Used in pharmaceutical synthesis as an intermediate for bioactive compounds, particularly in the development of antitumor and antimicrobial agents. Its structure supports the creation of complex heterocyclic systems found in medicinal chemistry. Also employed in research settings to design kinase inhibitors and other targeted therapies. Shows utility in agrochemicals for developing novel pesticides due to its stability and reactivity. Commonly used in cross-coupling reactions to build functionalized isoquinoline derivatives for drug discovery.