Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and antiviral agents. Its structure allows for selective functionalization, making it valuable in constructing complex drug molecules. Commonly employed in cross-coupling reactions such as Suzuki or Buchwald-Hartwig aminations to form carbon-carbon or carbon-nitrogen bonds. Also utilized in agrochemical research for designing novel pesticides and herbicides due to its stable pyridine core and reactive halogen sites.