777061-77-5

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