Invention Application
WO2007029155A2 AN IMPROVED PROCESS FOR PREPARATION OF PURE CELIPROLOL BASE
审中-公开
一种改进的制备纯CELIPROLOL BASE的方法
- Patent Title: AN IMPROVED PROCESS FOR PREPARATION OF PURE CELIPROLOL BASE
- Patent Title (中): 一种改进的制备纯CELIPROLOL BASE的方法
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Application No.: PCT/IB2006/053073Application Date: 2006-09-01
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Publication No.: WO2007029155A2Publication Date: 2007-03-15
- Inventor: KUMAR, Naresh , NAYYAR, Sandeep , MAHENDRU, Manu
- Applicant: RANBAXY LABORATORIES LIMITED , KUMAR, Naresh , NAYYAR, Sandeep , MAHENDRU, Manu
- Applicant Address: Plot No. 90, Sector 32, Gurgaon 122001, Haryana IN
- Assignee: RANBAXY LABORATORIES LIMITED,KUMAR, Naresh,NAYYAR, Sandeep,MAHENDRU, Manu
- Current Assignee: RANBAXY LABORATORIES LIMITED,KUMAR, Naresh,NAYYAR, Sandeep,MAHENDRU, Manu
- Current Assignee Address: Plot No. 90, Sector 32, Gurgaon 122001, Haryana IN
- Agency: RANBAXY LABORATORIES LIMITED
- Priority: IN2360/Del/2005 20050905
Abstract:
The present invention relates to an improved process for preparing pure celiprolol base in monohydrate form by crystallizing crude celiprolol base in one or more carboxylic acid ester solvents and its conversion to pharmaceutically acceptable acid addition salts, for example, celiprolol hydrochloride Form I in high purity.
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