146383-05-3 5-Thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid, 3-ethenyl-8-oxo-7-((phenylacetyl)amino)-, (2,2-dimethyl-1-oxopropoxy)methyl ester, (6R-trans)- Pivaloyloxymethyl 7-phenylacetamido-3-vinyl-3-cephem-4-carboxylate Pom-pavcc