777062-12-1

1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,3-[3-amino-4-[2-oxo-2-[(4-pyridinylmethyl)amino]ethyl]phenyl]-6-[(1R)-1-hydroxyethyl]-7-oxo-, monosodium salt, (5R,6S)-