英文同义词: | (2S-trans)-2-Methyl-4-oxo-3-azetidinyl]-carbaMic Acid 1,1-DiMethylethyl Ester;N-[(2S,3S)-2-Methyl-4-oxo-3-azetidinyl]-carbaMic Acid 1,1-DiMethylethyl Ester;N-[(2S,3S)-2-Methyl-4-oxo-3-azetidinyl]-carbaMic Acid tert-Butyl Ester;Aztreonam Impurity 50;Carbamic acid, N-[(2S,3S)-2-methyl-4-oxo-3-azetidinyl]-, 1,1-dimethylethyl ester;tert-Butyl ((2S,3S)-2-methyl-4-oxoazetidin-3-yl)carbamate |