124831-32-9

Upstream product

• 128971-80-2 (3S,4R)-1-(tert-Butyldimethylsilyl)-4-<(2-methyl-3-buten-2-yl)thio>-3-(trimethylsilyl)-2-azetidinone 
• 124831-31-8 (3S,4R)-1-(tert-Butyldimethylsilyl)-4-<(2-methyl-3-oxo-2-propyl)thio>-3-(trimethylsilyl)-2-azetidinone 
• 118577-16-5 ethyl O-benzylnitroethanol 
• 128971-79-9 (3S,4R)-4-<(2-Methyl-3-buten-2-yl)thio>-3-(trimethylsilyl)-2-azetidinone 
• 128971-81-3 (3S,4R)-4-<<4-(Benzyloxy)-3-hydroxy-2-methyl-4-nitro-2-butyl>thio>-1-(tert-butyldimethylsilyl)-3-(trimethylsilyl)-2-azetidinone 

Downstream Products

• 124831-33-0 (2R,5R)-Benzyl 3,3-Dimethyl-7-oxo-4-thia-1-azabicyclo<3.2.0>heptane-2-carboxylate 
• 62263-72-3 (2S,5R)-Benzyl 3,3-Dimethyl-7-oxo-4-thia-1-azabicyclo<3.2.0>heptane-2-carboxylate 
• 69388-78-9 (2S,5R)-Benzyl 3,3-Dimethyl-7-oxo-4-thia-1-azabicyclo<3.2.0>heptane-2-carboxylate 4,4-Dioxide 
• 68373-14-8 sulbactum 

Relevant academic research and scientific papers

STEREOCONTROLLED TOTAL SYNTHESIS OF THE PENICILLINATE ESTER (2S,5R)-BENZYL 3,3-DIMETHYL-7-OXO-4-THIA-1-AZABICYCLOHEPTANE-2-CARBOXYLATE

(3R)-4-Acetoxy-3-trimethylsilyl-2-azetidinone, was converted into optically pure benzyl penicillinate in seven step (22percent) using (benzyloxy)nitromethane as a reagent for ring annulation.