Piperidine → HCID 59190201, compound

Participants

Reaction Steps

A solution of 5-chlorooxindole (668 mg, 4 mmol), 1-(5-(3-(4-methyl-1,4-diazepane-1-carbonyl)phenyl)furan-2-yl)ethanone (1.7 g of oil) and piperidine (394 μL, 4 mmol) in toluene (15 mL) was heated at reflux with a Dean-Stark receiver for 24 hours. After evaporation of the solvent, purification by silica column chromatography (methanol gradient in dichloromethane, 0 to 5% vol) gave (E)-5-chloro-3-(1-(5-(3-(4-methyl-1,4-diazepane-1-carbonyl)phenyl)furan-2-yl)ethylidene)indolin-2-one (800 mg) as a E:Z mixture. LCMS (ES): m/z 476 [M+1]+.

Provenance & Evidence