1-[(2R,3R,4S,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-3-hydroxy-4-(tetrahydro-pyran-2-yloxy)-tetrahydro-furan-2-yl]-1H-pyrimidine-2,4-dione 生成 3-[[(2R,3R,4R,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-2-(2,4-dioxopyrimidin-1-yl)-4-(oxan-2-yloxy)oxolan-3-yl]oxy-[di(propan-2-yl)amino]phosphanyl]oxypropanenitrile