Patent ID: 7799916

Claim:
A process for the preparation of 5-(4-[4-(5-cyano-3-indolyl)butyl]-1-piperazinyl)benzofuran-2-carboxamide and/or a physiologically acceptable salt thereof, comprising reacting a compound of the formula I in which L is Cl, Br, I, SO 2 F, SO 2 CF 3 or SO 2 C 2 F 5 , with 3-(4-piperazin-1-ylbutyl)indole-5-carbonitrile by transition-metal-catalysed coupling by means of a Pd complex, and/or converting the 5-(4-[4-(5-cyano-3-indolyl)butyl]-1-piperazinyl)benzofuran-2-carboxamide formed into an acid addition salt thereof by treatment with an acid.