dimethyl 4-(6'-O-acetyl-2',3',4'-tri-O-benzyl-α-D-galactopyranosyl)-5-phenylpyridazine-3,6-dicarboxylate 在
锌 作用下,
以
溶剂黄146 为溶剂,
反应 0.5h,
以57%的产率得到dimethyl 3-(6'-O-acetyl-2',3',4'-tri-O-benzyl-α-D-galactopyranosyl)-4-phenyl-1H-pyrrole-2,5-dicarboxylate