5'-O-(4,4'-dimethoxytrityl)-(O3'->S5')dithymidine-O-(2-cyanoethyl)phosphorodithioate 、
双(二异丙基氨基)(2-氰基乙氧基)膦 在
5-(乙硫基)-1H-四唑 作用下,
以
乙腈 为溶剂,
反应 1.25h,
生成 3-[[(2S,3S,5R)-2-[[[(2R,3S,5R)-2-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl]oxy-(2-cyanoethoxy)phosphinothioyl]sulfanylmethyl]-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-3-yl]oxy-[di(propan-2-yl)amino]phosphanyl]oxypropanenitrile