2-氰乙基N,N-二异丙基氯亚磷酰胺 、
acetic acid 3-acetoxy-2-acetoxymethyl-6-(1-{5-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-tetrahydro-furan-2-yl}-2,4-dioxo-1,2,3,4-tetrahydro-pyrimidin-5-ylmethoxy)-5-(2,2,2-trifluoro-acetylamino)-tetrahydro-pyran-4-yl ester 在
N,N-二异丙基乙胺 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以88%的产率得到[(2R,3S,4R,5R,6R)-3,4-diacetyloxy-6-[[1-[(2R,4S,5R)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-4-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyoxolan-2-yl]-2,4-dioxopyrimidin-5-yl]methoxy]-5-[(2,2,2-trifluoroacetyl)amino]oxan-2-yl]methyl acetate