Invention Grant
- Patent Title: Process for preparation of celecoxib
- Patent Title (中): 塞来昔布的制备方法
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Application No.: US12051059Application Date: 2008-03-19
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Publication No.: US07919633B2Publication Date: 2011-04-05
- Inventor: Raghupathi Reddy Anumula , Goverdhan Gilla , Sampath Alla , Thirupathi Reddy Akki , Yakambram Bojja
- Applicant: Raghupathi Reddy Anumula , Goverdhan Gilla , Sampath Alla , Thirupathi Reddy Akki , Yakambram Bojja
- Applicant Address: IN Hyderabad US NJ Bridgewater
- Assignee: Dr. Reddy's Laboratories Limited,Dr. Reddy's Laboratories, Inc.
- Current Assignee: Dr. Reddy's Laboratories Limited,Dr. Reddy's Laboratories, Inc.
- Current Assignee Address: IN Hyderabad US NJ Bridgewater
- Agent Thomas C. McKenzie; Robert A. Franks; Balaram Gupta
- Priority: IN558CHE/2007 20070319
- Main IPC: C07D231/12
- IPC: C07D231/12
Abstract:
There is provided a process for preparation of celecoxib by reacting 4,4,4-trifluoro-1-[4-(methyl)phenyl]butane-1,3-dione with 4-sulphonamidophenylhydrazine or its salt in a solvent medium that contains an alkyl ester. There is also provided a process for the purification of celecoxib using aromatic hydrocarbon solvents.
Public/Granted literature
- US20080234491A1 PROCESS FOR PREPARATION OF CELECOXIB Public/Granted day:2008-09-25
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