N-(benzyl)-benzyloxycarbonyl-5-aminopentyl O-(methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyluronate)-(1->4)-O-2-azido-3-O-benzyl-6-O-levulinoyl-2-deoxy-α-D-glucopyranoside 、 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 0.5h,
以62%的产率得到N-(benzyl)-benzyloxycarbonyl-5-aminopentyl O-[(methyl 2-O-acetyl-3-O-benzyl-4-O-(9-fluorenylmethoxycarbonyl)-α-L-idopyranosyluronate)-(1->4)-O-(2-azido-3-O-benzyl-2-deoxy-6-O-levulinoyl-α-D-glucopyranoside)-(1->4)-O-(methyl 2-O-acetyl-3-O-benzyl-β-D-glucopyranosyluronate)]-(1->4)-O-2-azido-3-O-benzyl-2-deoxy-6-O-levulinoyl-α-D-glucopyranoside