89063-95-6

Upstream product

• 4556-23-4 pyridine-4-thiol 
• 86489-45-4 4-nitrobenzyl (2R,5R,6S)-3,7-dioxo-6-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-azabicyclo[3.2.0]-heptane-2-carboxylate 
• 105995-50-4 magnesium 4-nitrobenzyl malonate 
• 96124-69-5 2-[(R)-2-Allyl-3-(1-hydroxy-1-methyl-ethyl)-4-oxo-azetidin-1-yl]-3-methyl-but-3-enoic acid methyl ester 
• 86489-44-3 4-nitrobenzyl 2-diazo-4-{(2R,3S)-3-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)-ethyl]-4-oxoazetidine-2-yl}-3-oxobutanoate 
• 86489-14-7 2-[(R)-2-Allyl-3-(1-hydroxy-1-methyl-ethyl)-4-oxo-azetidin-1-yl]-3-methyl-but-2-enoic acid methyl ester 
• 86489-14-7 methyl 3-methyl-2-[(3S,4R)-3-(1-hydroxy-1-methylethyl)-2-oxo-4-allylazetidin-1-yl]but-2-enoate 
• 86489-17-0 [(2R,3S)-3-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-4-oxoazetidin-2-yl]-acetic acid 
• 86489-16-9 methyl 3-methyl-2-[(3S,4R)-3-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-2-oxo-4-allylazetidin-1-yl]but-2-enoate 
• 86489-43-2 4-nitrobenzyl 4-[(2R,3S)-3-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-4-oxoazetidin-2-yl]-3-oxobutanoate 
• 7087-68-5 N-ethyl-N,N-diisopropylamine 
• 2524-64-3 chlorophosphoric acid diphenyl ester 

Relevant academic research and scientific papers

1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid derivatives

Compounds of the formula [I] STR1 in which R1 is hydroxy, a protected hydroxy or lower alkoxy group, R2 is carboxy or an easily eliminable esterified carboxy group and R3 is pyridyl, and pharmaceutically acceptable salts t

Synthetic studies on carbapenem antibiotics from penicillins. II. Regio- and stereoselective aldol reaction of a chiral azetidinone: A synthesis of optically active 6-epicarpetimycins

Aldol and alkylation reactions of the chiral 4-allylazetidinone 1 gave 3,4-trans-azetidinones as major products, in which 10 was converted in several steps to the optically active 6-epicarpetimycins 2.