Studies on Optically Active Amino Acids. X. Studies on α-Alkyl-α-amino Acids. V. Absolute Configuration of Biochemically Active (-)-α-Methyl-3, 4-dihydroxyphenylalanine

Abstract
The absolute configuration of biologically active (-)-[alpha]-methyl-3,4-dihydroxyphenylalanine has been elucidated to be L- or S-configuration by the chemical correlation with (+)-[alpha]-methylaspartic acid, whose absolute configuration was confirmed in the previous report. Preliminary examinations using racemic compounds were also described.