90026-29-2

Upstream product

• 86279-95-0 (E)-4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-but-2-enoic acid 4-nitro-benzyl ester 
• 86279-89-2 (3S,4S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-iodomethyl-azetidin-2-one 
• 86279-91-6 (3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-((E)-4-iodo-but-2-enyl)-azetidin-2-one 
• 90024-54-7 (E)-4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-but-2-enal 
• 86279-93-8 (E)-4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-but-2-enoic acid 
• 86279-90-5 (3S,4R)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-[2-(4,5-dihydro-thiazol-2-ylsulfanyl)-but-3-enyl]-azetidin-2-one 
• 84362-42-5 <3S-<3α(S^*),4β>>-3-(1-t-butyldimethylsilyloxyethyl)-4-iodomethyl-2-azetidinone 

Downstream Products

• 75363-99-4 4-nitrobenzyl (2R,5R,6S)-6-[(1R)-1-hydroxyethyl]-3,7-dioxo-1-azabicyclo[3.2.0]heptane-2-carboxylate 
• 74288-39-4 (3S,4R)-3-[(R)-1-hydroxyethyl)-4-[3-(4-nitrobenzyl)oxycarbonyl-2-oxo-3-diazopropyl]azetidin-2-one 
• 75321-07-2 (3S,4R)-3-[(R)-1-hydroxyethyl]-4-[3-(4-nitrobenzyl)-oxycarbonyl-2-oxopropyl]azetidin-2-one 

Relevant academic research and scientific papers

FROM PENICILLIN TO PENEM AND CARBAPENEM. SYNTHESIS OF 2-OXOCARBAPENAM DERIVATIVE

Previously obtained 4-iodomethylazetidinone derivative (2a) is transformed via the trans-iodopropenylation method into the β-keto ester (8), which is thought to be an important precursor for the synthesis of the carbapenem derivatives.