Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its spirocyclic structure and protected amine functionality make it valuable in medicinal chemistry for constructing complex nitrogen-containing heterocycles. Commonly employed in asymmetric synthesis and as an intermediate in the preparation of neuroactive compounds, including those targeting central nervous system disorders. The tert-butyl carbamate (Boc) group allows for selective deprotection and further functionalization, enabling stepwise assembly of multi-step synthetic routes in drug discovery.