3-azidopropane-1-sulfonyl chloride 、
5`-O-三苯甲基-2`-脱氧-Β-D-LYXO喃糖基胸腺嘧啶 在
silver trifluoromethanesulfonate 水 、
乙酸乙酯 、
Sodium sulfate-III 作用下,
以
吡啶 为溶剂,
反应 12.0h,
以to give (2R,3R,5R)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-(trityloxymethyl)tetrahydrofuran-3-yl 3-azidopropane-1-sulfonate (450 mg, 85%) as an oil的产率得到(2R,3R,5R)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-(trityloxymethyl)tetrahydrofuran-3-yl 3-azidopropane-1-sulfonate