2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenyl → N-(2,5-di(4-morpholinyl)-3-pyridinyl)-5,7-difluoro-3-methyl-2-(4-pyridinyl)-4-quinolinamine

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of dicyclohexyl(2′,4′,6′-triisopropylbiphenyl-2-yl)phosphine (0.026 g, 0.055 mmol), 2,5-dimorpholinopyridin-3-amine (0.109 g, 0.413 mmol), 4-chloro-5,7-difluoro-3-methyl-2-(pyridin-4-yl)quinoline (0.1 g, 0.344 mmol) and Pd2dba3 (0.013 g, 0.014 mmol) in toluene (3.44 mL) was added sodium t-butoxide (0.083 g, 0.860 mmol). The reaction mixture was heated to 120° C. and stirred for 2 h. The reaction was then cooled to rt and diluted with water (15 mL). The mixture was extracted with EtOAc (2×15 mL) and DCM (1×15 mL). The organic layers were combined and washed with brine (1×20 mL) and dried over magnesium sulfate. The crude product was purified by column chromatography on basic alumina (0 to 50% hexanes/EtOAc) to give the desired product N-(2,5-di(4-morpholinyl)-3-pyridinyl)-5,7-difluoro-3-methyl-2-(4-pyridinyl)-4-quinolinamine. Mass Spectrum (ESI) m/e=519.2 (M+1). 1H NMR (400 MHz, CDCl3) δ ppm 8.76-8.83 (2H, dd, J=5.9, 1.6 Hz), 7.73 (1H, br s), 7.68 (1H, d, J=2.5 Hz), 7.62 (1H, ddd, J=9.3, 2.5, 1.3 Hz), 7.52 (2H, dd, J=4.6, 1.5 Hz), 6.99-7.10 (1H, m), 6.34 (1H, br. s.), 3.91 (4H, br s), 3.78-3.86 (4H, m), 3.21 (4H, br. s.), 2.99-3.09 (4H, m), 2.16 (3H, br. s.)

Provenance & Evidence