Abstract
A simple and stereoselective synthesis of 3-methylthalidomide, a configurationally stable thalidomide analog, is presented. Herein we describe the synthesis of (R)-3-methylthalidomide starting from (S)-alanine by piperidin-2-one ring assembly approach in high yield and enantiomeric purity without using a chiral auxiliary or reagent. Starting from (R)-alanine, the corresponding (S)-3-methylthalidomide can be prepared using the same methodology.
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