2,3,4-tri-O-acetyl-6-O-(2-O-levulinoyl-3,4,6-tri-O-acetyl-β-D-glucopyranosyl)-α-D-galactopyranosyl bromide 在
氰化汞 、
乙酰丙酮 、 mercury dibromide 作用下,
以
吡啶 、
溶剂黄146 、
乙腈 为溶剂,
反应 20.0h,
生成 methyl 2-O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-3,4-O-isopropylidene-6-O-<2,3,4-tri-O-acetyl-6-O-(3,4,6-tri-O-acetyl-β-D-glucopyranosyl)-β-D-galactopyranosyl>-α-D-galactopyranoside