89435-82-5

Upstream product

• 100-39-0 benzyl bromide 
• 31925-12-9 2-((2R,3R)-3-Amino-2-methylsulfanyl-4-oxo-azetidin-1-yl)-3-methyl-but-2-enoic acid benzyl ester 

Downstream Products

• 89435-84-7 2-((2R,3R)-3-{Benzyl-[2-(4-nitro-benzyloxycarbonyl)-acetyl]-amino}-2-methylsulfanyl-4-oxo-azetidin-1-yl)-3-methyl-but-2-enoic acid benzyl ester 
• 89435-86-9 (1S,5S)-2-Benzyl-6-(1-benzyloxycarbonyl-2-methyl-propenyl)-4-methylsulfanyl-3,7-dioxo-2,6-diaza-bicyclo[3.2.0]heptane-4-carboxylic acid 4-nitro-benzyl ester 
• 89435-87-0 (1S,5S)-2-Benzyl-4-methanesulfonyl-3,7-dioxo-2,6-diaza-bicyclo[3.2.0]heptane-4-carboxylic acid 4-nitro-benzyl ester 

Relevant academic research and scientific papers

STUDIES ON THE SYNTHESIS OF CARBAPENEM ANTIBIOTICS. STEREOSELECTIVE SYNTHESIS OF A POTENTIAL INTERMEDIATE FOR 6-AMIDOCARBAPENEM ANTIBIOTICS

Stereoselective carbon-introducing reaction at the C4 position of an azetidinone has been achieved by the application of an intramolecular carbene reaction as a key step.