chloro(diethylamino)<2-(4-nitrophenyl)ethoxy>phosphine 、
5'-O-(dimethoxytrityl)-2'-O-methyl-N6-<2-(4-nitrophenyl)ethoxycarbonyl>adenosine 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
以80%的产率得到5'-O-(dimethoxytrityl)-2'-O-methyl-N
6-<2-(4-nitrophenyl)ethoxycarbonyl>adenosine 3'-<2-(4-nitrophenyl)ethyl diethylphosphoramidite>