英文名称
prop-2-enyl 2-[(2R,3S)-3-[(1R)-1-hydroxyethyl]-2-[2-(4-methylphenyl)-2-oxoethyl]-4-oxoazetidin-1-yl]-2-(triphenyl-lambda5-phosphanylidene)acetate;prop-2-enyl (5R,6S)-3-(4-methylphenyl)-7-oxo-6-[(1R)-1-trimethylsilyloxyethyl]-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate