Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in cross-coupling reactions and nucleophilic substitutions to introduce pyridine-based scaffolds into drug candidates. Also utilized in the preparation of PROTACs (proteolysis-targeting chimeras) due to its ability to link targeting ligands with E3 ligase binders.