1,2,3,4-tetra-O-acetyl-6-O-<2,3,4-tri-O-acetyl-6-O-<2,3,4-tri-O-acetyl-6-O-(2,3,4-tri-O-acetyl-β-D-glucopyranosyl)-β-D-glucopyranosyl>-β-D-glucopyranosyl>-β-D-glucopyranose 在
溴化钛(IV) 作用下,
以
氯仿 为溶剂,
反应 0.08h,
以43%的产率得到2,3,4-tri-O-acetyl-6-O-<2,3,4-tri-O-acetyl-6-O-<2,3,4-tri-O-acetyl-6-O-(2,3,4-tri-O-acetyl-β-D-glucopyranosyl)-β-D-glucopyranosyl>-β-D-glucopyranosyl>-α-D-glucopyranosyl bromide