反应详情

5-amino-3-(pyridin-3-ylamino)-1H-pyrazole-4-carboxamide (1.0 g) was suspended in EtOH (10 mL) and 3-hydroxybenzaldehyde (559 mg, 1 eq.) and piperidine (10 drops) were added. Stirred at reflux until intermediate was absent (HPLC). After reaction was complete (18 hrs) it was brought to room temperature and filtered to obtain 5-((3-hydroxybenzylidene)amino)-3-(pyridin-3-ylamino)-1H-pyrazole-4-carboxamide as a yellow powder. Powder was washed with EtOH. Product was allowed to dry under vacuum for 1 hr (800 mg, 55% yield).

1. temperatureat reflux until intermediate
2. customAfter reaction
3. custom(18 hrs) it
4. customwas brought to room temperature
5. filtrationfiltered