Preparation of 4-((6BR,10AS)-3-methyl-2,3,6B,9,10, 10A-hexahydro-1H-pyrido3′,4′:4,5pyrrolo 1,2,3-dequinoxalin-8-(7H)-yl)-1-(4-fluorophenyl)-1-butanone or a pharmaceutically acceptable salt thereof

摘要

The present invention provides methods for the preparation of 4-(3-methyl-2,3,6b,9,10,10a-hexahydro-1H-pyrido-[3′,4′:4,5]-pyrrolo[1,2,3-de]quinoxalin-8-(7H)-yl)-1-(4-fluorophenyl)-1-butanone in free form or a salt thereof.