The catalyst-free syntheses of pyrazolo[3,4-b]quinolin-5-one and pyrazolo[4â²,3â²:5,6]pyrido[2,3-d]pyrimidin-5,7-dione derivatives by one-pot, three-component reactions
Keywords: Arylglyoxals; Pyrazolo[3,4-b]quinolines; Pyrido[2,3-d]pyrimidines; One-pot; Multi-component reactions;