反应详情

N-(2-(2-Fluoro-5-methylphenyl)pyridin-4-yl)-1-(piperidin-4-yl)-1H-pyrazolo[4,3-b]pyridin-7-amine (17 mg, 0.042 mmol) and triethylamine (0.018 ml, 0.127 mmol) were combined in dichloromethane (3 mL) and cool in an ice bath. Mesyl chloride (3.61 μl, 0.046 mmol) was added and the reaction was briefly warmed to room temperature. The reaction mixture was concentrated and purified by silica column chromatography eluting with 0-5% methanol in dichloromethane to give to afford N-(2-(2-fluoro-5-methylphenyl)pyridin-4-yl)-1-(1-(methylsulfonyl)piperidin-4-yl)-1H-pyrazolo[4,3-b]pyridin-7-amine (4 mg, 20%). 1H NMR (400 MHz, CHLOROFORM-d) δ ppm 1.93 (d, J=10.61 Hz, 2H) 2.24-2.43 (m, 5H) 2.55-2.69 (m, 2H) 2.76 (s, 3H) 3.84 (d, J=12.63 Hz, 2H) 4.57 (t, J=10.74 Hz, 1H) 6.29 (br. s., 1H) 6.60 (dd, J=5.56, 2.02 Hz, 1H) 6.88-7.09 (m, 1H) 7.09-7.25 (m, 3H) 7.75 (dd, J=7.45, 2.15 Hz, 1H) 8.33 (s, 1H) 8.50 (d, J=5.56 Hz, 1H) 8.56 (d, J=4.55 Hz, 1H). MS [M+H] found 481.4.

1. temperaturecool in an ice bath
2. concentrationThe reaction mixture was concentrated
3. custompurified by silica column chromatography
4. washeluting with 0-5% methanol in dichloromethane
5. customto give