutically acceptable acid addition salts and methods of use as an antipsychotic.
展开▼