2-氰乙基N,N-二异丙基氯亚磷酰胺 、
1-{5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[tris(1-methylethyl)silyl]-β-D-ribofuranosyl}-4-[(diphenylcarbamoyl)oxy]-N6(phenoxyacetyl)-1H-imidazo[4,5-c]pyridin-6-amine 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以75%的产率得到1-[5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-O-[tris(1-methylethyl)silyl]-β-D-ribofuranosyl]-4-[(diphenylcarbamoyl)oxy]-N
6-(phenoxyacetyl)-1H-imidazo[4,5-c]pyridin-6-amine 3'-(2-cyanomethyl diisopropylphoshoramidite)