2-氰乙基N,N-二异丙基氯亚磷酰胺 、
4-diphenylacetylamino-1-(5'-4,4'-dimethoxytrityl-2'-deoxy-β-D-erythro-pentofuranosyl)-2-pyridone 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以35%的产率得到4-diphenylacetylamino-1-(5'-4,4'-dimethoxytrityl-3'-cyanoethyl-N,N-diisopropylphosphoramidite-2'-deoxy-β-D-erythro-pentofuranosyl)-2-pyridone