Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its stereochemistry allows for selective interactions in drug design, enhancing potency and reducing side effects. Commonly employed in peptide mimetics and as an intermediate in the preparation of cyclopentane-based scaffolds for antiviral and central nervous system agents. The Boc-protected amine group enables easy deprotection and further functionalization in multi-step organic syntheses.