Water → HCID 18739876, compound

Participants

Reaction Steps

To a stirred solution of (1S,2R,3S,4R)-3-(1-benzothien-5-yl)-N,N-dimethylbicyclo [2,2,1]heptane-2-carboxamide (200 mg, 0.67 mmol) in dry tetrahydrofuran (5 mL) at −78° C. was added lithium diisopropylamide (1.67 mL, 3.35 mmol). The mixture was stirred at this temperature for 1 hour before N-fluorobenzene sulfonimide (2.3 mL, 3.35 mmol) was added. The mixture was stirred for another 10 minutes at this temperature before it was allowed to warm to room temperature. After 1 hour, water was added and the layers were separated. The aqueous phase was extracted with ethyl acetate (2×10 mL) and the extracts were washed with water (2×10 mL) dried over magnesium sulphate and evaporated in-vacuo. Column chromatography with 20% ethyl acetate in hexane provided (1S,2R,3S,4R)-3-(2-fluoro-1-benzothien-5-yl)-N,N-dimethylbicyclo[2,2,1]heptane-2-carboxamide.

Provenance & Evidence