3-methyl-5-oxo-2,5-dihydrofuran-2-yl 2,2,2-trichloroacetimidate 、 2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-D-glucopyranose 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
以64%的产率得到4-methyl-5-[2,3,6-tri-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-D-glucopyranosyloxy]-5H-furan-2-one