2-氰乙基N,N-二异丙基氯亚磷酰胺 、
(+)-(1'S,3'S,4'R,6'S)-1-<4'-(4,4'-Dimethoxytrityloxymethyl)-6'-fluoro-3'-hydroxycyclopentyl>thymine 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 0.75h,
以79%的产率得到(1'S,3'S,4'R,6'S)-1-<3'-<2-Cyanoethyl(diisopropylamino)phosphinoyloxy>-4'-(4,4'-dimethoxytrityloxymethyl)-6'-fluorocyclopentyl>thymine