反应详情

温度

80 °C

To a 5 mL microwave vial were added a stirbar, 5-(2-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyrazin-2-amine (54 mg, 0.17 mmol), 2-bromo-N-cyclohexylbenzenesulfonamide (58 mg, 0.18 mmol), Pd(dppf)Cl2.CH2Cl2 (10 mg, 0.013 mmol), and K2CO3 (80 mg, 0.58 mmol). The vial was capped and flushed with nitrogen before adding 1 mL N2 sparged DMSO and heating at 80° Celsius for 20 hours. The vial was cooled to rt and the reaction mixture subjected to FCC purification to give the title compound (45 mg, 62%). MS (ESI): mass calcd. for C22H23FN4O2S, 426.15; m/z found, 427.1 [M+H]+. 1H NMR (500 MHz, DMSO-d6) δ 8.43-8.35 (m, 1H), 8.05-8.03 (d, J=1.4, 1H), 8.03-7.99 (dd, J=7.9, 1.4, 1H), 7.92-7.84 (m, 1H), 7.70-7.64 (m, 1H), 7.64-7.58 (m, 1H), 7.44-7.37 (m, 2H), 7.32-7.24 (m, 2H), 6.72 (s, 2H), 2.85-2.72 (m, 1H), 1.69-1.52 (m, 5H), 1.48-1.39 (m, 1H), 1.19-0.93 (m, 5H).

1. customThe vial was capped
2. customflushed with nitrogen
3. additionbefore adding 1 mL N2
4. customsparged DMSO
5. temperatureThe vial was cooled to rt
6. customthe reaction mixture subjected to FCC purification