ethyl [(azidoacetyl)amino]acetate 、
2-propynyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranoside 在
copper(l) iodide 作用下,
以
甲苯 为溶剂,
反应 2.0h,
以95%的产率得到ethyl 2-[[2-[4-[[(2R,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxymethyl]triazol-1-yl]acetyl]amino]acetate