(E)-buta-1,3-dienyl 3-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-2-acetamido-4,6-di-O-benzoyl-α-D-galactopyranoside 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 3.0h,
以95%的产率得到(E)-buta-1,3-dienyl 3-O-(β-D-galactopyranosyl)-2-acetamido-2-deoxy-α-D-galactopyranoside