反应详情

温度

180 °C

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-fluoro-2-(methyloxy)-4-[2-(1-piperidinyl)ethyl]aniline (46 mg, 0.18 mmol), and p-toluenesulfonic acid (92 mg, 0.49 mmol) were weighed into a 10 mL microwave vial. 5 mL of iPrOH was added and the mixture was heated in the microwave to 180° C. for 17 min. The mixture was transferred to a 50 mL round bottom and diluted with 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, followed by MeOH re-crystallization to give the title compound (54 mg, 0.076 mmol, 37%). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.76 (s, 1H), 9.42 (d, J=6.96 Hz, 1H), 8.50 (s, 1H), 8.30-8.34 (m, 1H), 8.11 (s, 1H), 7.80-7.86 (m, 1H), 7.77 (d, J=8.06 Hz, 1H), 7.71 (d, J=9.16 Hz, 1H), 7.43-7.48 (m, 1H), 7.32-7.40 (m, 1H), 7.26 (d, J=8.61 Hz, 1H), 7.16 (t, J=8.06 Hz, 2H), 7.00 (t, J=6.23 Hz, 2H), 6.67 (d, J=4.94 Hz, 1H), 3.97 (s, 3H), 3.82 (s, 3H), 3.26-3.27 (m, 2H), 2.70 (t, J=7.33 Hz, 2H), 2.34-2.42 (m, 4H), 1.43-1.50 (m, J=4.76 Hz, 4H), 1.32-1.39 (m, 2H). MS (ESI): 708 [M+H]+.

1. addition1 g of silica gel was added
2. customthe pre-adsorbed solids were purified by flash chromatography
3. customfollowed by MeOH re-crystallization