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
2008-06-24
2008-06-24
Lilling, Herbert J. (Department: 1657)
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
Resolution of optical isomers or purification of organic...
C435S146000, C435S183000, C435S252100
Reexamination Certificate
active
07390647
ABSTRACT:
The invention relates to a method for producing chiral α-hydroxycarboxylic crystalline acids consisting in transforming cyanhydrins (R) or (S) into α-hydroxycarboxylic acids (R) or (S), respectively by enzymatic hydrolysis in the presence ofRhodococcus erythropolisNCIMB 11540.
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International Search Report for PCT/EP2004/000859 completed May 4, 2004, three pages.
Mei-Xiang Wang et al; “Enantioselective biotransformations of racemic a-substituted α-substituted phenylacetonitriles and phenylacetamides usingRhodococcussp. AJ270”; Tetrahedron: Asymmetry 11 (2000) 1123-35.
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Griengl Herfried
Osprian Ingrid
Reisinger Christoph
Schoemaker Hans
Schwab Helmut
DSM Fine Chemicals Austria NFG GmbH & Co KG
Lilling Herbert J.
Nixon & Vanderhye P.C.
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