METHODS OF CRYSTALLIZING (R) -1- (3 -HYDROXYPROPYL) -5- [2- [2- [2- ( 2, 2, 2 - TRIFLUOROETHOXY) PHENOXY] ETHYLAMINO] PROPYL] INDOLINE-7 -CARBOXAMIDE

摘要

The present invention provides a process for crystallization of various forms of silodosin. In particular the present invention provides a process for crystallizing a and ß forms of silodosin from various solvents and their mixtures using various crystallization techniques.