Ethanol → (7-Pyridin-3-yl-pyrrolo[2,1-f][1,2,4]triazin-2-yl)-amine

Participants

Reaction Steps

Palladium Acetate (0.009 g, 0.00004 mol) and Triphenylphosphine (0.013 g, 0.000050 mol) were dissolved in Tetrahydrofuran (4 mL, 0.05 mol) and the mixture was allowed to stir at room temperature for 10 minutes. (7-Bromo-pyrrolo[2,1-f][1,2,4]triazin-2-yl)-{2-methoxy-4-[4-(4-methyl-piperazin-1-yl)-piperidin-1-yl]-phenyl}-amine (0.10 g, 0.00020 mol) (For preparation see Example 242) was then added and the reaction was again allowed to stir for 10 minutes. 3-Pyridylboronic acid (0.034 g, 0.00028 mol) was added followed by 1 M of Sodium carbonate in Water (0.70 mL, 0.0007 mol) and Ethanol (2 mL, 0.03 mol). The reaction mixture was then heated at 80° C. overnight. The solvent was removed under vacuum. The product was worked up with brine and DCM. Purification by prep plate chromatography gave 2-Methoxy-4-[4-(4-methyl-piperazin-1-yl)-piperidin-1-yl]-phenyl}-(7-pyridin-3-yl-pyrrolo[2,1-f][1,2,4]triazin-2-yl)-amine as a tan solid (0.0565 g, 56%). MP: 68-70° C.; 1H-NMR (DMSO, 400 MHz) δ 9.30 (d, 1H, J=2.16 Hz), 8.95 (s, 1H), 8.56 (d, 1H, J=8.08 Hz), 8.52 (d, 1H, J=4.76 Hz), 7.89 (s, 1H), 7.64 (d, 1H, J=5.97Hz), 7.47 (q, 1H, J=4.76 Hz), 7.29 (d, 1H, J=4.80 Hz), 6.95 (d, 1H, J=4.80 Hz), 6.67 (d, 1H, J=2.36 Hz) 6.51 (q, 1H, J=2.48 Hz), 3.82 (s, 3H), 3.72 (d, 2H, J=12.48 Hz), 2.7 (t, 1H, J=11.44 Hz), 2.33-2.30 (m, 4H, J=10.32 Hz), 1.54 (q, 2H).

Provenance & Evidence