反应详情

温度

70 °C

3-Bromo-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-6-ylamine (Intermediate 3) (1.2 g, 5.2 mmol) is dissolved in THF (40 ml), under an inert atmosphere of argon. To this is added Pd(PPh3)2Cl2 (0.224 g, 0.32 mmol), [3-fluoro-4-methoxyphenyl]boronic acid (0.98 g, 5.8 mmol) and a solution of Na2CO3 (1.5 g, 14 mmol) dissolved in distilled water (4 ml). The reaction mixture is heated to reflux at 70° C. for 24 hours. After cooling to room temperature the reaction mixture is pre-absorbed onto silica and purification by flash chromatography on silica eluting with iso-hexanes:EtOAc (2:1) affords the title compound as a solid.

1. temperatureThe reaction mixture is heated
2. temperatureAfter cooling to room temperature the reaction mixture
3. customis pre-absorbed onto silica and purification by flash chromatography on silica eluting with iso-hexanes:EtOAc (2:1)