英文名称
5-O-benzyl 1-O-tert-butyl 4-[3-[4-ethyl-3-[(2-methylpropan-2-yl)oxycarbonyl]-5-oxo-1,3-oxazolidin-4-yl]propanoyl]-2-(phenylmethoxycarbonylamino)pentanedioate;6-methyl-6-[(2-methylpropan-2-yl)oxycarbonylamino]-5-oxo-1,2,3,7,8,8a-hexahydroindolizine-3-carboxylic acid