3'-azido-2',3',5'-trideoxy-5'-(trimethylsilyl)ethynylthymidine 、
3'-O-benzoyl-2',5'-dideoxy-5'-ethynylthymidine 在
copper(I) bromide dimethylsulfide complex 作用下,
以
四氢呋喃 为溶剂,
反应 15.0h,
以82%的产率得到(2R,3S,5R)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-((1-((2R,3S,5R)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-2-(3-(trimethylsilyl)prop-2-yn-1-yl)tetrahydrofuran-3-yl)-1H-1,2,3-triazol-4-yl)methyl)tetrahydrofuran-3-yl benzoate