Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
D. Metkar Shashikant0
Sachin Bhuta0
Parven Kumar Luthra0
Chandrakant Abhinay0
N. Chaven Dattatraya0
Date of Patent
April 10, 2018
0Patent Application Number
149761400
Date Filed
December 21, 2015
0Patent Primary Examiner
Patent abstract
The present invention relates to a process for preparing silodosin with high optical purity up to 99.9% enantiomeric excess (e.e.) or above. The process makes use of a method step, in which the enantiomers contained in a racemic mixture of a compound represented by the general formula V: wherein * denotes the asymmetric center, R1 is a protecting group, and R2 is cyano or carbamoyl, are separated.
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