2-((4-NITROPHENYL)METHYL) (4R,5S,6S)-3-(((3S,5S)-5-(((3-CARBOXYPHENYL)AMINO)CARBONYL)-3-PYRROLIDINYL)THIO)-6-((1R)-1-HYDROXYETHYL)-4-METHYL-7-OXO-1-AZABICYCLO(3.2.0)HEPT-2-ENE-2-CARBOXYLATE
2-((4-nitrophenyl)methyl) (4r,5s,6s)-3-(((3s,5s)-5-(((3-carboxyphenyl)amino)carbonyl)-3-pyrrolidinyl)thio)-6-((1r)-1-hydroxyethyl)-4-methyl-7-oxo-1-azabicyclo(3.2.0)hept-2-ene-2-carboxylate