C(OC(=O)[NH:7][CH2:8][CH2:9][O:10][C:11]1[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=1)(C)(C)C.[ClH:19]>O1CCOCC1>[ClH:19].[F:17][C:14]1[CH:15]=[CH:16][C:11]([O:10][CH2:9][CH2:8][NH2:7])=[CH:12][CH:13]=1Next, to a solution of [2-(4-fluorophenoxy)ethyl]carbamic acid tert-butyl ester (7.0 g, 27.4 mmol) in dioxane (20 mL) cooled in an ice bath was added 4N—HCl in dioxane (100 mL) dropwise. The mixture was stirred at 0° C. for 2 hours, and at room temperature for 16 hours. The precipitates were filtered, washed with diethylether, and dried under reduced pressure to yield 2-(4-fluorophenoxy)ethylamine HCl salt (4.24 g, 80.7% yield).
Wird geladen…