Enantioselective syntheses of α-amino-β-hydroxy acids, and [15N]-L-threonine
作者:Andrew Sutherland、Christine L. Willis
DOI:10.1016/s0040-4039(97)00164-0
日期:1997.3
The enantioselective synthesis of from ethyl (S)-lactatevia methyl (S)-3-methoxymethoxy-2-oxobutanoate15 is described. The stereogenic centre at C-2 was established by a one-pot, dual enzyme catalysed hydrolysis of the ester (by a lipase) and reductiveamination of the ketone of 15 (with leucine dehydrogenase) to give, after deprotection, acid as a single diastereomer in 93% yield. [15N]-L-Threonine