777061-58-2

1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid,6-[(1R)-1-hydroxyethyl]-7-oxo-3-[4-(trifluoromethoxy)phenyl]-,(2,2-dimethyl-1-oxopropoxy)methyl ester, (5R,6S)-