Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Resolution of optical isomers or purification of organic...
Reexamination Certificate
2004-12-23
2008-05-20
Tsang, Cecilia (Department: 1651)
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
Resolution of optical isomers or purification of organic...
C435S128000, C435S132000, C435S141000, C435S155000
Reexamination Certificate
active
07374926
ABSTRACT:
The present invention particularly relates to a chemoenzymatic process for the stereoselective preparation of both enantiomers of 3-hydroxy-4-trityloxy butanenitrile key intermediates for the preparation of (R)-GABOB by lipase mediated kinetic resolution of its racemates and their effective application in the enantioconvergent synthesis of (R)-GABOB.
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Kamal Ahmed
Khanna Gollapalli B. Ramesh
Rondla Ramu
Tadiparthi Krishnaji
Council of Scientific and Industrial Research
Darby & Darby P.C.
Kosar Aaron J
Tsang Cecilia
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