O-(methyl 4-O-(6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-α-D-glucopyranosyl)-3-O-benzyl-2-O-pivaloyl-L-idopyranosyluronate)trichloroacetimidate 、
methyl (N-benzyloxycarbonyl-2-aminoethyl 4-O-(6-O-acetyl-2-azido-3-O-benzyl-2-deoxy-α-D-glucopyranosyl)-3-O-benzyl-2-O-pivaloyl-α-L-idopyranoside)uronate 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
反应 0.33h,
以48%的产率得到N-benzyloxycarbonyl-2-aminoethyl-O-(6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-α-D-glucopyranosyl)(1->4)-O-(methyl 3-O-benzyl-2-O-pivaloyl-α-L-idopyranosyluronate)(1->4)-O-(6-O-acetyl-2-azido-3-O-benzyl-2-deoxy-α-D-glucopyranosyl)(1->4)methyl 3-O-benzyl-2-O-pivaloyl-α-L-idopyranosiduronate