Diisopropylethylamine → (S)-methyl 4-(1-(1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperidin-4-yl)-2-oxopyrrolidin-3-yloxy)-3-fluorobenzoate

Participants

Reaction Steps

To a solution of (S)-methyl 3-fluoro-4-(2-oxo-1-(piperidin-4-yl)pyrrolidin-3-yloxy)benzoate hydrochloride (0.1 g, 0.29 mmol) in DMF (10 mL) was added N-ethyl-N-isopropylpropan-2-amine (0.543 mL, 2.97 mmol) and 2,3-dichloro-5-(trifluoromethyl)pyridine (0.193 g, 0.892 mmol) and the reaction was stirred overnight at ambient temperature. The reaction was diluted with EtOAc (50 mL) and washed with water (20 mL), and brine (20 mL), dried over MgSO4, filtered and concentrated under vacuum. The material was purified on silica, using a gradient of DCM to 10% EtOAc/DCM as eluent to yield (S)-methyl 4-(1-(1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)piperidin-4-yl)-2-oxopyrrolidin-3-yloxy)-3-fluorobenzoate (0.10 g, 63% yield).

Provenance & Evidence