Water → 2-(Quinoxalin-6-yl)-1-(4-(3-(trifluoromethyl)-phenyl)piperidino)ethanone

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Reaction Steps

0.48 g (2.55 mmol) of quinoxalin-6-ylacetic acid is mixed in 25 ml of DMF, and 1.07 ml of TEA, 0.68 g (2.55 mmol) of 4-(3-(trifluoromethyl)phenyl)piperidine hydrochloride and 1.13 mg of BOP are added thereto. The mixture is heated at ambient temperature overnight, 200 ml of water are added and extraction is carried out with ethyl acetate. The organic phase is dried over sodium sulfate and filtered, and the solvent is evaporated under reduced pressure. A dark oil is thus obtained, which oil is purified by flash chromatography on a column of silica gel, elution being carried out with ethyl acetate. 0.76 g of the title product is obtained in the form of a yellow oil.

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