Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of central nervous system (CNS) agents. It serves as a building block for compounds with potential antipsychotic, antidepressant, or anxiolytic activity. Its structure allows for easy functionalization, making it valuable in medicinal chemistry for creating novel heterocyclic compounds. Also employed in research settings to explore new bioactive molecules and in the preparation of isoquinoline-based drug candidates.