Reaction Steps
A mixture of 2-({2-chloro-7-[(4-methylphenyl)sulfonyl]-7H-pyrrolo[2,3-d]pyrimidin-4-yl}amino)-6-fluorobenzamide (0.2 g, 0.44 mmol), 1-acetyl-6-(methyloxy)-1,2,3,4-tetrahydro-7-quinolinamine (0.10 g mg, 0.43 mmol) was taken in 2,2,2-trifluoroethanol (10 mL) and hydrochloric acid (1.0 mL, 4.0 mmol, 4M in 1,4-dioxane) was added. The mixture was heated at 90° C. in a sealed tube for 24 h. The reaction was cooled; excess saturated aqueous sodium bicarbonate was added, and extracted with dichloromethane. The organic layer was separated, dried over magnesium sulfate, filtered, concentrated, diluted with tetrahydrofuran (10 mL) and treated with excess methyl amine (5.0 mL, 10 mmol, 2M in THF). The reaction was stirred for 16 h, diluted with water, and extracted with ethyl acetate. The organic layer was separated, dried over sodium sulfate, concentrated, and purified by flash silica gel column chromatography (0 to 20% methanol/dichloromethane spiked with aqueous ammonia). “Pure” fractions were isolated, concentrated, dissolved in 1,4-dioxane (7.0 mL), treated with 85% potassium hydroxide (750 mg, 11.4 mmol), water (1.0 mL), and stirred for 24 h at 80° C. The reaction was cooled; the organic layer was separated, dried over sodium sulfate, and purified by flash silica gel column chromatography. Further purification via reverse phase HPLC (5 to 90% acetonitrile/water, 0.05% trifluoroacetic acid) provided 2-[(2-{[1-acetyl-6-(methyloxy)-1,2,3,4-tetrahydro-7-quinolinyl]amino}-1H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]-6-fluoro-N-methylbenzamide (0.03 g, 0.06 mmol, 14% over 3 steps). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.81-1.92 (m, 2 H), 2.16 (s, 3 H), 2.64-2.72 (m, 2 H), 2.78 (d, J=4.2 Hz, 3 H), 3.68 (t, J=6.2 Hz, 2 H), 3.87 (s, 3 H), 6.32 (bs, 1 H), 6.84 (m, 1 H), 6.94-7.03 (m, 2 H), 7.40-7.47 (m, 1 H), 7.50 (s, 1 H), 8.17-8.26 (m, 1 H), 8.46 (s, 1H), 8.52-8.59 (m, 1 H), 10.07 (s, 1 H), 11.42 (bs, 1 H); ESIMS (M+H)+=504.
