phenyl [2-(trimethylsilyl)ethyl 3,4-di-O-benzyl-2-O-benzoyl-β-D-galactopyrosyluronate]-(1->4)-2-deoxy-2-tetrachlorophthalimido-1-thio-β-D-glucopyranoside S-oxide 、 phenyl {3-O-acetyl-2-deoxy-6-O-p-methoxybenzyl-2-tetrachlorophthalimido-β-D-glucopyranosyl-(1->2)-[2-(trimethylsilyl)ethyl 4-C-methyl-3-O-phenoxycarbonyl-β-D-glucopyranosid]} uronate 在
2,6-二叔丁基-4-甲基吡啶 、
甲基丁香酚 、
三氟甲磺酸酐 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以50%的产率得到phenyl {[2-(trimethylsilyl)ethyl 2-O-benzoyl-3,4-di-O-benzyl-y-5-D-galactopyranosyluronate]-(1-4)-2,6-dideoxy-2-tetrachlorophthalimido-β-D-glucopyranosyl-(1-4)-3-O-acetyl-2-deoxy-6-O-p-methoxybenzyl-2-tetrachlorophthalimido-β-D-glucopyranosyl-(1-2)-[2-(trimethylsilyl)ethyl 4-C-methyl-3-O-phenoxycarbonyl-β-D-glucopyranosid]}uronate