Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and central nervous system agents. Its spirocyclic structure and protected amine functionalities make it valuable for constructing complex heterocyclic compounds in drug discovery. Commonly employed in medicinal chemistry for scaffold diversification due to its rigidity and ability to present functional groups in defined spatial orientations. Also utilized in the preparation of bioactive molecules requiring constrained diamine motifs, supporting improved metabolic stability and target selectivity.