Methyl iodide → HCID 10134193, compound

Participants

Reaction Steps

Sodium hydride (60% dispersion in oil) (0.044 g, 1.10 mmol) was added to a solution of 3-(2-fluorophenyl)-5-(4-hydroxypiperidin-1-yl)-[1,2,3]triazolo[1,5-α]quinazoline (Example 9) (10 g, 0.27 mmol) in N,N-dimethylacetamide (4 ml). The mixture was stirred for 30 min before addition of methyl iodide (0.17 ml, 2.8 mmol) and then stirred for a further 18 h. The mixture was diluted with water (20 ml) and extracted with CH2Cl2 (2×50 ml). The combined organic extracts were washed with brine (20 ml), dried over MgSO4 and evaporated to give a colourless oil. Purification by preparative thin layer chromatography eluting with CH2Cl2:MeOH:NH3(c) (95:5:0.5) gave 3-(2-fluorophenyl)-5-(4-methoxypiperidin-1-yl)-[1,2,3]triazolo[1,5-α]quinazoline (0.067 g, 65%) as a yellow solid. δH (360 MHz; CDCl3) 1.84-1.90 (2H, m), 2.11-2.16 (2H, m), 3.36-3.41 (2H, m), 3.42 (3H, s), 3.51-3.54 (1H, m), 3.88-3.95 (2H, m), 7.19-7.29 (2H, m), 7.32-7.37 (1H, m), 7.60 (1H, ddd, J=8, 8 and 1), 7.88 (1H, ddd, J=8, 8 and 1), 8.01 (1H, d, J=8), 8.15 (1H, ddd, J=7, 7 and 2), 8.67 (1H, dd, J=8 and 1); m/z (ES+) 378 (M+H+).

Provenance & Evidence