Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its stereochemistry and protected amine group make it valuable for constructing complex molecules with high enantioselectivity. Commonly employed in medicinal chemistry for peptidomimetics and as an intermediate in the preparation of enzyme inhibitors. The Boc-protected amine allows for controlled deprotection and coupling in multi-step organic syntheses.