Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and other bioactive molecules. Its spirocyclic structure and protected amine groups make it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in research settings to build novel drug candidates targeting cancer, inflammation, and central nervous system disorders. The tert-butyl carbamate (Boc) protection allows for selective deprotection and further functionalization during multi-step syntheses.