Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its azide group allows for further functionalization via click chemistry, making it valuable in medicinal chemistry for rapid compound diversification. The Boc-protected amine ensures stability during reactions and enables selective deprotection for peptide coupling or heterocycle formation. Commonly employed in asymmetric synthesis to introduce stereochemical control in drug candidates.