2-氰乙基N,N-二异丙基氯亚磷酰胺 、
N-(9-{(2R,4S,5R)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-[(2R,3S,5R)-3-hydroxy-5-(4-hydroxy-5-methyl-2-oxo-2H-pyrimidin-1-yl)-tetrahydro-furan-2-ylmethoxymethoxy]-tetrahydro-furan-2-yl}-6-oxo-6,9-dihydro-1H-purin-2-yl)-isobutyramide 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以18%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-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxymethoxy]oxolan-2-yl]-6-oxo-1H-purin-2-yl]-2-methylpropanamide