Abstract
Bis(1-phenylpyrazole-4-carboxaldehydes) were utilized as versatile precursors to novel series of bis(pyrido[2,3-d:6,5-d']dipyrimidines), bis(pyrimido[4,5-b]quinolines), and bis(benzo[4,5]imidazo[2,1-b]quinazolines) derivatives which are linked to pyrazole units.
Graphical Abstract
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