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
2005-05-03
2005-05-03
Marx, Irene (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...
C549S453000, C549S341000, C549S354000, C435S118000
Reexamination Certificate
active
06887700
ABSTRACT:
A process is provided for preparing an enantiopure 1,3-dioxolan-4-one or 1,3-oxathiolan-5-one derivative, which includes bringing a mixture containing enantiomeric 1,3-dioxolan-4-one or 1,3-oxathiolan-5-one derivatives and an enzyme with hydrolytic activity into contact in the presence of a nucleophile. Cleaving a dioxolanone/oxathiolanone ring of one enantiomer occurs by the enzyme with hydrolytic activity and, after the cleavage of one enantiomer has taken place, the uncleaved enantiomer of the 1,3-dioxolan-4-one or 1,3-oxathiolan-5-one derivative is isolated.
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Gilch Andrea
Petersen Hermann
Popp Alfred
Rockinger-Mechlem Jodoca
Stohrer Jürgen
Collard & Roe P.C.
Consortium für Elektrochemische Industrie GmbH
Marx Irene
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