Used as an intermediate in pharmaceutical synthesis, particularly in the development of bioactive molecules and central nervous system agents. Its spirocyclic structure and protected amine functionalities make it valuable for constructing complex nitrogen-containing compounds. Commonly employed in medicinal chemistry for lead optimization, especially in the design of receptor modulators and enzyme inhibitors. The tert-butyl carbamate (Boc) group allows for selective deprotection and further functionalization, enabling stepwise assembly of drug-like molecules.