Sodium Carbonate → HCID 178425211, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-(3-bromo-2-cyanophenoxy)-3-chloro-N-((2-hydroxy-4,6-dimethylpyridin-3-yl)methyl)benzamide (500 mg, 1.03 mmol), pyridin-4-ylboronic acid (150 mg, 1.2 mmol), sodium carbonate (425 mg, 3.07 mmol) in 1,4-dioxane (20 mL) and water (5 mL) was added tetrakis(triphenylphosphine)palladium(0) (118 mg, 0.1 mmol). The reaction mixture was stirred at 90° C. under nitrogen atmosphere for 12 hours. After the reaction, it was allowed to cool to room temperature, and concentrated in vacuo, then diluted with ethyl acetate, washed with water. The organic phase was dried over anhydrous sodium sulfate. The mixture was filtered and the filtrate was concentrated. The residue was purified by column chromatography (silica gel, dichloromethane/methanol=20:1) to give the pure product 3-chloro-4-(2-cyano-3-(pyridin-4-yl)phenoxy)-N-((2-hydroxy-4,6-dimethylpyridin-3-yl)methyl)benzamide (348 mg, 70%). LRMS (M+H+) m/z: calcd 484.13. found 484. 1H NMR (300 MHz, d6-DMSO): δ 11.48 (s, 1H), 8.75 (d, J=6.0 Hz, 2H), 8.55 (t, J=4.5 Hz, 1H), 8.15 (s, 1H), 7.94-7.91 (m, 1H), 7.76 (t, J=7.8 Hz, 1H), 7.67-7.65 (m, 2H), 7.44 (d, J=7.5 Hz, 1H), 7.39 (d, J=8.4 Hz, 1H), 7.01 (d, J=8.4 Hz, 1H), 5.86 (s, 1H), 4.29 (d, J=4.8 Hz, 2H), 2.16 (s, 3H), 2.11 (s, 3H).

Provenance & Evidence