Used as a chiral building block in the synthesis of biologically active compounds, particularly in the development of pharmaceuticals. Its amine and ester functionalities allow for selective derivatization, making it valuable in peptidomimetic research and the preparation of enzyme inhibitors. The (R)-configuration enables stereocontrolled reactions, which is critical in drug design where enantiopurity affects efficacy and safety. Commonly employed in multi-step organic syntheses to introduce functionalized amino acid motifs into larger molecules.