The present invention relates to a process for the preparation of (3-cyano-1H-indol-7-yl)[4-(4-fluorophenethyl)piperazin-1-yl]-methanone and salts thereof, characterised in that an indole ester of the formula II in which R is as defined in Claim 1, is converter into 3-cyano-1H-indole-7-carboxylic acid via steps (1) to (4) according to Claim 1, and this is reacted with 1-[2-(4-fluorophenyl)ethyl]piperazine of salts thereof to give the product.
本发明涉及一种制备(3-
氰基-1H-
吲哚-7-基)[4-(4-
氟苯乙基)
哌嗪-1-基]-甲酮及其盐的过程,其特征在于将式II中R如权利要求1所定义的
吲哚酯通过权利要求1所述的步骤(1)至(4)转化为
3-氰基-1H-吲哚-7-羧酸,然后与
1-[2-(4-氟苯基)乙基]哌嗪或其盐反应得到产物。