The present invention relates to a process for preparing Ziprasidone of formula I,
or a pharmaceutically acceptable salt or a solvate or a hydrate thereof;
comprising the steps of reacting 1-(1,2-benzisothiazol-3-yl) piperazine of formula II or its salt:
with 5-(2-haloethyl)-6-chloro-oxindole of formula III:
wherein X is leaving groups like fluoro, chloro, bromo, iodo or sulphonyl;
in the presence of a dispersing agent and a base in a solvent to form ziprasidone of formula I; and optionally converting the ziprasidone formed into a pharmaceutically acceptable acid addition salts of ziprasidone; or a solvate or a hydrate thereof.
本发明涉及制备式I的Ziprasidone、其药学上可接受的盐、溶剂或
水合物的方法;包括在溶剂中,在存在分散剂和碱的情况下,将式II或其盐的1-(1,2-苯并
异噻唑-3-基)
哌嗪与式III的5-(2-卤乙基)-6-
氯-氧化
二苯并呋喃反应,其中X是类似
氟、
氯、
溴、
碘或磺酰基的离去基团,以形成式I的Ziprasidone;并且可选择将形成的Ziprasidone转化为药学上可接受的Ziprasidone酸加盐、溶剂或
水合物。