Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of central nervous system (CNS) agents. Its spirocyclic structure and protected amine group make it valuable in medicinal chemistry for constructing complex molecules with improved metabolic stability and bioavailability. Commonly employed in the preparation of receptor modulators, including those targeting serotonin and dopamine receptors. The tert-butyl carbamate (Boc) group allows for selective amine protection during multi-step syntheses, enabling controlled functionalization in drug design.