Hydrochloric Acid → HCID 131732358, compound

Participants

Reaction Steps

To a solution of tert-butyl 1-(5-fluoropyridin-3-yl)-3-methyl-1H-pyrazol-4-yl(prop-2-ynyl)carbamate (1.03 g, 3.11 mmol) in dioxane (5 mL) was added 4 molar (M) hydrogen chloride (HCl; 3.9 mL, 15.5 mmol) in diethyl ether (Et2O). The mixture was stirred at room temperature for 48 h and the resulting white solid was filtered, washed with Et2O and dried under vacuum to give the title compound as a white solid (741 mg, 89%): mp 167-168° C.; 1H NMR (400 MHz, DMSO d6) δ 8.92-8.85 (m, 1H), 8.42 (d, J=2.5 Hz, 1H), 8.15 (s, 1H), 8.12-8.02 (m, 1H), 3.85 (d, J=2.5 Hz, 2H), 3.27-3.19 (m, 1H), 2.22 (s, 3H); ESIMS m/z 230.4 ([M]+).

Provenance & Evidence