[(2R,3R,4R,5R)-4-benzoyloxy-5-(2,4-dioxopyrimidin-1-yl)-2-[[methyl-[2-[(2R,3S,4R,5R,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]ethoxy]phosphinothioyl]oxymethyl]oxolan-3-yl] benzoate 生成 1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-[[methyl-[2-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]ethoxy]phosphinothioyl]oxymethyl]oxolan-2-yl]pyrimidine-2,4-dione