反应详情

温度

170 °C

A mixture of 5-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(ethyloxy)benzamide (Intermediate Example 6) (0.125 g, 0.247 mmol), 5-ethyl-2-(methyloxy)-4-{4-[4-(methylsulfonyl)-1-piperazinyl]-1-piperidinyl}aniline (0.098 g, 0.247 mmol) and HCl (4N,1,4-Dioxane, 0.12 mL, 0.494 mmol) in trifluoroethanol (8 mL) was heated at 170° C. for 40 min in the microwave. The reaction was quenched with 7 N NH3 in MeOH and then concentrated to dryness. The residue was then dissolved in DCM and concentrated onto silica gel. Purification by flash column chromatography followed by recrystallization from DCM and EtOH afforded the title compound N-(2,6-difluorophenyl)-5-(3-{2-[(5-ethyl-2-(methyloxy)-4-{4-[4-(methylsulfonyl)-1-piperazinyl]-1-piperidinyl}phenyl)amino]-4-pyrimidinyl}imidazo[1,2-a]pyridin-2-yl)-2-(ethyloxy)benzamide (0.150 g, 67%) as a yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 9.76 (s, 1H), 9.30-9.43 (m, 1H), 8.50 (s, 1H), 8.25 (d, J=5.22 Hz, 1H), 8.06 (d, J=2.02 Hz, 1H), 7.74-7.80 (m, 1H), 7.71 (d, J=8.89 Hz, 1H), 7.53 (s, 1H), 7.34-7.49 (m, 2H), 7.28 (d, J=8.43 Hz, 1H), 7.16-7.25 (m, 2H), 6.91-7.00 (m, 1H), 6.83 (s, 1H), 6.58 (d, J=5.04 Hz, 1H), 4.20-4.33 (m, 2H), 3.81 (s, 3H), 3.08-3.16 (m, 4H), 3.00-3.08 (m, 2H), 2.88 (s, 3H), 2.67-2.78 (m, 2H), 2.61-2.66 (m, 4H), 2.56 (q, J=7.51 Hz, 2H), 2.38-2.47 (m, 1H), 1.79-1.92 (m, 2H), 1.52-1.68 (m, 2H), 1.44 (t, J=6.92 Hz, 3H), 1.11 (t, J=7.51 Hz, 3H). MS (M+H, ES+) 866.

1. customThe reaction was quenched with 7 N NH3 in MeOH
2. concentrationconcentrated to dryness
3. dissolutionThe residue was then dissolved in DCM
4. concentrationconcentrated onto silica gel
5. customPurification by flash column chromatography
6. customfollowed by recrystallization from DCM and EtOH