chloro(diethylamino)<2-(4-nitrophenyl)ethoxy>phosphine 、
3'-O-methyl-5'-O-(monomethoxytrityl)-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77%的产率得到3'-O-methyl-5'-O-(monomethoxytrityl)-N
6-<2-(4-nitrophenyl)ethoxycarbonyl>adenosine 2'-<2-(4-nitrophenyl)ethyl diethylphosphoramidite>