英文别名Side chain for imipenem; (R)-2-[(3S,4S)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-oxoazetidin-2-yl]propanoic acid; beta-Methylazetidin-2-one; 1-BMA; 4-BMA; Intermediate of Meropenem; 2-Azetidineacetic acid, 3-[(1R)-1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]-a-methyl-4-oxo-, (aR,2S,3S)-; (2R)-2-[(2S,3S)-3-(1-{[tert-butyl(dimethyl)silyl]oxy}ethyl)-4-oxoazetidin-2-yl]propanoic acid; SS-METHYLAZETIDIN-2-ONE; (3S,4S)-3-((R)-(tert-Butyldimethyl-silyloxy)ethyl)-4((R)-carboxyethyl)-2-azetidinone; B-METHYLAZETIDIN-2-ONE; Side chain for iMipe; (2R)-2-{(2S,3S)-3-[(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}ethyl]-4-oxoazetidin-2-yl}propanoic acid; (2R)-2-{(2S,3S)-3-[(1R)-1-{[Dimethyl(2-methyl-2-propanyl)silyl]oxy}ethyl]-4-oxo-2-azetidinyl}propanoic acid 
