Cesium carbonate → 4-(4-Fluorophenyl)-7-[(3-methyl-2,5-dioxoimidazolidin-1-yl)methyl]quinoline-2-carbonitrile

7-(Bromomethyl)-4-(4-fluorophenyl)quinoline-2-carbonitrile (2-1, 50.0 mg, 0.147 mmol, 1.0 equiv.), 1-methylimidazolidine-2,4-dione (18.4 mg, 0.161 mmol, 1.1 equiv.) and cesium carbonate (95.0 mg, 0.293 mmol, 2.0 equiv.) were combined into 1.0 ml of DMF. The resulting mixture was stirred at ambient temperature for 16 hours. The solid was filtered and the filtrate was purified by reverse phase HPLC (H2O/CH3CN gradient w/0.1% TFA modifier) to afford 4-(4-fluorophenyl)-7-[(3-methyl-2,5-dioxoimidazolidin-1-yl)methyl]quinoline-2-carbonitrile (2-2, 48.0 mg, 87.0%) as a colorless solid. 1H NMR (400 MHz, CDCl3): δ 8.205 (d, J=1.09 Hz, 1H); 7.941 (d, J=8.79 Hz, 1H); 7.681 (dd, J1=8.79 Hz, JZ=1.83 Hz, 1H); 7.647 (s, 1H); 7.454-7.503 (m, 2H); 7.251-7.309 (m, 2H); 4.935 (s, 2H); 4.049 (s, 2H); 3.057 (s, 3H). LRMS m/z (M+H)+ 375.1 found, 375.1 required.