738617-60-2

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