Pyridine → HCID 86633665, compound

Participants

Reaction Steps

A solution of 290 milligrams (0.504 mmole) of ethyl 1-[(tert-butyl)oxycarbonyl]-4-{bis[4-(trifluoromethyl)phenyl]hydroxymethyl}piperidine-4-carboxylate, 110 μL (1.513 mmole) of thionyl chloride, and 408 μL (5.04 mmole) of pyridine in 5 mL of methylene chloride was stirred at ambient temperature for 1 hour. The reaction mixture was then poured into 25 mL of an aqueous solution saturated with sodium bicarbonate, and the mixture was extracted with three 50 mL portions of ethyl acetate. The combined extracts were dried with sodium sulfate, filtered and concentrated under reduced pressure to a residue. The residue was purified with column chromatography on silica gel using 1:10 ethyl acetate:hexane as an eluant. The appropriate fractions were combined and concentrated under reduced pressure, yielding 240 milligrams of the subject compound. The NMR spectrum was consistent with the proposed structure.

Provenance & Evidence