Sodium Carbonate → N-(5-bromo-6'-methoxy-2,3'-bipyridin-3-yl)-5,7-difluoro-3-methyl-2-(pyridin-2-yl)-quinolin-4-amine

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Reaction Conditions

Reaction Steps

A dry flask containing 5-bromo-6′-methoxy-2,3′-bipyridin-3-amine (226.0 mg, 0.81 mmol) in dry DMF (5 mL) was cooled to 0° C., then sodium hydride, 60% dispersion in mineral oil (100.7 mg, 2.52 mmol) was added carefully in portions. The mixture was stirred at 0° C. for 15 min, then 4-chloro-5,7-difluoro-3-methyl-2-(pyridin-2-yl)quinoline (353.1 mg, 1.21 mmol) was added in portions. Upon complete addition, the mixture was warmed to 70° C. After 3 h, the reaction was cooled to rt then was carefully treated with 10% sodium carbonate solution. The black mixture was subsequently extracted 5 times with DCM:MeOH (90:10). The organic extraction was then washed one time with brine and dried over anhydrous magnesium sulfate. After filtration and concentration, the residue was purified on basic alumina (0-35% EtOAc in hexanes) to afford a yellow residue as mostly N-(5-bromo-6′-methoxy-2,3′-bipyridin-3-yl)-5,7-difluoro-3-methyl-2-(pyridin-2-yl)-quinolin-4-amine that was used without further purification.

Provenance & Evidence