1,6-Anhydro-4-O-(2-azido-3-O-benzoyl-6-O-tert-butyldiphenylsilyl-2-deoxy-alpha-D-glucopyranosyl)-2-O-benzoyl-3-O-benzyl-beta-L-idopyranose 、 6-O-acetyl-4-O-[2-azido-3-O-(4-bromobenzyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-4-O-(2-naphthylmethyl)-α-D-glucopyranosyl]-2-O-benzoyl-3-O-benzyl-L-idopyranosyl trichloroacetimidate 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 2.0h,
以83%的产率得到[2-Azido-3-O-(4-bromobenzyl)-6-O-tert-butyldiphenylsilyl-2-deoxy-4-O-(2-naphthylmethyl)-alpha-D-glucopyranosyl]-(1-4)-(6-O-acetyl-2-O-benzoyl-3-O-benzyl-alpha-L-idopyranosyl)-(1-4)-(2-azido-3-O-benzoyl-6-O-tert-butyldiphenylsilyl-2-deoxy-alpha-D-glucopyranosyl)-(1-4)-1,6-anhydro-2-O-benzoyl-3-O-benzyl-beta-L-idopyranose