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Process for preparing carbamazepine from iminostilbene
   
Document Number
US Patent 6245908
Issued Date
June 12, 2001
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Abstract
A process for preparing carbamazepine from iminostilbene is disclosed. The iminostilbene is reacted with urea in a protonating medium. This process results in improvements over prior art processes involving iminostilbene. Carbamazepine is a known muscle relaxant, anticonvulsant and antidepressant drug.
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Number of Claims:
13
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Owner
Max India Limited (Punjub,IN)
Published
June 12, 2001
Application Number
09/253,583
Filed
February 19, 1999
US Classification
540/589  
Int'l Classification
C07D   223/18   (20060101)   C07D   223/26   (20060101)   C07D   223/00   (20060101)  
Examiner
Attorney/Law Firm
Priority Data
Nov 16, 1998 [IN] 3427/98
USPTO Field of Search
540/589  
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