Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) requiring stereochemical control. Its free hydroxyl group and protected amine (Boc) functionality make it valuable in multi-step organic syntheses, especially in the preparation of kinase inhibitors and other bioactive molecules. Commonly employed in medicinal chemistry for constructing complex heterocyclic systems due to its structural stability and compatibility with various coupling reactions.