2-(trimethylsilyl)ethyl (methyl 3,5-dideoxy-8,9-O-isopropylidene-5-trifluoroacetamido-D-glycero-α-D-galacto-2-nonulopyranosylonate)-(2->6)-3,4-di-O-benzyl-2-O-p-methoxybenzyl-β-D-glucopyranoside 、
乙酸酐 在
吡啶 作用下,
反应 2.0h,
以96%的产率得到2-(trimethylsilyl)ethyl (methyl 4,7-di-O-acetyl-3,5-dideoxy-8,9-O-isopropylidene-5-trifluoroacetamido-D-glycero-α-D-galacto-2-nonulopyranosylonate)-(2->6)-3,4-di-O-benzyl-2-O-p-methoxybenzyl-β-D-glucopyranoside