US Patent 7385072 Methods for the preparation of Entacapone
Patent 7385072 was granted and assigned to Suven Life Sciences on June, 2008 by the United States Patent and Trademark Office.
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Patent Inventor Names
Arava Veera Reddy0
Chinnapillai Rajendiran0
Jasti Venkateswarlu0
Samjuddin Md Md0
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Patent abstract
The invention disclosed in this application relates to an improved process for the preparation of Entacapone. In one embodiment the process involves: (i) reacting a 3-alkoxy-4-hydroxy-5-nitrobenzadehyde with N,N-diethylaminocyanoacetamide in the presence of a mild acid catalyst and a solvent, to provide a 3-O-alkylated Entacapone, and treating the 3-O-alkylated Entacapone with an acid catalyst in the presence of an organic base to provide Entacapone.
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US Patent 07385072 Methods for the preparation of Entacapone US Patent 7385072 Methods for the preparation of Entacapone
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Patent Number
07385072
Patent Number
7385072
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Official Website
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US Patent 07385072 Methods for the preparation of Entacapone
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Is a
Current assignee
Patent jurisdiction
Patent number
07385072
Date of patent
June 10, 2008
Patent application number
11478552
Date Filed
June 29, 2006
Patent primary examiner
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