2-氰乙基N,N-二异丙基氯亚磷酰胺 、
[(2R,3S,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl] [(2R,3S,5S)-5-[[5-formamido-6-oxo-2-[[2-(4-propan-2-ylphenoxy)acetyl]amino]-1H-pyrimidin-4-yl]amino]-3-hydroxyoxolan-2-yl]methyl methyl phosphate 在
N,N-二异丙基乙胺 作用下,
以
四氢呋喃 为溶剂,
以52%的产率得到[(2R,3S,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl] [(2R,3S,5S)-3-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxy-5-[[5-formamido-6-oxo-2-[[2-(4-propan-2-ylphenoxy)acetyl]amino]-1H-pyrimidin-4-yl]amino]oxolan-2-yl]methyl methyl phosphate