Reaction Steps
A mixture of 5-[3-(2-chloro-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]-N-(2,6-difluorophenyl)-2-(methyloxy)benzamide (Intermediate Example 2) (0.1 g, 0.203 mmol), (5-ethyl-2-(ethyloxy)-4-{4-[4-(methylsulfonyl)-1-piperazinyl]-1-piperidinyl}phenyl)amine (0.083 g, 0.203 mmol) and HCl (4N,1,4-Dioxane, 0.102 mL, 0.407 mmol) in Trifluoroethanol (8 mL) was heated at 170° C. for 40 min in the microwave. LCMS analysis indicated that the starting materials had been consumed. The reaction was quenched with 7N 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-(ethyloxy)-4-{4-[4-(methylsulfonyl)-1-piperazinyl]-1-piperidinyl}phenyl)amino]-4-pyrimidinyl}imidazo[1,2-a]pyridin-2-yl)-2-(methyloxy)benzamide (0.119 g, 64%). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.79 (s, 1H), 9.27-9.38 (m, 1H), 8.40 (s, 1H), 8.28 (d, J=5.22 Hz, 1H), 8.13 (d, J=1.92 Hz, 1H), 7.80 (dd, J=8.39, 1.88 Hz, 1H), 7.72 (d, J=8.98 Hz, 1H), 7.58 (s, 1H), 7.35-7.51 (m, 2H), 7.29 (d, J=8.71 Hz, 1H), 7.14-7.25 (m, 2H), 6.88-6.98 (m, 1H), 6.81 (s, 1H), 6.60 (d, J=5.13 Hz, 1H), 4.06 (q, J=6.97 Hz, 2H), 4.00 (s, 3H), 3.07-3.15 (m, 4H), 2.98-3.06 (m, 2H), 2.87 (s, 3H), 2.60-2.74 (m, 6H), 2.52-2.59 (m, 2H), 2.36-2.46 (m, 1H), 1.80-1.87 (m, 2H), 1.50-1.67 (m, 2H), 1.26 (t, J=6.97 Hz, 3H), 1.09 (t, J=7.51 Hz, 3H). MS (M+H, ES+) 866.
