NOVEL PROCESS FOR PRODUCTION OF 5--6-CHLORO-1,3-DIHYDRO-2H-INDOL-2-ONE (ZIPRASIDONE)
申请人:Neu Jozsef
公开号:US20090111988A1
公开(公告)日:2009-04-30
The present invention provides a novel, industrially easily realisable and economically preferable process for production of pure 5-2-[4-(1,2-benzisothiazol-3-yl)-1-piperazinyl]-ethyl}-6-chloro-1,3-dihydro-2H-indol-2-one i.e., ziprasidone hydrochloride shown in the reaction scheme (II), (III), (IV), (V) and (VI). According to the invention the intermediate compound 5-(2-bromoethyl)-6-chloro-1,3-dihydro-2H-indol-2-one of Formula (III) is produced from 5-(2-bromoacethyl)-6-chloro-1,3-dihydro-2H-indole-2-one of Formula (IV). The highly pure ziprasidone base of Formula (II) is obtained in the reaction of 3-piperazinyl-1,2-benzisothiazol of Formula (VI) with 5-(2-bromoethyl)-6-chloro-1,3-dihydro-2H-indol-2-one of Formula (III) in an organic solvent or organic solvent mixture.
本发明提供了一种新颖、工业上易实现和经济上优先的纯5-2-[4-(1,2-苯并异噻唑-3-基)-1-哌嗪基]-乙基}-6-氯-1,3-二氢-2H-吲哚-2-酮即Ziprasidone HCL的生产方法,如反应方程式(II)、(III)、(IV)、(V)和(VI)所示。根据本发明,从式(IV)的5-(2-溴乙酰基)-6-氯-1,3-二氢-2H-吲哚-2-酮中生产出式(III)的5-(2-溴乙基)-6-氯-1,3-二氢-2H-吲哚-2-酮中间体。在有机溶剂或有机溶剂混合物中,通过式(VI)的3-哌嗪基-1,2-苯并异噻唑与式(III)的5-(2-溴乙基)-6-氯-1,3-二氢-2H-吲哚-2-酮反应,得到高纯度的式(II)的Ziprasidone碱。