Used primarily in pharmaceutical research as a chiral building block for the synthesis of biologically active compounds. Its rigid, polycyclic structure makes it valuable in the development of enzyme inhibitors and receptor ligands, particularly in neurology and antiviral drug design. The hydrochloride salt form enhances solubility and stability, facilitating use in aqueous reaction systems. Commonly employed in asymmetric synthesis to introduce stereochemical control. Also explored as an intermediate in the preparation of natural product analogs and central nervous system agents.