Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of bioactive molecules targeting central nervous system disorders. Its spirocyclic structure and functional groups make it valuable for constructing complex amines in drug discovery. Commonly employed in medicinal chemistry for building blocks that require constrained ring systems to enhance metabolic stability and receptor selectivity. Also utilized in the preparation of protease inhibitors and receptor modulators due to its favorable stereochemistry and ability to mimic peptide motifs.