(6R-trans)-3-methyl-8-oxo-7-(phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Phenylacetyl 7-aminodesacetoxycephalosporanic acid

(6R-trans)-3-Methyl-8-oxo-7-(phenylacetamido)-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid

5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 3-methyl-8-oxo-7-((phenylacetyl)amino)-, (6R-trans)-

(6R,7R)-3-methyl-8-oxo-7-[(phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

(6S,7S)-3-methyl-8-oxo-7-[(phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

(6R-trans)-3-Methyl-8-oxo-7-(phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

7-Phenyl-acetamido-deacetoxy-cephalosporanic-acid

(6R-trans)-3-Methyl-8-oxo-7-(phenylacetamido)-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid

5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 3-methyl-8-oxo-7-((phenylacetyl)amino)-, (6R-trans)-

(6R,7R)-3-methyl-8-oxo-7-[(phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-en