英文名称
2-[4-[2-[(2R,3S)-3-[(1R)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxo-1-[2-oxo-2-prop-2-enoxy-1-(triphenyl-lambda5-phosphanylidene)ethyl]azetidin-2-yl]acetyl]-2-methylphenyl]acetic acid;[2-[4-[2-[(2R,3S)-3-[(1R)-1-[tert-butyl(dimethyl)silyl]oxyethyl]-4-oxo-1-[2-oxo-2-prop-2-enoxy-1-(triphenyl-lambda5-phosphanylidene)ethyl]azetidin-2-yl]acetyl]-2-methylphenyl]acetyl] 4-nitrobenzoate