Triethylamine → 4-chloro-2-(ethoxymethyl)-1-[(3-methylisoxazol-5-yl)methyl]-1H-imidazo[4,5-c]quinoline

関与物質

反応手順

N-Hydroxyethanimidoyl chloride (prepared as described in Part D of Example 1, 2.10 g, 22.5 mmol) was added to a solution of 4-chloro-2-(ethoxymethyl)-1-prop-2-ynyl-1H-imidazo[4,5-c]quinoline prepared as described in Part D of Example 3, 5.39 g, 18.0 mmol) and triethylamine (3.70 mL, 27.0 mmol) in dichloromethane (60 mL). The solution was heated at reflux for 16 hours and then was concentrated under reduced pressure. The crude product was purified by flash chromatography (silica gel, gradient elution from 7:3 to 2:3 hexanes/ethyl acetate) to provide 4-chloro-2-(ethoxymethyl)-1-[(3-methylisoxazol-5-yl)methyl]-1H-imidazo[4,5-c]quinoline (4.21 g) as a white solid.

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