Practical asymmetric enzymatic reduction through discovery of a dehydrogenase-compatible biphasic reaction media.
[reaction: see text] An enzyme-compatible biphasic reaction media for the asymmetric biocatalytic reduction of ketones with in situ cofactor regeneration has been developed. In this biphasic reaction media, which is advantageous for reactions at higher substrate concentrations, both enzymes (alcohol dehydrogenase and FDH from Candida boidinii) remain stable. The reductions with poorly water-soluble ketones were carried out at substrate concentrations of 10-200 mM, and the optically active (S)-alcohols were formed with moderate to good conversions and with up to >99% ee.
Gröger
Harald
H
Degussa AG, Project House Biotechnology, P.O. Box 1345, 63403 Hanau, Germany.
Hummel
Werner
W
Buchholz
Stefan
S
Drauz
Karlheinz
K
Nguyen
Tien Van
TV
Rollmann
Claudia
C
Hüsken
Hendrik
H
Abokitse
Kofi
K
D000426:Alcohol Dehydrogenase / Q000737:chemistry / Q000378:metabolism*; D002384:Catalysis; D004795:Enzyme Stability; D005560:Formate Dehydrogenases / Q000378:metabolism; D006865:Hydrogenation; D007659:Ketones / Q000737:chemistry*; D012997:Solvents
D007659:Ketones; D012997:Solvents; D000426:Alcohol Dehydrogenase; C037212:formate dehydrogenase (NADP+); D005560:Formate Dehydrogenases