反应详情

温度

70 °C

To 5-(4-(4-methylpiperazin-1-yl)phenylamino)pyrazolo[1,5-a]pyrimidine-3-carbaldehyde (56 mg, 0.167 mmol) in EtOH was added hydantoin (17 mg, 0.167 mmol) and piperidine (17 μL, 0.167 mmol). The mixture was heated at 70° C. Solvent was removed under reduced pressure and then the solid was redissolved in MeOH and sonicated. Insolubilities were filtered off and the filtrate was purified by HPLC to yield 5-((5-(4-(4-methylpiperazin-1-yl)phenylamino)pyrazolo[1,5-a]pyrimidin-3-yl)methylene)imidazolidine-2,4-dione. LCMS (M+1=419)

1. customSolvent was removed under reduced pressure
2. dissolutionthe solid was redissolved in MeOH
3. customsonicated
4. filtrationInsolubilities were filtered off
5. customthe filtrate was purified by HPLC