1-(6-hydroxy-7-methoxy-1-benzofuran-5-yl)ethanone

methyl 6-hydroxy-4,7-dimethoxy-1-benzofuran-5-carboxylate

甲基溴化镁

4-acetoxy-5-<1-<(tert-butyldimethylsilyl)oxy>ethyl>-6-ethoxy-7-methoxybenzofuran

4,7-dimethoxy-6-ethoxy-5-(1-hydroxyethyl)benzofuran