Used as an intermediate in organic synthesis, particularly in the development of pharmaceuticals and biologically active compounds. Its spirocyclic structure and functional groups make it valuable for constructing complex molecules, especially in medicinal chemistry for designing enzyme inhibitors or receptor modulators. The tert-butyl and benzyl protecting groups allow selective deprotection and further derivatization, enabling stepwise synthesis in drug discovery. Commonly employed in the preparation of heterocyclic compounds with potential therapeutic activity.