Reaction Steps
5-[3-(2-Chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(ethyloxy)benzamide (Intermediate Example 6) (100 mg, 0.2 mmol), 5-methyl-2-(methyloxy)-4-{4-[2-(methylsulfonyl)ethyl]hexahydro-1H-1,4-diazepin-1-yl}aniline (67 mg, 0.2 mmol), and p-toluenesulfonicacid (90 mg, 0.47 mmol) were weighed into a 20 mL vial. 1 mL of trifluoroethanol was added and the mixture was heated to 100° C. for 24 h. 2 mL of 2 N ammonia in MeOH was added. The solvent was rotovaped down. The residue was taken up in 3 mL of DCM. 1 g of silica gel was added. The solvent was rotovaped down and the pre-absorbed solids were purified by flash chromatography to give the title compound (94 mg, 0.12 mmol, 59%). 1H NMR (400 MHz, DMSO-d6) δ 9.74 (s, 1H), 9.36 (s, 1H), 8.44 (s, 1H), 8.22 (d, J=5.13 Hz, 1H), 8.04 (d, J=2.20 Hz, 1H), 7.74 (dd, J=8.62, 2.02 Hz, 1H), 7.69 (d, J=8.80 Hz, 1H), 7.41-7.48 (m, 2H), 7.32-7.41 (m, 1H), 7.26 (d, J=8.80 Hz, 1H), 7.18 (t, J=8.07 Hz, 2H), 6.94 (t, J=6.78 Hz, 1H), 6.79 (s, 1H), 6.55 (d, J=5.13 Hz, 1H), 4.26 (q, J=6.97 Hz, 2H), 3.78 (s, 3H), 3.28 (t, J=7.15 Hz, 2H), 3.06-3.14 (m, 4H), 3.04 (s, 3H), 2.92 (t, J=6.78 Hz, 2H), 2.80 (t, J=5.68 Hz, 4H), 2.15 (s, 3H), 1.85 (qd, J=5.74, 5.50 Hz, 2H), 1.42 (t, J=6.78 Hz, 3H); MS (ESI): 811 [M+H]+.
