N6-benzoyl-9-(2',3'-di-O-acetyl-β-D-ribofuranosyl)adenine 、
3',5'-O-(1,1,3,3,-tetraisopropyldisiloxane-1,3-diyl)-N(6)-benzoyladenosine-2' (2-chlorophenyl) phosphate triethylammonium salt 在
吡啶 、
苯甲基-2-磺酰三硝基三氮唑 作用下,
反应 1.0h,
以90%的产率得到(2R,3R,4R,5R)-2-(6-benzamido-9H-purin-9-yl)-5-((((((6aR,8R,9R,9aR)-8-(6-benzamido-9H-purin-9-yl)-2,2,4,4-tetraisopropyltetrahydro-6H-furo[3,2-f][1,3,5,2,4]trioxadisilocin-9-yl)oxy)(2-chlorophenoxy)phosphoryl)oxy)methyl)tetrahydrofuran-3,4-diyl diacetate