英文名称
(4-nitrobenzoyl) (5R,6S)-3-(4-carbamoyloxyphenyl)-6-[(1R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate;(4-nitrobenzoyl) (5R,6R)-3-(4-carbamoyloxyphenyl)-7-oxo-6-propan-2-yl-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate;(4-nitrobenzoyl) (5R,6R)-3-(4-hydroxyphenyl)-7-oxo-6-propan-2-yl-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate