Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules and drug candidates. Its rigid, polycyclic structure with defined stereochemistry makes it valuable in medicinal chemistry for constructing chiral scaffolds. Commonly employed in the preparation of protease inhibitors and central nervous system agents due to its ability to mimic peptide motifs and enhance metabolic stability. Also utilized in asymmetric synthesis and as a building block in the design of novel heterocyclic compounds for biological screening.