US Patent 7928240 Process for preparation of substituted sulfoxides
Patent 7928240 was granted and assigned to Hetero Drugs on April, 2011 by the United States Patent and Trademark Office.
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Patent abstract
The present invention relates to a process for preparing substituted sulfoxides either as a single enantiomer or in an enantiomerically enriched form. Thus, racemic omeprazole is reacted with (S)-camphorsulfonyl chloride to form a diastereomeric mixture and the diastereomers are separated by fractional crystallization, followed by deprotection to give esomeprazole.
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Patent Inventor Names
Bandi Parthasaradhi Reddy0
Dasari Muralidhara Reddy0
Kura Rathnakar Reddy0
Raji Reddy0
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US Patent 07928240 Process for preparation of substituted sulfoxides US Patent 7928240 Process for preparation of substituted sulfoxides
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Patent Number
07928240
Patent Number
7928240
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Official Website
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US Patent 07928240 Process for preparation of substituted sulfoxides
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Is a
Current assignee
Patent jurisdiction
Patent number
07928240
Date of patent
April 19, 2011
Patent application number
11620830
Date Filed
January 8, 2007
Patent primary examiner
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