738618-10-5

1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,6-[(1R)-1-hydroxyethyl]-3-[[4-(methoxycarbonyl)-5-thiazolyl]thio]-4-methyl-7-oxo-, (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl ester, (4R,5S,6S)-