英文别名2-Azetidinebutanoic acid, α-diazo-3-[(1R)-1-hydroxyethyl]-γ-methyl-β,4-dioxo-, (4-nitrophenyl)methyl ester, (γR,2R,3S); (R)-4-nitrobenzyl 2-diazo-4-((2R,3S)-3-((R)-1-hydroxyethyl)-4-oxoazetidin-2-yl)-3-oxopentanoate; Meropenem Impurity 1; (γR,2R,3S)-α-diazo-3-[(1R)-1-hydroxyethyl]-γ-methyl-β,4-dioxo-2-azetidinebutanoic acid (4-nitrophenyl)methyl ester; 4-Nitrobenzyl (R)-2-diazo-4-((2R,3S)-3-((R)-1-hydroxyethyl)-4-oxoazetidin-2-yl)-3-oxopentanoate 
