(4aS,5R)-6-[[(3S,5S)-5-[[(3-Carboxyphenyl)amino]carbonyl]-3-pyrrolidinyl]thio]-3,4,4a,5-tetrahydro-3,5-dimethyl-1-oxo-1H-pyrrolo[1,2-c][1,3]oxazine-4,7-dicarboxylic acid,(4aS,5R)-6-(((3S,5S)-5-((3-carboxyphenyl)carbamoyl)pyrrolidin-3-yl)thio)-3,5-dimethyl-1-oxo-3,4,4a,5-tetrahydro-1H-pyrrolo[1,2-c][1,3]oxazine-4,7-dicarboxylic acid,Ertapenem