Used as a key chiral intermediate in the synthesis of antiviral drugs, particularly in the production of nucleoside analogs. Its stereochemistry allows for selective reactions in multi-step organic syntheses, making it valuable in pharmaceutical development. Commonly employed in the preparation of protease inhibitors and other bioactive molecules where precise 3D structure is critical for activity. The Boc-protected amine and ester functionalities enable further chemical modifications, facilitating its incorporation into complex drug candidates.