Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where spirocyclic amines act as structural motifs. Its protected amine functionality allows for selective reactions in multi-step organic syntheses. Commonly employed in the preparation of kinase inhibitors and neuroactive compounds due to the stability and steric profile of the tert-butyl carbamate group. Also utilized in medicinal chemistry for scaffold diversification in drug discovery programs.