2,3,4-tri-O-acetyl-6-azido-6-deoxy-β-D-glucopyranosyl azide 、
propargyl 2,3,4,6-tetra-O-acetyl-1-thio-β-D-galactopyranoside 在
copper(II) sulfate 、
sodium ascorbate 作用下,
以
水 、
N,N-二甲基甲酰胺 为溶剂,
反应 0.75h,
以60%的产率得到[(2R,3S,4S,5R,6S)-3,4,5-triacetyloxy-6-[[1-[[(2R,3R,4S,5R,6R)-3,4,5-triacetyloxy-6-[4-[[(2S,3R,4S,5S,6R)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]sulfanylmethyl]triazol-1-yl]oxan-2-yl]methyl]triazol-4-yl]methylsulfanyl]oxan-2-yl]methyl acetate