2-氰乙基N,N-二异丙基氯亚磷酰胺 、
N-[9-[(2R,4S,5R)-5-[[(2R,3S,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-5-[2-(2-methylpropanoylamino)-6-oxo-1H-purin-9-yl]oxolan-3-yl]oxymethoxymethyl]-4-hydroxyoxolan-2-yl]-6-oxo-1H-purin-2-yl]-2-methylpropanamide 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以78%的产率得到N-[9-[(2R,4S,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[[(2R,3S,5R)-3-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxy-5-[2-(2-methylpropanoylamino)-6-oxo-1H-purin-9-yl]oxolan-2-yl]methoxymethoxy]oxolan-2-yl]-6-oxo-1H-purin-2-yl]-2-methylpropanamide