Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and other bioactive molecules. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for creating compounds with targeted biological activity. Commonly employed in cross-coupling reactions, such as Suzuki or Buchwald-Hartwig, to build complex heterocyclic systems found in drug candidates. Also utilized in research settings for labeling and tracer studies due to the presence of iodine, which can be substituted with radioactive isotopes for imaging or mechanistic investigations.