Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and other bioactive molecules. Its functional groups—hydroxyl, carboxylic acid, and protected amine—allow for selective chemical modifications, making it valuable in medicinal chemistry for building complex cyclic structures. Commonly employed in solid-phase and solution-phase peptide synthesis due to the stability and orthogonality of the Boc-protected amine. Also utilized in the preparation of conformationally constrained analogs for structure-activity relationship (SAR) studies.