Enantiodivergent, Biocatalytic Routes to Both Taxol Side Chain Antipodes
作者:Brent D. Feske、Iwona A. Kaluzna、Jon D. Stewart
DOI:10.1021/jo0516077
日期:2005.11.1
N-benzoyl phenylisoserine Taxol sidechain. After base-mediated ring closure of the chlorohydrin enantiomers, the epoxides were converted directly to the oxazoline form of the target molecules using a Ritter reaction with benzonitrile. These were hydrolyzed to the ethyl ester form of the Taxol sidechain enantiomers under acidic conditions. This brief and atom-efficient route to both target enantiomers