O-(methyl 2,3,4-tri-O-benzyl-α-D-galactopyranosyluronate)-(1->4)-O-(methyl 2,3-di-O-benzyl-α-D-galactopyranosyluronate)-(1->4)- 在
lithium iodide 作用下,
以
吡啶 为溶剂,
反应 7.0h,
以69%的产率得到tert-butyldiphenylsilyl O-(2,3,4-tri-O-benzyl-α-D-galactopyranosyluronic acid)-(1->4)-O-(2,3-di-O-benzyl-α-D-galactopyranosyluronic acid)-(1->4)-2,3-di-O-benzyl-β-D-galactopyranosiduronic acid