溴甲苯 、 methyl (isopropyl O-(2-acetamido-3-O-benzyl-4,6-O-benzylidene-2-deoxy-α-D-Glc)-(1->4)-O-(methyl 3-O-benzyl-α-L-idopyranosyluronate)-(1->4)-O-(2-azido-3,6-di-O-benzyl-2-deoxy-α-D-Glc)-(1->4)-3-O-benzyl-2-O-pivaloyl-α-L-idopyranosyl)uronate 在
silver(l) oxide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 30.0h,
以88%的产率得到methyl (isopropyl O-(2-acetamido-3-O-benzyl-4,6-O-benzylidene-2-deoxy-α-D-Glc)-(1->4)-O-(methyl 2,3-di-O-benzyl-α-L-idopyranosyluronate)-(1->4)-O-(2-azido-3,6-di-O-benzyl-2-deoxy-α-D-Glc)-(1->4)-3-O-benzyl-2-O-pivaloyl-α-L-idopyranosyl)uronate