72245-82-0

Upstream product

• 74560-12-6 2-((2R,3R)-3-Amino-2-chloro-4-oxo-azetidin-1-yl)-3-methyl-but-2-enoic acid benzyl ester; compound with toluene-4-sulfonic acid 
• 72217-18-6 2-((R)-3-Amino-2-chloro-4-oxo-azetidin-1-yl)-3-methyl-but-2-enoic acid benzyl ester; compound with toluene-4-sulfonic acid 
• 74560-19-3 (6R,7S)-8-Oxo-7-(2-phenoxy-acetylamino)-5-oxa-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzyl ester 
• 74560-14-8 benzyl 2-[2-oxo-3β-phenoxyacetamido-4β-(2-phenoxyacetoxyethoxy)azetidin-1-yl]-3-methyl-2-butenoate 
• 74560-17-1 benzyl 2-triphenylphosphoranylidene-2-[2-oxo-3β-phenoxyacetamido-4β-(2-phenoxyacetoxyethoxy)azetidin-1-yl]acetate 
• 74560-18-2 benzyl 2-triphenylphosphoranylidene-2-[2-oxo-3β-phenoxyacetamido-4β-(2-hydroxyethoxy)azetidin-1-yl]acetate 
• 72217-26-6 benzyl 2-[2-oxo-3β-phenoxyacetamido-4β-(2-phenoxyacetoxyethoxy)azetidin-1-yl]glycolate 
• 72217-27-7 benzyl 2-chloro-2-[2-oxo-3β-phenoxyacetamido-4β-(2-phenoxyacetoxyethoxy)azetidin-1-yl]acetate 
• 74560-15-9 benzyl 2-[2-oxo-3β-phenoxyacetamido-4β-(2-phenoxyacetoxyethoxy)azetidin-1-yl]glyoxylate 
• 74280-93-6 1,2-secopenicillin tosylate 
• 72217-21-1 2-[(S)-3-Amino-2-(2-hydroxy-ethoxy)-4-oxo-azetidin-1-yl]-3-methyl-but-2-enoic acid benzyl ester 
• 68403-37-2 2-(2-formamidothiazol-4-yl)-2-(propargyloxyimino)acetic acid 
• 74560-20-6 (6R,7S)-7-Amino-8-oxo-5-oxa-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzyl ester 

Relevant academic research and scientific papers

Synthesis and Antibacterial Activity of New 1-Oxa-1-dethiacephalosporins

A series of 3-(deacetoxymethyl)-1-oxa-1-dethiacephalosporins (1) bearing the 7-(α-alkoxyimino)acyl side chain were synthesized and their antibacterial properties were examined in comparison with that of FK-749 (2). (Z)-2-(Ethoxyimino)-2-(2-aminothiazol-4-