Studies on Optically Active Amino Acids. IX. Studies on α-Alkyl-α-amino Acids. IV. Chemical Correlation of Absolute Configuration of α-Methylaspartic Acid to Isovaline

Abstract

The absolute configuration of (+)-α-methylaspartic acid has been established to be S-configuration by the chemical correlation with (+)-isovaline, which was already correlated to D-(-)-quinic acid. The Chemical scheme employed was shown in Chart 1. Preliminary examinations using racemic compounds were also reported.