2-Pyrazinecarboxylic acid → HCID 69269313, compound

Participants

Reaction Steps

Mix 3-(6-Fluoro-2,3-dihydrobenzofur-7-yl)-4-[1-(piperidin-4-yl]-1H-indol-3-yl)pyrrole-2,5-dione (180 mg, 0.42 mmol) in dimethylformamide with triethyl amine (0.2 mL, 1.4 mmol), 2-pyrazinecarboxylic acid (57 mg, 0.46 mmol), N-(3-dimethylaminopropyl)-N′-ethylcarbodiimid hydrochloride (106 mg, 0.55 mmol), and 1-hydroxybenzotriazole (74 mg, 0.55 mmol). Stir the reaction mixture at ambient temperature for 18 hours. Dilute with ethyl acetate, and wash the organic layer with water/brine (×4). Dry over magnesium sulfate and concentrate. Purify by chromatography (silica gel; hexane/EtOAc; 1:1 to 0:1) to give an orange solid (105 mg, 49%). MS (MSI) m/z 538 (M+H)+.

Provenance & Evidence