CAS NO:90822-24-5;158299-05-9;137391-68-5

EC NO:

Molecular Formula:C₁₆H₁₈BrNO₃

Molecular Weight:352.223

Synonyms:;BPSBC;BR-Comp;3-(2-bromopropanoyl)spiro[1,3-benzoxazine-2,1'-cyclohexan]-4(3H)-one;F-9;Meropenem Intermediates;Meropenem intermediates F–9;(3S,4R)-3-[(1R)-1-Hydroxyethyl]-4-[(1R)-1-methyl-3-diazo-3-(p-nitrobenzyloxycarbonyl)-2-oxopropyl]azetidin-2-one;F-9(Intermediate Of Meropenem);(R)-4-Nitrobenzyl 2-diazo-4-((2R,3S)-3-((R)-1-hydroxyethyl)-4-oxoazetidin-2-yl)-3-oxopentanoate;

Molecular Structure:

CAS NO:90776-58-2

EC NO:

Molecular Formula:C₁₄H₂₇NO₄Si

Molecular Weight:301.454

Synonyms:;1-BMA;(3S,4S)-4-[(R)-1-carboxy-ethyl]-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-2-azetidinone;β-methylazetidin-2-one;[2R-[2α(R*),3β(R*)] ]-3-[1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]-α-methl-4-oxo-2-azetidineacetic acid;(R)-2-((2S,3S)-3-((R)-1-(TERT-BUTYLDIMETHYLSILYLOXY)ETHYL)-4-OXOAZETIDIN-2-YL)PROPANOIC ACID;side chain for imipenem;4-BMA;(3S,4S)-4-[(R)-1-carboxyethyl]-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-2-azetidinone;(3S 4S)-3-[(R)-1-(T-BUTYLDIMETHYLSILYLOXY)ETHYL]-4-[(R)-1-CARBOXYETHYL]-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;(3S,4S)-3-[(R)-(BUTYLDIMETHYLSILYLOXY)ETHYL]-4-[(R)-CARBOXYETHYL]-2-AZETIDINONE;4-BMA(for Meropenem);4BMA;(2R)-2-{(2S,3S)-3-[(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}ethyl]-4-oxoazetidin-2-yl}propanoic acid;

Molecular Structure: