Methyl vinyl sulfone → N-(2,6-difluorophenyl)-3-[3-(2-{[2-methyl-4-({1-[2-(methylsulfonyl)ethyl]-4-piperidinyl}oxy)phenyl]amino}-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]benzamide

Participants

Reaction Steps

To N-(2,6-difluorophenyl)-3-[3-(2-{[2-methyl-4-(4-piperidinyloxy)phenyl]amino}-4-pyrimidinyl)imidazo[1,2-a]pyridin-2-yl]benzamide (Example 6) (0.10 g, 0.16 mmol) in THF (5 mL) was added methyl vinyl sulfone (0.028 mL, 0.32 mmol) in one portion. The reaction was stirred at rt until complete by MS. Purification by flash chromatography provided the title compound (0.048 g, 0.065 mmol, 40%). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.58-1.66 (m, 2H), 1.89-1.97 (m, 2H), 2.19 (s, 3H), 2.22-2.33 (m, 2H), 2.68-2.77 (m, 4H), 3.02 (s, 3H), 3.23-3.28 (m, 2H), 4.34-4.39 (m, 1H), 6.45 (d, J=4.9 Hz, 1H), 6.76-6.85 (m, 1H), 6.88 (s, 2H), 7.22 (dt, J=16.3, 8.2 Hz, 3H), 7.36-7.48 (m, 2H), 7.62 (t, J=7.6 Hz, 1H), 7.71 (d, J=8.8 Hz, 1H), 7.78-7.89 (m, 1H), 8.06 (d, J=7.3 Hz, 1H), 8.18 (d, J=5.1 Hz, 1H), 8.31 (s, 1H), 8.89 (s, 1H), 9.30-9.36 (m, 1H), 10.24 (s, 1H). MS (M+H, ES+) 738.

Provenance & Evidence