反应详情

温度

80 °C

To a 20 mL vial were 5-(4-bromo-2-fluorophenyl)pyrazin-2-amine (50 mg, 0.19 mmol), (2-(N,N-dimethylsulfamoyl)phenyl)boronic acid, K2CO3 (43 mg, 0.19 mmol), and Pd(dppf)Cl2.CH2Cl2 (8 mg, 0.009 mmol), and a stir-bar. The vial was sealed with a teflon lined cap and sparged with N2. The vial was then charged with freshly sparged DMSO (2 mL) and then stirred 16 hours at 80° Celsius. The reaction mixture was then cooled to rt, filtered, and purified by HPLC to give the title compound (36 mg, 40%). MS (ESI): mass calcd. for C18H17FN4O2S, 372.11; m/z found, 373.2 [M+H]+. 1H NMR (400 MHz, CD3OD) δ 8.33 (s, 2H), 8.06-7.96 (m, 2H), 7.72-7.67 (m, 1H), 7.64-7.59 (m, 1H), 7.43-7.39 (m, 1H), 7.32-7.26 (m, 2H), 2.49 (s, 6H).

1. customlined cap
2. customsparged with N2
3. additionThe vial was then charged with freshly sparged DMSO (2 mL)
4. temperatureThe reaction mixture was then cooled to rt
5. filtrationfiltered
6. custompurified by HPLC