Process for Preparation of Olanzapine Pamoate

An improved process for preparation of Olanzapine pamoate monohydrate from Olanzpaine is disclosed which comprises mixing at room temperature a solution of olanzapine prepared in water in presence of an acid, with a solution of pamoic acid prepared in water in presence of a base; stirring and mainta...

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Hauptverfasser: NEELA PRAVEENKUMAR, REDDY KUBIREDDY VIGNESHWAR, WADEKAR KASHYAP RAVINDRABHAI, LAXMALLA SAMPATH KUMAR, RAVI PONNAIAH
Format: Patent
Sprache:eng
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Zusammenfassung:An improved process for preparation of Olanzapine pamoate monohydrate from Olanzpaine is disclosed which comprises mixing at room temperature a solution of olanzapine prepared in water in presence of an acid, with a solution of pamoic acid prepared in water in presence of a base; stirring and maintaining the reaction mixture for a sufficient time till precipitation of solid and drying the solid to obtain olazapine pamoate monohydrate.