英文别名Pidotimod Impurity C; (4R)-3-(5-Oxo-D-prolyl)-1,3-thiazolidine-4-carboxylic acid; [R-(R*,R*)]-3-[(5-Oxo-2-pyrrolidinyl)carbonyl]-4-thiazolidinecarboxylic acid; Pidotimod Impurity 1; (4R)-3-[(2R)-5-oxopyrrolidine-2-carbonyl]-1,3-thiazolidine-4-carboxylic acid; 3-D-Pyroglutamyl-(R)-thiazolidine-4-carboxylic acid; (R,R)-Pidotimod