Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of sulfur- and nitrogen-containing heterocyclic drugs. Its spirocyclic structure and functional groups make it valuable for constructing complex molecules with biological activity. Commonly employed in medicinal chemistry for optimizing drug candidates targeting central nervous system disorders and inflammatory diseases. The tert-butyl carboxylate group allows for easy deprotection and further derivatization, enabling rapid exploration of structure-activity relationships. Also utilized in agrochemical research for designing novel bioactive molecules.