Potassium Hydroxide → 6-[(4,6-Dimethoxypyrimidin-2-yl)oxy]quinolin-5-carboxylic Acid

Beteiligte Stoffe

Reaktionsschritte

0.8 g of methyl 6-[(4,6-dimethoxypyrimidin-2-yl)oxy]quinolin-5-carboxylate was dissolved in 10 ml of methanol and 20 ml of methoxyethane, and 5 ml of an aqueous solution containing 0.39 g of potassium hydroxide was added thereto at 40° C. The mixture was extracted with dichloromethane. The aqueous layer was acidified (pH=4) with a 10% hydrochloric acid aqueous solution, and formed precipitates were collected by filtration and dried to obtain 0.5 g (yield: 66.0%) of the desired compound. mp: 195°-198° C.

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