90628-97-0

Upstream product

• 65750-59-6 2-(4-nitrobenzyloxycarbonylamino)ethanethiol 
• 90628-93-6 3(S)-<1(R)-<(tert-butyldimethylsilyl)oxy>ethyl>-4(R)-<<(phenylthio)carbonyl>methyl>azetidin-2-one 
• 88669-70-9 (3S,4R)-3-<(1R)-1-<(tert-Butyldimethylsilyl)oxy>ethyl>-4-(carboxymethyl)azetidin-2-one 
• 90629-36-0 3(S)-<1(R)-<(tert-butyldimethylsilyl)oxy>ethyl>-4(S)-<(phenylthio)ethynyl>azetidin-2-one 
• 99765-26-1 3(S)-<1(R)-<(tert-butyldimethylsilyl)oxy>ethyl>-4(R)-<(2,5-dimethoxyphenyl)sulfonyl>azetidin-2-one 
• 99765-25-0 3(S)-<1(R)-<(tert-butyldimethylsilyl)oxy>ethyl>-4(R)-<(2,5-dimethoxyphenyl)sulfonyl>-1-<1-(methoxycarbonyl)-2-methyl-1-propen-1-yl>azetidin-2-one 
• 99765-24-9 3(S)-<1(R)-<<(phenoxymethyl)carbonyl>oxy>ethyl>-4(R)-<(2,5-dimethoxyphenyl)sulfonyl>-1-<1-(methoxycarbonyl)-2-methyl-1-propen-1-yl>azetidin-2-one 
• 99827-42-6 3(S)-<1(S)-hydroxyethyl>-4(R)-<(2,5-dimethoxyphenyl)sulfonyl>-1-<1-(methoxycarbonyl)-2-methyl-1-propen-1-yl>azetidin-2-one 
• 99827-43-7 3(S)-<1(R)-hydroxyethyl>-4(R)-<(2,5-dimethoxyphenyl)sulfonyl>-1-<1-(methoxycarbonyl)-2-methyl-1-propen-1-yl>azetidin-2-one 
• 76899-07-5 (3R,4R)-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]-4-acetoxyazetidin-2-one 
• 87392-18-5 <3S-<3α(S^*),4β>>-benzyl<3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-yl>acetate 
• 86978-81-6 (3R,4R)-4-acetoxy-3-[(R)-1-(t-butyldimethylsilyloxy)ethyl]-1-trimethylsilyl-2-azetidinone 
• 85253-97-0 (3S,4S)-3-<(R)-1'-(dimethyl-t-butylsilyloxy)ethyl>-4-oxoazetidine-2-carboxylic acid 
• 92686-08-3 <3S-<3α(S^*),4β>>-t-butyl 3-(1-t-butyldimethylsilyloxyethyl)-2-azetidinone-4-carboxylate 

Downstream Products

• 90628-98-1 {(2R,3S)-3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-[2-(4-nitro-benzyloxycarbonylamino)-ethylsulfanylcarbonylmethyl]-4-oxo-azetidin-1-yl}-oxo-acetic acid 4-nitro-benzyl ester 
• 92133-37-4 [(2R,3S)-3-((R)-1-Hydroxy-ethyl)-4-oxo-azetidin-2-yl]-thioacetic acid S-[2-(4-nitro-benzyloxycarbonylamino)-ethyl] ester 
• 64067-13-6 p-nitrobenzyl (5R,6S)-2-<<2-<<<(p-nitrobenzyl)oxy>carbonyl>amino>ethyl>thio>-6-<(R)-1-hydroxyethyl>carbapen-2-em-3-carboxylate 
• 90628-99-2 p-nitrobenzyl (5R,6S)-6-<(R)-1-<(tert-butyldimethylsilyl)oxy>ethyl>-3-<<2-<<<(p-nitrobenzyl)oxy>carbonyl>-amino>ethyl>thio>-7-oxo-1-azabicyclo<3.2.0>hept-2-ene-2-carboxylate 
• 92133-39-6 {(2R,3S)-3-((R)-1-Hydroxy-ethyl)-2-[2-(4-nitro-benzyloxycarbonylamino)-ethylsulfanylcarbonylmethyl]-4-oxo-azetidin-1-yl}-oxo-acetic acid 4-nitro-benzyl ester 
• 92133-46-5 C₃₈H₅₅N₄O₁₄PSSi 
• 90629-18-8 {(2R,3S)-2-[2-(4-Nitro-benzyloxycarbonylamino)-ethylsulfanylcarbonylmethyl]-3-[(R)-1-(4-nitro-benzyloxycarbonyloxy)-ethyl]-4-oxo-azetidin-1-yl}-oxo-acetic acid 4-nitro-benzyl ester 
• 92133-47-6 C₄₀H₄₆N₅O₁₈PS 
• 102735-71-7 (3S,4R)-4-<<2-(p-nitrobenzyloxycarbonylamino)etylthio>carbonylmethyl>-3-<(R)-1-(p-nitrobenzyloxycarbonyloxy)ethyl>-2-azetidinone 
• 72778-09-7 N-<<(p-nitrobenzyl)oxy>carbonyl>-O-<<(p-nitrobenzyl)oxy>carbonyl>thienamycin p-nitrobenzyl ester 

Relevant academic research and scientific papers

AN EFFICIENT CARBAPENEM SYNTHESIS VIA AN INTRAMOLECULAR WITTIG REACTION OF NEW TRIALKOXYPHOSPHORANE-THIOLESTERS

New trialkoxyphosphorane-thiolesters 10, obtained by reaction of oxalimides 9 with trialkyl phosphite, were efficiently cyclized by an intramolecular Wittig reaction to give carbapenems 11.