Triethylamine → HCID 66814539, compound

Participants

Reaction Conditions

Reaction Steps

Triethylamine (2.44 mL, 17.5 mmol) and ethyl isothiocyanate (0.92 g, 10.5 mmol) were sequentially added to a solution of 5,6-dimethyl-N4-(2-methylpropyl)-2-phenoxypyridine-3,4-diamine (2.5 g, 8.8 mmol) in pyridine (25 mL), and the reaction was heated for five minutes at 80° C. 1,(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (1.63 g, 10.5 mmol) was added, and the reaction was heated at 100° C. for two hours, allowed to cool to ambient temperature, and diluted with ethyl acetate. The resulting solution was washed sequentially with brine (2×) and saturated aqueous sodium bicarbonate (1×), dried over magnesium sulfate, filtered, and concentrated under reduced pressure to provide an oil. The crude product was purified by column chromatography on silica gel (eluting with 1-3% methanol in dichloromethane) to provide 1.73 g of N-ethyl-6,7-dimethyl-1-(2-methylpropyl)-4-phenoxy-1H-imidazo[4,5-c]pyridin-2-amine as an oil which solidified to white crystals upon standing overnight at ambient temperature.

Provenance & Evidence