Triethylamine → 5-[3-[2-(Phenyl)ethylcarbonyloxy]propylthio]imidazo[1,2-a]pyridine

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반응 단계

To a solution of 5-[3-(hydroxy)propylthio]imidazo[1,2-a]pyridine (1.00 g, 4.80 mmoles) and triethylamine (0.80 ml, 5.74 mmoles) in methylene chloride (25 ml) was added 3-phenylpropionyl chloride (1.01 g, 5.99 mmoles) with stirring at room temperature and the mixture was further stirred at room temperature for 2 hours. The reaction mixture was washed with an aqueous 1N sodium hydroxide solution and dried. After the solvent was distilled off, the residue was purified by column chromatography [eluent: hexane/acetone (1:1)] to obtain 1.37 g of the desired product (84.2%, yellow oily product).

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