6-N-[(di-n-butylamino)methylene]-3'-[(2S)-2-(N-(9-fluorenyl)methoxycarbonylamino)-4-(dialloxyphosphoryl)butyrylamino]-3'-deoxy-5'-O-(4,4'-dimethoxytrityl)-β-D-adenosine 、 adipic acid pentafluorophenyl ester 在
吡啶 、
4-二甲氨基吡啶 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 1.0h,
以41%的产率得到6-N-[(di-n-butylamino)methylene]-3'-[(2S)-2-(N-(9-fluorenyl)methoxycarbonylamino)-4-(dialloxyphosphoryl)butyrylamino]-3'-deoxy-5'-O-(4,4'-dimethoxytrityl)-2'-O-[1,6-dioxo-6-(pentafluorophenyloxy)hexyl]-β-D-adenosine