methyl (6-O-benzyl-2,3,4-tri-O-methyl-α-D-glucopyranosyl)-(1→4)-(methyl 2-O-acetyl-3-O-methyl-β-D-glucopyranosyluronate)-(1→4)-(2,3,6-tri-O-benzyl-α-D-glucopyranosyl)-(1→4)-(methyl 2-O-acetyl-3-O-methyl-α-L-idopyranosyluronate)-(1→4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 24.0h,
以77%的产率得到methyl (6-O-benzyl-2,3,4-tri-O-methyl-α-D-glucopyranosyl)-(1→4)-(methyl 3-O-methyl-β-D-glucopyranosyluronate)-(1→/4)-(2,3,6-tri-O-benzyl-α-D-glucopyranosyl)-(1→4)-(methyl 3-O-methyl-α-L-idopyranosyluronate)-(1→/4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside