[S-(R*,R*)]-3-[(o-aminophenyl)thio]-3-(p-methoxyphenyl)lactic acid

(αS,βS)-β-[(2-Aminophenyl)thio]-α-hydroxy-4-methoxybenzenepropanoic acid

(D)-(+)-á-[(2-Aminophenyl)-thio]-à -hydroxy-4-methoxyphenylpropionic acid