78560-93-7

Upstream product

• 91615-32-6 (Z)-3-{(2R,3S)-1-[Chloro-(2-oxo-propoxycarbonyl)-methyl]-3-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-2-ylsulfanyl}-acrylic acid methyl ester 
• 78560-88-0 (Z)-3-{(2R,3S)-1-[Hydroxy-(2-oxo-propoxycarbonyl)-methyl]-3-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-2-ylsulfanyl}-acrylic acid methyl ester 
• 73845-21-3 acetonyl threo-trans-6-(α-p-nitrobenzyloxycarbonyloxyethyl)penem-3-carboxylate 
• 73845-18-8 threo-trans-3-(α-p-nitrobenzyloxycarbonyloxyethyl)-4-(β-hydroxyethylsulfonyl)azetidin-2-one 
• 73845-19-9 threo-trans-3-(α-p-nitrobenzyloxycarbonyloxyethyl)-4-(cis-β-carbomethoxyvinylmercapto)azetidin-2-one 
• 73845-23-5 acetonyl threo-trans-6-(α-hydroxyethyl)penem-3-carboxylate 
• 73845-20-2 acetonyl 2--2-triphenylphosphoranylidene acetate 
• 73845-17-7 2,2-dimethyl-trans-8-(α-p-nitrobenzyloxycarbonyloxyethyl)-9-oxo-3-oxa-6-thia-1-azabicyclo<5.2.0^1,7>nonane 6-dioxide 
• 73845-16-6 2,2-dimethyl-trans-8-(α-p-nitrobenzyloxycarbonyloxyethyl)-9-oxo-3-oxa-6-thia-1-azabicyclo<5.2.0^1,7>nonane 
• 73845-15-5 2,2-dimethyl-trans-8-(α-hydroxyethyl)-9-oxo-3-oxa-6-thia-1-azabicyclo<5.2.0^1,7>nonane 
• 91738-55-5 Sodium; (5R,6S)-6-((R)-1-hydroxy-ethyl)-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylate 
• 91615-32-6 (Z)-3-{(2R,3S)-1-[Chloro-(2-oxo-propoxycarbonyl)-methyl]-3-[(S)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-2-ylsulfanyl}-acrylic acid methyl ester 
• 78560-88-0 (Z)-3-{(2R,3S)-1-[Hydroxy-(2-oxo-propoxycarbonyl)-methyl]-3-[(S)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-2-ylsulfanyl}-acrylic acid methyl ester 
• 73845-21-3 acetonyl erythro-trans-6-(α-p-nitrobenzyloxycarbonyloxyethyl)penem-3-carboxylate 

Relevant academic research and scientific papers

The Penems, a New Class of β-Lactam Antibiotics. 5. Total Synthesis of Racemic 6-α-Hydroxyethylpenemcarboxylic Acids

The novel racemic threo-trans-6-α-hydroxyethylpenem-3-carboxylic acid 3t and its erythro-trans isomer 3e have been prepared over 13 steps from acetoxyazetidinone 4.