4-Thia-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,6-[(1R)-1-hydroxyethyl]-3-[[(3-nitrobenzoyl)oxy]methyl]-7-oxo-,2-propenyl ester, (5R,6S)-
CAS No. 862429-11-6