反应详情

温度

160 °C

To a microwave tube was added 5-bromo-3-iodo-1H-pyrazolo[3,4-c]pyridine (100 mg, 0.31 mmol), pyridin-3-ylboronic acid (343 mg, 2.79 mmol), Pd(dppf)Cl2 (24 mg, 0.03 mmol), sodium carbonate (131 mg, 1.24 mmol), 1,2-dimethoxyethane (2 mL), ethanol (0.5 mL) and water (0.5 mL). The tube was flushed with nitrogen for 2 minutes and heated in a Biotage microwave at 160° C. for 1 hour. The solvent was distilled off and the crude product was purified via reverse phase HPLC eluting with 15% CH3CN in aqueous 10 mmol NH4HCO3 to afford 176 as a pale yellow solid (30 mg, 28%). 1H NMR (500 MHz, DMSO) 1H NMR (500 MHz, DMSO) δ 14.1 (s, 1H), 9.44 (s, 1H), 9.37 (s, 3H), 9.26 (s, 1H), 8.71 (s, 1H), 8.67-8.66 (m, 1H), 8.60-8.59 (m, 2H), 8.56-8.54 (m, 1H), 7.60-7.58 (m, 1H), 7.52-7.51 (m, 1H). ESI MS m/z=274 (M+1)

1. customThe tube was flushed with nitrogen for 2 minutes
2. distillationThe solvent was distilled off
3. customthe crude product was purified via reverse phase HPLC