A PROCESS FOR THE PREPARATION OF 7-(4(4-(2,3-DICHLOROPHENYL)PIPERAZIN-1-YL)BUTOXY)QUINOLIN-2(1H)-ONE, AN IMPURITY OF ARIPIPRAZOLE.

摘要

The present invention provides a process for the preparation of 7-(4-(4-(2,3-dichlorophenyl)piperazin-1-yl)butoxy)quinolin-2(1H)-one, compound of formula II or pharmaceutical acceptable salts thereof, which may present in aripiprazole as an impurity. Formula II