反应详情

To a solution of 4-(trifluoromethyl)-2-(3,3,3-trifluoropropyl)-1H-indole-5-carbonitrile (Example 302A) (0.200 g, 0.653 mmol) in anhydrous acetonitrile (25 mL) was added Cs2CO3 (0.851 g, 2.612 mmol) and 3-(chloromethyl)-5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazole (0.257 g, 0.979 mmol). The mixture was heated under N2, for 2 h. Upon cooling, the mixture was partitioned between EtOAc and water. The organic phase was separated, dried (MgSO4) and concentrated in vacuo. The residue was purified by flash chromatography (0-20% EtOAc-hexanes gradient) to afford a pure product (0.051 g, 24% yield): MS (ES) m/z 532 (M+).

1. temperatureThe mixture was heated under N2, for 2 h
2. temperatureUpon cooling
3. customthe mixture was partitioned between EtOAc and water
4. customThe organic phase was separated
5. dry with materialdried (MgSO4)
6. concentrationconcentrated in vacuo
7. customThe residue was purified by flash chromatography (0-20% EtOAc-hexanes gradient)