O6-benzyl-3',5'-bis-O-(tert-butyldimethylsilyl)-O2-tris(dimethylamino)phosphonium-2'-deoxyxanthosine hexafluorophosphate 、
4-哌啶酮缩乙二醇 以
乙二醇二甲醚 为溶剂,
反应 24.0h,
以83%的产率得到O6-benzyl-3',5'-bis-O-(tert-butyldimethylsilyl)-2-(1,4-dioxa-8-azaspiro[4.5]dec-8-yl)-2'-deoxyinosine