1-[(2S,3R,4S,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-(tert-butyl-dimethyl-silanyloxy)-3-hydroxy-tetrahydro-furan-2-yl]-1H-pyrimidine-2,4-dione 生成 1-O-[(2S,3R,4R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[tert-butyl(dimethyl)silyl]oxy-2-(2,4-dioxopyrimidin-1-yl)oxolan-3-yl] 4-O-(2,3,4,5,6-pentachlorophenyl) butanedioate