60771-27-9

Einecs 262-423-9 (2R,6β)-3-Methylene-2β-[[(4-nitrophenyl)methoxy]carbonyl]-8-oxo-7α-[(phenoxyacetyl)amino]-5-thia-1-azabicyclo[4.2.0]octane5-oxide 4-nitrobenzyl [2R-(2alpha,5beta,6alpha,7beta)]-3-methylene-8-oxo-7-(phenoxyacetamido)-5-thia-1-azabicyclo[4.2.0]octane-2-carboxylate 5-oxide 4-nitrobenzyl (2r-(2alpha,5beta,6alpha,7beta))-3-methylene-8-oxo-7-(phenoxyacetamido)-5-thia-1-azabicyclo(4.2.0)octane-2-carboxylate 5-oxide 5-Thia-1-azabicyclo[4.2.0]octane-2-carboxylic acid, 3-methylene-8-oxo-7-[(phenoxyacetyl)amino]-, (4-nitrophenyl)methyl ester, 5-oxide, (2R,5S,6R,7R)-