4,4'-双甲氧基三苯甲基氯 、
3'-deoxy-N6-<2-(4-nitrophenyl)ethoxycarbonyl>adenosine 以
吡啶 为溶剂,
反应 24.0h,
以76%的产率得到(9-{(2R,3R,5S)-5-[Bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-3-hydroxy-tetrahydro-furan-2-yl}-9H-purin-6-yl)-carbamic acid 2-(4-nitro-phenyl)-ethyl ester