A mixture of 4-fluoro-6-(4-(1-(4-fluorophenyl)ethyl)piperazin-1-yl)pyrimidine, Example 33(a), (0.05 g, 0.17 mmol), isoquinolin-8-ol (0.037 g, 0.25 mmol, Monomer Chem, Inc.) cesium carbonate (0.081 g, 0.25 mmol), and DMSO (1 mL) was heated in a microwave synthesizer at 115° C. for 0.5 h. The reaction mixture was allowed to cool to room temperature, diluted with H2O (30 mL) and extracted with DCM (2×50 mL). The combined organic extracts were washed with H2O (2×30 mL), dried over Na2SO4, filtered, and concentrated in vacuo. The residue was purified by silica gel column chromatography (gradient: 0-8% MeOH/DCM) to give the title compound as a white solid. Mp: 114° C. MS (ESI, pos. ion) m/z: 430 (M+1).
