英文别名(S)-benzyl 4-oxo-2-azetidine-carboxylate; benzyl (R)-azetidin-2-one-4-carboxylate; 2-azetidinecarboxylic acid,4-oxo-,phenylmethyl ester; 4-oxo-azetidine-2-carboxylic acid benzyl ester; azetidinone-4-carboxylic acid benzyl ester; 4-benzyloxycarbonyl azetidin-2-one; 4-(benzyloxycarbonyl)-2-azetidinone; Benzyl 4-Oxo-2-azetidinecarboxylate; 2-Azetidinecarboxylic acid, 4-oxo-, phenylmethyl ester; Phenylmethyl 4-oxo-2-azetidinecarboxylate; 4-Oxo-2-azetidinecarboxylic acid phenylmethyl ester; 2-Cbz-4-oxoazetidine 
