Reaction Steps
5-[3-(2-Chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(methyloxy)benzamide (Intermediate Example 2) (100 mg, 0.203 mmol), 5-methyl-2-(methyloxy)-4-{4-[2-(methylsulfonyl)ethyl]-1-piperazinyl}aniline (Example 148, step D) (60 mg, 0.183 mmol), and p-toluenesulfonic acid (93 mg, 0.49 mmol) were weighed into a 20 mL vial. 10 mL of iPrOH was added and the mixture was heated to 120° C. for 48 h. The mixture was transferred to a 50 mL round bottom and neutralized with 2 mL of 0.5 N sodium methoxide. The solvent was rotovaped down. The residue was taken up in 10 mL of DCM. 1 g of silica gel was added. The solvent was rotovaped down and the pre-adsorbed solids were purified by flash chromatography to give the title compound (65 mg, 0.086 mmol, 49%). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.77 (s, 1H), 9.35 (s, 1H), 8.45 (s, 1H), 8.22 (d, J=5.31 Hz, 1H), 8.09 (d, J=2.01 Hz, 1H), 7.76 (dd, J=8.61, 2.01 Hz, 1H), 7.68 (d, J=8.97 Hz, 1H), 7.49 (s, 1H), 7.40-7.45 (m, 1H), 7.33-7.40 (m, 1H), 7.27 (d, J=8.79 Hz, 1H), 7.17 (t, J=8.06 Hz, 2H), 6.94 (t, J=6.87 Hz, 1H), 6.75 (s, 1H), 6.55 (d, J=5.31 Hz, 1H), 3.97 (s, 3H), 3.79 (s, 3H), 3.31-3.35 (m, 2H), 3.05 (s, 3H), 2.82-2.90 (m, 4H), 2.76 (t, J=6.68 Hz, 2H), 2.53-2.65 (m, 4H), 2.13 (s, 3H). MS (ESI): 783 [M+H]+.
