Ammonia → N-(2,6-difluorophenyl)-5-{3-[2-({5-methyl-2-(methyloxy)-4-[4-(methylsulfonyl)-1-piperazinyl]phenyl}amino)-4-pyrimidinyl]imidazo[1,2-a]pyridin-2-yl}-2-(methyloxy)benzamide

Participants

Reaction Conditions

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, 0.2 mmol), 5-methyl-2-(methyloxy)-4-[4-(methylsulfonyl)-1-piperazinyl]aniline (53 mg, 0.18 mmol), and p-toluenesulfonicacid (93 mg, 0.49 mmol) were weighed into a 20 mL vial. 1 mL of trifluoroethanol was added and the mixture was heated to 100° C. for 72 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 (50 mg, 0.066 mmol, 37%). 1H NMR (400 MHz, DMSO-d6) d ppm 9.78 (s, 1H), 9.38 (d, J=6.97 Hz, 1H), 8.49 (s, 1H), 8.24 (d, J=5.13 Hz, 1H), 8.10 (d, J=2.20 Hz, 1H), 7.78 (dd, J=8.80, 2.20 Hz, 1H), 7.70 (d, J=8.80 Hz, 1H), 7.54 (s, 1H), 7.42-7.48 (m, 1H), 7.34-7.42 (m, 1H), 7.28 (d, J=8.80 Hz, 1H), 7.18 (t, J=8.07 Hz, 2H), 6.92-7.01 (m, 1H), 6.83 (s, 1H), 6.57 (d, J=5.13 Hz, 1H), 3.98 (s, 3H), 3.81 (s, 3H), 3.24-3.30 (m, 4H), 2.95-2.99 (m, 4H), 2.94 (s, 3H), 2.17 (s, 3H); MS (ESI): 755 [M+H]+.

Provenance & Evidence