The present invention concerns a process for the preparation of 5-(2-(4-(1,2- 5 benzisothiazol-3-yl)-1-piperazinyl)ethyl)-6-chloro-1,3-dihydro-2H-indol-2-one of the formula (I), or a pharmaceutically acceptable acid addition salt, solvate, hydrates or clathrate thereof, said process comprising reacting a compound of formula (II) wherein X is a halogen atom, with a compound of formula (III), said compound of formula (III) being the free base or an addition salt with an organic or inorganic acid, wherein said process is characterized in that said compounds according to formulas (II) and (III) are reacted in the presence of a neutralizing agent, and are reacted in a solvent comprising acetonitrile.
本发明涉及一种制备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(式(I))或其药学上可接受的酸加合物、溶剂化物、
水合物或包合物的方法,该方法包括将式(II)的化合物与式(III)的化合物反应,其中X为卤原子,所述的式(III)的化合物为自由碱基或与有机或
无机酸形成加合物,所述方法的特点在于,在中和剂的存在下,将式(II)和式(III)的化合物在
丙腈溶剂中反应。