Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Mun Choun Ha0
You Sup Chung0
Date of Patent
April 10, 2007
0Patent Application Number
105270910
Date Filed
September 8, 2003
0Patent Primary Examiner
Patent abstract
Provided is a process for the preparation of S-(−)-amlodipine from (R,S)-amlodipine in industrial-scale using L-(+)-tartaric acid, which is much cheaper than D-(−)-tartaric acid.
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