反应详情

To a cooled (0° C.) solution of 4′-(trifluoromethyl)[1,1′-biphenyl]-4-ol (178 mg, 0.75 mmol) in DMF was added sodium hydride (27.0 mg, 1.12 mmol). Once the hydrogen evolution subsided, the reaction mixture was allowed to warm to ambient temperature. The title compound from Example 303 Step A (373 mg, 1.30 mmol) was then added to the reaction flask, and the reaction mixture was stirred at 60° C. After 15 h, the reaction mixture was quenched by addition of 2 N aqueous HCl. The aqueous phase was extracted with hexanes/ethyl acetate (3:1 v/v). The organic phase was separated, dried over sodium sulfate and concentrated in vacuo. Purification was by flash chromatography on silica gel (0-20% dichloromethane in hexanes) provided the title compound: LCMS m/z 423.5 [M−F]+; 1H NMR (500 MHz, CD2Cl2) δ 7.85 (dd, J=7.8, 1.6 Hz, 1H), 7.76 (d, J=8.0 Hz, 1H), 7.72 (s, 4H), 7.65 (dd, J=6.8, 1.9 Hz, 2H), 7.45 (d, J=8.7 Hz, 3H), 7.40 (td, J=7.7, 1.5 Hz, 1H).

1. customthe reaction mixture was quenched by addition of 2 N aqueous HCl
2. extractionThe aqueous phase was extracted with hexanes/ethyl acetate (3:1 v/v)
3. customThe organic phase was separated
4. dry with materialdried over sodium sulfate
5. concentrationconcentrated in vacuo
6. customPurification