2-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenyl → HCID 59631093, compound

Participants

Reaction Steps

The Buchwald coupled product was prepared according to Procedure H using dicyclohexyl(2′,4′,6′-triisopropylbiphenyl-2-yl)phosphine (0.025 g, 0.052 mmol), 2,5-dimorpholinopyridin-3-amine (0.103 g, 0.39 mmol), 4,8-dichloro-5-fluoro-3-methyl-2-(pyridin-2-yl)quinoline (0.1 g, 0.33 mmol), Pd2dba3 (0.012 g, 0.013 mmol) and sodium tert-butoxide (0.078 g, 0.812 mmol) in toluene (3.3 mL) at 120° C. for 3 h. The crude product was purified by column chromatography on basic alumina (0 to 50% hexanes/EtOAc) to give the desired product 8-chloro-N-(2,5-dimorpholinopyridin-3-yl)-5-fluoro-3-methyl-2-(pyridin-2-yl)quinolin-4-amine. 1H NMR (400 MHz, CDCl3) δ ppm 8.67 (1H, m), 8.19 (1H, dt, J=7.8, 1.1 Hz), 7.90-7.92 (1H, td, J=7.7, 1.8 Hz), 7.86 (1H, d, J=12.0 Hz), 7.73 (1H, dd, J=8.4, 5.1 Hz), 7.63 (1H, d, J=2.7 Hz), 7.38 (1H, ddd, J=7.6, 4.8, 1.3 Hz), 7.12 (1H, dd, J=12.9, 8.4 Hz), 6.45 (1H, d, J=2.2 Hz), 3.94 (4H, br. s.), 3.81 (4H, m), 3.18 (4H, br. s.), 3.09 (4H, m), 2.34 (3H, s). Mass Spectrum (ESI) m/e=535.2 (M+1).

Provenance & Evidence