77448-05-6

Upstream product

• 74819-56-0 p-nitrobenzyl (+/-)-cis-3-<(E)-2-acetamidovinylthio>-6β-<(1S^*)-1-(p-nitrobenzyloxycarbonyloxy)ethyl>-7-oxo-1-azabicyclo<3.2.0>hept-2-ene-2-carboxylate 
• 76335-76-7 (+/-)-4β-carboxymethyl-3β-<(1S^*)-1-(p-nitrobenzyloxycarbonyloxy)ethyl>azetidin-2-one 
• 78072-36-3 (5R,6R)-3-(Diphenoxy-phosphoryloxy)-6-[(S)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-7-oxo-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 77447-99-5 (+/-)-4β-formylmethyl-3β-<(1S^*)-1-(p-nitrobenzyloxycarbonyloxy)ethyl>azetidin-2-one 
• 77447-98-4 (+/-)-4β-(2,2-dimethoxyethyl)-3β-<(1S^*)-1-(p-nitrobenzyloxycarbonyloxy)ethyl>azetidin-2-one 
• 76335-78-9 p-nitrobenzyl (+/-)-cis-6β-<(1S^*)-1-(p-nitrobenzyloxycarbonyloxy)ethyl>-3,7-dioxo-1-azabicyclo<3.2.0>heptane-2-carboxylate 
• 76347-45-0 (+/-)-3β-<(1S^*)-1-(p-nitrobenzyloxycarbonyloxy)ethyl>-4β-(3-p-nitrobenzyloxycarbonyl-2-oxopropyl)azetidin-2-one 
• 72447-85-9 cis-3-(1'R^*-hydroxyethyl-4-(2',2'-dimethoxyethyl))-2-azetidinone 

Relevant academic research and scientific papers

Total Synthesis of (+/-)-Epithienamycins A and B and Derivatives

(+/-)-(3R*,4R*)-4-(2,2-Dimethoxyethyl)-3-*)-1-hydroxyethyl>azetidin-2-one (7), which has been stereoselectively synthesised via the 4-methoxycarbonylisoxazoline (4), was converted into (+/-)-epithienamycins A (2) and B

TOTAL SYNTHESIS OF (+/-)EPITHIENAMYCINS A AND B

(+/-)-3R*-(1'S*-Hydroxyethyl)-4R*-(2',2'-dimethoxyethyl)-2-azetidinone (6), which was obtained from the 4-methoxycarbonylisoxazoline (4) as a major product, was converted into (+/-)-epithienamycins A(2) and B(3) vi