738618-18-3

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-,1-[[(cyclohexyloxy)carbonyl]oxy]ethyl ester, (4R,5S,6S)-