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Structure
Product Name
Trade Name
CAS No.
Application
3-[5-(dimethylcarbamovl) pyrrolidin-2yl]
sulfanyl-6- (1-hydroxyethyl)-4-methyl-7-
oxo-1-azabicyclo[3.2.0] hept-2-ene-2-
carboxylic acid
Meropenem
(non-sterile)
119478-56-7  
(2S,4S)-2-(dimethylaminocarbonyl)-4-
mercapto-1-(p-nitrobenzyloxycarbonyl)
-1-pyrrolidine
Meropenem
side chain
96034-64-9  
3-[5-(dimethylcarbamovl) pyrrolidin-2yl]
sulfanyl-6- (1-hydroxyethyl)-4-methyl-7-
oxo-1-azabicyclo[3.2.0] hept-2-ene-2-
carboxylic acid
Protected
meropenem
96036-02-1  
(4-nitrophenyl)methyl (4R,5R,6S)-3-
diphenoxyphosphoryloxy-6-[(1R)-1-
hydroxyethyl]-4-methyl-7-oxo-1-
azabicyclo[3.2.0]hept-2-ene-2-carboxylate
MAP 90776-59-3 Intermediate
of
Meropenem
(3S, 4R)-4-[3-diazo-1(R)-methyl-3-(p-
nitrobenzyloxy carbonyl)-2-oxopropyl]-3-
[1(R)-hydroxyethyl]azetidin-2-one
P-3 137391-68-5 Intermediate
of
Meropenem
(2R)-2-[(2S,3S)-3-[(1R)-1-[Tert-
butyl(dimethyl)silyl]oxyethyl]-4-
oxoazetidin-2-yl]propanoic acid
4-BMA 90776-58-2 Intermediate
of
Meropenem
(5R,6S)-3-[2-
(aminomethylideneamino)ethylsulfanyl]-6-
[(1R)-1-hydroxyethyl]-7-oxo-1-
azabicyclo[3.2.0]hept-2-ene-2-
carboxylic acid
Imipenem
(non-sterile)
74431-23-5  
(3R,5R,6S)-[(1R-hydroxyethyl)-1-
azedicyclo[3.2.0]-hept-3,
7- dioxo-2-carbontic
acid p-nitrobenzyloxy ester
BCK 77449-43-5 Intermediate
of
Imipenem
(3S,4R)-3-[(1R-)-Hydroxyethyl]-4-[3-(4-
nitrobenzyloxy)carbonyl-2-
oxo-3-diazo-propyl]-azetidin-2-one
BCK-1 74288-39-4 Intermediate
of
Imipenem
(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-
methyl-7-oxo-3-[(3S,5S)-5-
[(sulfamoylamino)methyl]pyrrolidin-3-
yl]sulfanyl-1-azabicyclo[3.2.0]hept-2-
ene-2-carboxylic acid hydrate
Doripenem
(non-sterile)
364622-82-2  
4-Nitrobenzyl(2S,4S)-4-acetylthio-2-[[N-
sulfamoyl-N-(tert-
butoxycarbonyl)amino]methyl]pyrrolidine-1-
carboxylate
Doripenem
Side chain
491878-06-9  
(4R,5S,6S)-3-(6,7-dihydro-5H-pyrazolo
[1,2-a][1,2,4]triazol-8-ium-6-ylsulfanyl)
-6-[(1R)-1-hydroxyethyl]-4-methyl
-7-oxo-1-azabicyclo
[3.2.0]hept-2-ene-2-carboxylate
Biapenem
(non-sterile)
120410-24-4  
6,7-Dihydro-6-mercapto-5H-pyrazolo[1,2-
a][1,2,4]triazolium chloride
Biapenem
Side chain
153851-71-9  
(4R,5S,6S)-3-[(3S,5S)-5-[(3-
carboxyphenyl)carbamoyl]pyrrolidin-3-
yl]sulfanyl-6-(1-hydroxyethyl)-4-methyl-7-
oxo-1-azabicyclo[3.2.0]hept-2-
ene-2-carboxylic acid
Ertapenem
(non-sterile)
153832-46-3  
3-[[[(2S,4S)-4-Mercapto-1-(4-
nitrobenzyloxy)carbonyl-2-
pyrrolidinyl]carbonyl]amino]benzoic acid
Ertapenem
Side chain
202467-69-4  
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