Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antitumor and antimicrobial agents. Its structure supports the creation of complex heterocyclic compounds that interact with biological targets such as enzymes and receptors. Commonly employed in medicinal chemistry for designing kinase inhibitors and central nervous system active drugs. Also utilized in research for developing novel alkaloid-based therapeutics due to its resemblance to natural isoquinoline alkaloids.