反应详情

U.S. Pat. No. 4,831,031 discloses a process for the preparation of ziprasidone hydrochloride, which involves refluxing N-(1,2-benzisothiazol-3-yl)piperazine with 5-(2-chloroethyl)-6-chloro-oxindole in methyl isobutyl ketone in the presence of sodium iodide and sodium carbonate for about 40 hours followed by column chromatographic purification of the product to get ziprasidone base which is dissolved in methylene chloride and treated with ethereal hydrogen chloride to get ziprasidone hydrochloride salt. The salt is washed with acetone and the product is dried.

1. customfollowed by column chromatographic purification of the product