Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and antitumor agents. Its functional groups—azide, hydroxyl, and Boc-protected nitrogen—allow selective modifications, making it valuable in medicinal chemistry for building complex nitrogen-containing heterocycles. Commonly employed in click chemistry reactions via azide-alkyne cycloaddition to rapidly generate compound libraries for drug discovery. Also utilized in the preparation of protease inhibitors and other bioactive molecules where precise stereochemistry is critical for activity.