1 g (2.68 mmol) of 3-(trifluoroacetyl)-2,3,4,5-tetrahydro-1H-3-benzazepine-7-amine and 947 mg (3.87 mmol) of 4-(trifluoromethyl)benzenesulfonyl chloride were dissolved in 20 ml of tetrahydrofuran at room temperature, and 1.62 ml (11.62 mmol) of triethylamine were added dropwise to the solution, which was stirred at room temperature overnight. After evaporation of the solvent, 20 ml of water were added and acidified with 1 mol of hydrochloric acid, and the aqueous phase was extracted with 50 ml of diethyl ether. The residue obtained after drying with sodium sulfate and after removal of the solvent was separated by column chromatography (cyclohexane/ethyl acetate 6:1).
