Cesium carbonate → 5-Bromo-1-methyl-3-(5-(1-methylpiperidin-4-yl)pyridin-2-ylamino)pyridin-2(1H)-one

Participants

Reaction Conditions

Reaction Steps

To a round-bottomed flask equipped with a stirring bar, 130b (1.08 g, 5.65 mmol), 3,5-dibromo-1-methylpyridin-2(1H)-one (2.26 g, 8.47 mmol), Pd2(dba)3 (517 mg, 0.565 mmol), XantPhos (523 mg, 0.903 mmol), Cs2CO3 (6.07 g, 18.6 mmol) and dioxane (28.3 mL) were added. The reaction mixture was heated at 100° C. overnight. CH2Cl2 (200 mL) was added to the resulting mixture was washed with water (30 mL×3). CH2Cl2 (200 mL) was added and the resulting mixture was washed with water (30 mL×3), brine (30 mL×1), dried over MgSO4, filtered, and removed solvent in vacuo. CH2Cl2/ether (1:2, 5 mL) were added followed by sonication, the precipitation was filtered and dried. Compound 130c was obtained as a green solid, 784 mg (37%).

Provenance & Evidence