Abstract

Abstract From a single chiron (R)-(+)-5, available with high enantiomeric excess (97%) by enzymatic hydrolysis (PLE acetonic powder) of a malonate, were prepared convenient precursors of aminoglutethimides (−)-AG-1 and (+)-AG-1. This versatile method also allows preparation of the b-hydroxy ester (R)-9 and its enantiomer (S)-9 as well as the glutethimides (S)-4 and (R)-4 and other analogues.

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