反应详情

Ethanol (5 mL) and 5 N aqueous sodium hydroxide (10 mL) were added to 2-amino-5-(1-ethyl-6-oxo-1,6-dihydro-3-pyridinyl)-6-(2-furyl)nicotinonitrile (308 mg, 1.01 mmol), followed by heating under reflux for 4 hours. After cooling as it was, the reaction solution was neutralized with 5 N hydrochloric acid. The resulting solid was collected by filtration and then washed with water, to give the title compound (320 mg, 98%) as a yellow solid.

1. temperatureby heating
2. temperatureunder reflux for 4 hours
3. temperatureAfter cooling as it
4. filtrationThe resulting solid was collected by filtration
5. washwashed with water