1-(2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-fluoro-4'-C-hydroxymethyl-β-D-arabinofuranosyl)thymine 、
4,4'-双甲氧基三苯甲基氯 在
吡啶 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以94.6%的产率得到1-(2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-2'-fluoro-4'-C-[1-O-(4,4'-dimethoxytriphenylmethyl)methyl]-β-D-arabinofuranosyl)thymine