4BMA
4-BMA
1-BMA
1-Bma Or 4-Bma
4-BMA(for Meropenem)
-methylazetidin-2-one
β-methylazetidin-2-one
side chain for imipenem
Intermediate of Meropenem
beta-Methylazetidin-2-one
(R)-2-[(3S,4S)-3-[(R)-1-(tert-
Butyldimethylsilyloxyethylcarboxyet
(3S,4S)-3-[(R)-(BUTYLDIMETHYLSILYLOXY)ETHYL]-4-[(R)-CARBOXYETHYL]-2-AZETIDINONE
(3S 4S)-3-[(R)-1-(T-BUTYLDIMETHYLSILYLOXY)ETHYL]-4-[(R)-1-CARBOXYETHYL]-2-AZETIDINONE
(3S,4S)-4-[(R)-1-carboxyethyl]-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-2-azetidinone
(3S,4S)-4-[(R)-1-carboxy-ethyl]-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-2-azetidinone
(3S,4S)-3-[(R)-1-(TERT-BUTYLDIMETHYLSILOXY)ETHYL]-4-[(R)-1-CARBOXYETHYL]-2-AZETIDINONE
(3S,4S)-3-[(R)-1-(TERT-BUTYLDIMETHYLSILYLOXY)ETHYL]-4-[(R)-1-CARBOXYETHYL]-2-AZETIDINONE
(R)-2-((2S,3S)-3-((R)-1-(TERT-BUTYLDIMETHYLSILYLOXY)ETHYL)-4-OXOAZETIDIN-2-YL)PROPANOIC ACID
(2R)-2-{(2S,3S)-3-[(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}ethyl]-4-oxoazetidin-2-yl}propanoic acid
2-Azetidineacetic acid, 3-[(1R)-1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]-a-methyl-4-oxo-, (aR,2S,3S)-
[2R-[2α(R*),3β(R*)] ]-3-[1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]-α-methl-4-oxo-2-azetidineacetic acid