Used as a key intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research targeting kinase inhibitors. Its halogenated structure allows for selective cross-coupling reactions, enabling the introduction of various functional groups through palladium-catalyzed reactions like Suzuki or Heck couplings. This makes it valuable in the development of drug candidates for cancer and inflammatory diseases. The tosyl group serves as a protecting group for the nitrogen, which can be removed later to allow further functionalization. Also employed in the preparation of pyrrolopyridine-based small molecules for use in medicinal chemistry and agrochemical research.