作者: María López-Iglesias , Daniel González-Martínez , Vicente Gotor , Eduardo Busto , Wolfgang Kroutil
关键词: Enantiopure drug 、 Enantioselective synthesis 、 Biocatalysis 、 Reactivity (chemistry) 、 Chemistry 、 Stereochemistry 、 Transamination 、 Stereoselectivity 、 Ketone 、 Amination
摘要: A set of transaminases has been investigated for the biocatalytic amination 1-(4-chloropyridin-2-yl)alkan-1-ones. The influence chain length n-1-alkanone at C-2 position pyridine studied in reaction with different (R)- and (S)-selective transaminases. Thus, enantiopure amines were isolated high purity starting from a wide selection prochiral ketones. On one hand, excellent yields (from 97 to >99% conversion, up 93% yield) stereoselectivity values (>99% ee both amine enantiomers) found linear short substituents such as ethanone or propanone. other more hindered substrates accepted only when using evolved enzymes an variant (R)-Arthrobacter (ArRmut11-TA). An initial common structural feature was presence chlorine atom on C-4 core, which increase reactivity ketone, giving extra versatility intro...