O-(2,4,6-tri-O-acetyl-3-O-methyl-β-D-glucopyranosyl)-(1->3)-(2,4,6-tri-O-acetyl-α-D-glucopyranosyl) trichloroacetimidate 在
三氟甲磺酸三甲基硅酯 吡啶 、 molecular sieve 、
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
反应 10.92h,
生成 O-2,4,6-tri-O-acetyl-3-O-methyl-β-D-glucopyranosyl-(1->3)-(2,4,6-tri-O-acetyl-β-D-glucopyranosyl)-(1->4)-2-O-acetyl-3-O-benzyl-6-deoxy-α/β-D-glucopyranose