4-pentenyl (methyl 2-O-acetyl-3-O-benzyl-4-O-levulinoyl-α-L-idopyranosyluronate)-(1-4)-(6-O-acetyl-2-azido-3-O-benzyl-2-deoxy-α-D-glucopyranosyl)-(1-4)-(methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyluronate)-(1-4)-(6-O-acetyl-2-azido-3-O-benzyl-2-deoxy-α-D-glucopyranosyl)-(1-4)-(methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyluronate)-(1-4)-6-O-acetyl-3-O-benzyl-2-deoxy-2-[(benzyloxy)carbonyl]amino-β-D-glucopyranoside 在
乙酸肼 作用下,
以
乙醇 、
甲苯 为溶剂,
反应 1.17h,
以96%的产率得到4-pentenyl (methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyluronate)-(1-4)-(6-O-acetyl-2-azido-3-O-benzyl-2-deoxy-α-D-glucopyranosyl)-(1-4)-(methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyluronate)-(1-4)-(6-O-acetyl-2-azido-3-O-benzyl-2-deoxy-α-D-glucopyranosyl)-(1-4)-(methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyluronate)-(1-4)-6-O-acetyl-3-O-benzyl-2-deoxy-2-[(benzyloxy)carbonyl]-amino-β-D-glucopyranoside