[(2R,3R,4R,5R)-5-[6-[bis[(1,1,1-trichloro-2-methylpropan-2-yl)oxycarbonyl]amino]purin-9-yl]-2-(hydroxymethyl)-4-(oxan-2-yloxy)oxolan-3-yl] (2S)-4-methyl-2-(phenylmethoxycarbonylamino)pentanoate 、 在
2,4,5,6-四甲基苯二磺酸氯 、
3-硝基-1,2,4-三氮唑 作用下,
以
吡啶 为溶剂,
反应 2.0h,
以70%的产率得到[(2R,3R,4R,5R)-2-[[[(2R,3R,4R,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-(oxan-2-yloxy)-5-[2-oxo-4-[(1,1,1-trichloro-2-methylpropan-2-yl)oxycarbonylamino]pyrimidin-1-yl]oxolan-3-yl]oxy-phenylsulfanylphosphoryl]oxymethyl]-5-[6-[bis[(1,1,1-trichloro-2-methylpropan-2-yl)oxycarbonyl]amino]purin-9-yl]-4-(oxan-2-yloxy)oxolan-3-yl] (2S)-4-methyl-2-(phenylmethoxycarbonylamino)pentanoate