Used as a building block in organic synthesis, particularly in the development of pharmaceuticals and biologically active compounds. It serves as an intermediate in the preparation of isoquinoline-based drugs, which are known for their antimicrobial, antiviral, and anticancer properties. Its structure allows for easy functionalization, making it valuable in medicinal chemistry for designing enzyme inhibitors and receptor ligands. Also employed in research settings to develop novel heterocyclic systems for drug discovery.