Enantioselective Synthesis of α,α-Disubstituted Amino Acid Derivatives <i>via</i> Enzymatic Resolution: Preparation of a Thiazolyl-Substituted α-Methyl α-Benzyl Amine
作者:Denice M. Spero、Suresh R. Kapadia
DOI:10.1021/jo9610671
日期:1996.1.1
enantioselective synthesis of the (S)-alpha,alpha-disubstituted phenethylamine 1 viaLipaseresolution of the esters 3 and 4 is described. The effect of pH, enzyme load, and solubilizing additives has been studied and optimized. Conversion of the carboxylic acid 10 to the desired thiazole 1 is accomplished in high overall yield via an intermediate oxazolinone 13. This facile process requires only a