Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of central nervous system (CNS) agents. It serves as a building block for bioactive molecules due to its ability to undergo selective functionalization at the bromine site, enabling coupling reactions such as Suzuki or Buchwald-Hartwig aminations. Its rigid dihydroisoquinolinone core supports structural stability and binding affinity in drug candidates. Commonly applied in research settings for generating compound libraries aimed at targeting neurological disorders and inflammation-related pathways.