2-氰乙基N,N-二异丙基氯亚磷酰胺 、
4-<1,2-dideoxy-1-(N2-isobutyrylguanin-9-yl)-β-D-ribofuranuronamido>-O-(4,4'-dimethoxytrityl)ethanol 在
N,N-二异丙基乙胺 作用下,
以82%的产率得到3-O-(P-β-cyanoethoxy-N,N-diisopropylaminophosphinyl)-4-<1,2-dideoxy-1-(N
2-isobutyrylguanin-9-yl)-β-D-ribofuranuronamido>-O-(4,4'-dimethoxytrityl)ethanol