Heterocycles are the main structural motif of DNA and RNA and play crucial role in various chemical reactions of metabolisms. Therefore, heterocyclic compounds show good physiological and pharmacological properties. Coumarin and pyrazole scaffold present in many commercial drug molecules and natural products. This review gives first time gives an overview of the progress made in the synthesis and functionalization of coumarin-pyrazole hybrid heterocycle. It also includes discussion on the possible reactive sites of heterocycles, functionalization and mechanistic pathways to incorporate pyrazole pharmacophore unit in synthesis. Several synthesis and biological studies revealed that combination of coumarin-pyrazole moiety is a prominent structural motif to find lead compounds in drug discovery.
Keywords: Coumarin-pyrazole, Vilsmeier-Haack, formylation, multicomponent reactions, heterocycles, DNA.
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