738618-12-7

1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,3-[[4-[(2-hydroxyethoxy)carbonyl]-5-thiazolyl]thio]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-, 1-[[(cyclohexyloxy)carbonyl]oxy]ethyl ester,(4R,5S,6S)-