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 functional groups make it valuable for constructing complex, three-dimensional molecular frameworks that enhance binding selectivity and metabolic stability in drug candidates. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies, especially in targeting neurological disorders such as depression, anxiety, and cognitive diseases. The tert-butyl carboxylate group allows for easy deprotection and further derivatization, enabling efficient synthesis of analogs in high-throughput drug discovery programs.