1-Aminoisoquinoline is widely used in the field of medicinal chemistry as a key building block for the synthesis of various pharmaceutical compounds. It serves as a precursor in the development of drugs targeting neurological disorders, including Alzheimer's disease, due to its ability to interact with specific enzymes and receptors in the brain. Additionally, it is employed in the creation of anti-inflammatory and anticancer agents, where its structural framework enhances the efficacy of the resulting molecules. In research, 1-aminoisoquinoline is utilized to study enzyme inhibition mechanisms and to design novel therapeutic agents with improved selectivity and potency. Its versatility also extends to organic synthesis, where it acts as an intermediate in the production of complex heterocyclic compounds.