738618-21-8

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