2-Methoxyethanol → HCID 136348032, compound

Participants

Reaction Steps

To a solution of 2-methoxy-ethanol (0.64 g, 8.40 mmol) in anhydrous DMSO (4 mL) was added sodium hydride (60% suspension in mineral oil, 0.12 g, 5.00 mmol) in small portions and the reaction mixture was stirred at room temperature for 30 minutes. To this mixture was added a solution of 7-fluoro-5-methoxy-2-(2-methyl-pyridin-4-yl)-3H-quinazolin-4-one (0.24 g, 0.84 mmol) in anhydrous DMSO (12 mL). The reaction mixture was stirred at 80° C. for 3 hours, then cooled to room temperature, and diluted with ether (500 mL). The solid was filtered and washed with ether. The crude compound was purified by column chromatography (silica gel 230-400 mesh; 4% methanol in dichloromethane). The compound was further purified by preparative HPLC to give the title compound as a white solid. Yield: 60 mg (21%). MP 260-262° C. 1H NMR (400 MHz, DMSO-d6): δ 8.62 (d, J=5.07 Hz, 1H), 7.98 (s, 1H), 7.88 (d, J=5.07 Hz, 1H), 6.80 (d, J=2.34 Hz, 1H), 6.61 (d, J=2.34 Hz, 1H), 4.25 (t, J=4.68 Hz, 2H), 3.86 (s, 3H), 3.71 (t, J=3.90 Hz, 2H), 3.33 (s, 3H), 2.57 (s, 3H). MS (ES) m/z: 342.07 (M+1) (100%).

Provenance & Evidence