5-benzyloxymethyl-1-(prop-2-ynyl)pyrimidine-2,4(1H,3H)-dione 、
ethyl 5-(4-azido-1,2,3-trihydroxybutyl)furan-3-carboxylate 在
2,6-二甲基吡啶 、
copper(l) iodide 作用下,
以
叔丁醇 为溶剂,
以94%的产率得到ethyl 5-{(1S,2R,3R)-4-{4-[(5-benzyloxymethyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl]-1H-1,2,3-triazol-1-yl}-1,2,3-trihydroxybutyl}furan-3-carboxylate