英文别名benzyl (2r)-4-oxoazetidine-2-carboxylate; benzyl (R)-4-oxoazetidine-2-carboxylate; 2-Azetidinecarboxylic acid, 4-oxo-, phenylmethyl ester, (2R)-; Phenylmethyl (2R)-4-oxo-2-azetidinecarboxylate; Linezolid Impurity 137; (2R)-4-Oxazetidine-2-carboxylic acid benzyl ester 
