77821-71-7

Upstream product

• 14371-10-9 (E)-3-phenylpropenal 
• 79006-98-7 (2R,3S)-3-hydroxy-1-(4-nitrobenzyloxy)-1-oxobutan-2-ammonium 4-methylbenzenesulfonate 
• 78963-69-6 p-nitrobenzyl-D-threonine 

Downstream Products

• 77821-70-6 cis-1-(1-p-Nitrobenzyloxycarbonyl-2-hydroxypropyl)-3-(1-methyl-2-methoxycarbonylvinylamino)-4-styrylazetidine-2-one 
• 82730-04-9 (2R,3R)-2-[(3S,4R)-3-Azido-2-oxo-4-((E)-styryl)-azetidin-1-yl]-3-hydroxy-butyric acid 4-nitro-benzyl ester 
• 82730-05-0 (2R,3R)-2-[(3R,4S)-3-Azido-2-oxo-4-((E)-styryl)-azetidin-1-yl]-3-hydroxy-butyric acid 4-nitro-benzyl ester 
• 143061-84-1 cis-1-(1-p-nitrobenzyloxycarbonyl-2-hydroxypropyl)-3-(N-α-methyl-β-carbomethoxyvinyl)-4-styryl-azetidin-2-one 
• 143061-85-2 cis-1-(1-p-nitrobenzyloxycarbonyl-2-hydroxypropyl)-3-(N-α-methyl-β-carbomethoxyvinyl)-4-styryl-azetidin-2-one 
• 80024-26-6 cis-3-(phenoxyacetamido)-4-styrylazetidin-2-one 
• 82730-18-5 cis-1-<1-<<(p-nitrobenzyl)oxy>carbonyl>-2-mesylpropenyl>-3-phenoxyacetamido-4-styryl-2-azetidinone 
• 82730-17-4 cis-1-<1-<<(p-nitrobenzyl)oxy>carbonyl>-2-hydroxypropenyl>-3-phenoxyacetamido-4-styryl-2-azetidinone 
• 78905-33-6 cis-1-<1-<<(p-nitrobenzyl)oxy>carbonyl>-2-hydroxypropyl>-3-(phenoxyacetamido)-4-styrylazetidin-2-one 
• 78905-32-5 (2S,3S)-2-[(3S,4R)-3-Amino-2-oxo-4-((E)-styryl)-azetidin-1-yl]-3-hydroxy-butyric acid 4-nitro-benzyl ester 
• 78905-28-9 cis-3-azido-2-oxo-4-(2-phenylethenyl)-1-azetidine 
• 82730-15-2 (3R,4S)-3-Amino-4-((E)-styryl)-azetidin-2-one 

Relevant academic research and scientific papers

Stereoregulated synthesis of β-lactams from schiff bases derived from threonine esters

A variety of optically active 3-substituted-2-azetidinones has been prepared by the annelation of Schiff bases derived from cinnamaldehyde and D-threonine esters and their absolute configuration determined. When the β-hydroxyl group of threonine is unprot

N-Unsubstituted β-Lactams from β-Hydroxy-α-amino Acids. Facile Preparation of Intermediates for Isocephalosporins

A facile method has been devised for the synthesis of N-unsubstituted β-lactams.The cis-azido β-lactam (13) obtained by the reaction of azidoacetyl chloride and the Schiff base (10), derived from cinnamaldehyde and a threonine ester, is subjected to contr