2-氰乙基N,N-二异丙基氯亚磷酰胺 、
N-(9-fluorenylmethoxycarbonyl)-(2R)-(2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-(4S)-hydroxy-(5R)-(dimethoxytrityl-hydroxymethyl)-pyrrolidine 在
N,N-二异丙基乙胺 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
以88%的产率得到N-(9-fluorenylmethoxycarbonyl)-(4S)-O-((β-cyanoethyl-N,N'-diisopropylphosphoramidite)oxy)-(5R)-(dimethoxytrityl-hydroxymethyl)-(2R)-(2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)-pyrrolidine