Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules and drug candidates. Its spirocyclic structure and protected amine functionalities make it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in the preparation of kinase inhibitors and central nervous system agents due to its favorable stereochemistry and ability to enhance metabolic stability. Also utilized in combinatorial chemistry and library design for high-throughput screening.