5-[(2,2-Difluoro-1,3-benzodioxol-5-yl){7-[(methylsulfanyl)methyl]-1H-indol-3-yl}methyl]-2,2-dimethyl-1,3-dioxane-4,6-dione 在
铜 crude product 、 silica gel 、 cyclohexane, ethyl acetate 作用下,
以
吡啶 、
乙醇 为溶剂,
反应 4.0h,
以1.73 g (74% of theory) of the title compound were obtained的产率得到ethyl 3-(2,2-difluoro-1,3-benzodioxol-5-yl)-3-{7-[(methylsulfanyl)methyl]-1H-indol-3-yl}propanoate