4-O-acetyl-3,6-di-O-benzyl-2-(benzyloxycarbonyl)amino-2-deoxy-1-O-trichloroacetimidoyl-α-D-glucopyranose 、 tert-butyldimethylsilyl 3,6-di-O-benzyl-2-deoxy-2-trichloroacetamido-β-D-glucopyranoside 在
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以70%的产率得到tert-butyldimethylsilyl 4-O-acetyl-3,6-di-O-benzyl-2-(benzyloxycarbonyl)amino-2-deoxy-β-D-glucopyranosyl-(1->4)-3,6-di-O-benzyl-2-deoxy-2-trichloroacetamido-β-D-glucopyranoside