反应详情

To a solution of 3-(2-Methoxy-5-trifluoromethyl-phenyl)-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-6-ylamine (Example 88) (0.08 g, 0.25 mmol) in DCM (5 ml) is added drop wise boron tribromide (1M solution in DCM, 0.99 ml, 0.99 mmol), under an inert atmosphere of argon at 0-5° C. (ice-bath). The reaction mixture is warmed to room temperature, stirred for 2 hours and then quenched with water (10 ml). The resulting solid is collected by filtration and dried under vacuum to afford the title compound.

1. customat 0-5° C.
2. customquenched with water (10 ml)
3. filtrationThe resulting solid is collected by filtration
4. customdried under vacuum