The present invention relates the process for preparation of stable polymorph of aripiprazole and in particular the present invention is related to an improved process for the preparation of crystalline anhydrous aripiprazole and its hydrochloride salt.
[EN] NOVEL CRYSTALLINE FORMS OF ARIPIPRAZOLE<br/>[FR] NOUVELLES FORMES CRISTALLINES D'ARIPIPRAZOLE
申请人:HETERO DRUGS LTD
公开号:WO2004083183A1
公开(公告)日:2004-09-30
The present invention provides novel crystalline forms of aripiprazole and aripiprazole hydrochloride, processes for their preparation and pharmaceutical compositions containing them.
Adaptability of aripiprazole towards forming isostructural hydrogen bonding networks in multi-component salts: a rare case of strong O–H⋯O− ↔ weak C–H⋯O mimicry
crystals with the modulation of its conformation and hydrogen bond synthons. Salts with aromatic acids engage in three-dimensional isostructural helical networks and the inorganic acidsalts form two-dimensional layered networks. Remarkably, the helices mediated by strong charge assisted O–H⋯O− interactions are mimicked by weaker neutral C–H⋯O interactions in aromatic salts of aripiprazole. Our results