402955-37-7

(4R,5S,6S)-3-[[(3S,5S)-5-[[(3-Carboxyphenyl)amino]carbonyl]-1-[[(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-en-2-yl]carbonyl]-3-pyrrolidinyl]thio]-6-[(1R