Triethylamine → HCID 59971431, compound

Participants

Reaction Steps

A solution of (Z)-4-(3-aminophenyl)-1,3-dihydro-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one hydrochloride (25 mg, 0.074 mmol) (from Example 5 supra) and Et3N (21 μL , 0.148 mmol) in 3 mL of chloroform was treated with 4-fluorobenzoyl chloride (10.5 μL , 0.088 mmol) (Aldrich). The resulting reaction mixture was stirred at room temperature for 8 h and then directly purified by flash chromatography (Merck Silica gel 60, 230-400 mesh, 50% ethyl acetate-hexanes elution) to provide pure (Z)-N-[3-[2,3-dihydro-2-oxo-3-[(1H-pyrrol-2-yl)methylene]-1H-indol-4-yl]-phenyl]-4-fluorobenzamide (yield: 26 mg, 83%) as a yellow solid (mp 130-131° C.).

Provenance & Evidence