429664-20-0

1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,6-[(1R)-1-hydroxyethyl]-3-[[1-[4-[[(2-hydroxyethyl)methylamino]carbonyl]-2-thiazolyl]-3-azetidinyl]thio]-4-methyl-7-oxo-, monosodium salt,(4R,5S,6S)-