Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Rajshekar Aareddy0
Milind Gharpure0
Murali Rajappa0
Narender Rao Somisetti0
Damodhar Kasireddy0
Dhileep Kumar Krishnamurthy0
Date of Patent
December 4, 2018
0Patent Application Number
155708210
Date Filed
May 10, 2016
0Patent Primary Examiner
Patent abstract
A process for the preparation of 5-(3,4-dimethoxyphenylethyl) methyl-amino-2-(3,4-dimethoxyphenyl)-2-isopropyl valeronitrile, which is known as Verapamil is described. A process for improving the purity of verapamil and therefore of its hydrochloride represented as the compound of formula I, by efficient removal of the impurities formed, affording a product of purity greater than 99% is described.
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