Potassium Carbonate → HCID 66970102, compound

Participants

Reaction Conditions

Reaction Steps

(Step 2) A suspension of 2-cyano-2-(3,4-dichloro-5-oxo-2,5-dihydrofuran-2-yl)acetamide (0.4 g), 2-(aminomethyl)-4-fluoro-N-(2-methoxyethyl)benzenesulfonamide obtained in Step 1 (0.61 g) and potassium carbonate (0.71 g) in ethanol (10 ml) was stirred overnight at 70° C. The reaction solution was filtered through celite, and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (ethyl acetate:hexane=7:3→1:0). The obtained residue was dissolved in methanol, 4N hydrogen chloride-ethyl acetate solution (1 ml) was added, and the mixture was crystallized from methanol-ethyl acetate. The precipitated crystals were collected by filtration, and recrystallized from methanol-ethyl acetate to give the title compound (0.29 g).

Provenance & Evidence