4-methoxybenzyl-2-pyridylthio carbonate 、
O3'-benzoyl-5,2'-dibromo-2'-deoxy-uridine 在
silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
反应 0.83h,
以80%的产率得到Benzoic acid (2R,3R,4R,5R)-4-bromo-5-(5-bromo-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-2-(4-methoxy-benzyloxymethyl)-tetrahydro-furan-3-yl ester