IMPROVED PROCESS FOR THE PREPARATION OF CRYSTALLINE VENLAFAXINE HYDROCHLORIDE FORM B
Application 143/MUM/2005 published 2006-09-01, filed 2005-02-10
The present invention provides an improved process for the preparation of crystalline venlafaxine hydrochloride Form B characterized by powder X-ray diffraction peaks at 6.7, 10.3, 13.5, 15.4, 15.6, 18.3, 19.8, 20.3 and 21.8±0.2 degree two-theta comprises dissolving venlafaxine hydrochloride in 2-methoxy ethanol and subsequent crystallization. Drawing: 03 Sheets. Total Pages: 14. Fig. Nil
Applicant
ALEMBIC LIMITED
ALEMBIC CAMPUS, ALEMBIC ROAD, VADODARA-390 003, GUJARAT, INDIA.
Inventor
1. RATHOD DHIRAJ M 2. VOHRA IRFAN F. 3. REDDY BUCHI REGURI 4. VINCHHI KISHOR M.
International Info
Classification: A61K 31/137, C07C 213/10, C07C 213/00, C07C 217/74