Used as a chiral building block in the synthesis of biologically active compounds, particularly in pharmaceutical development. Its protected amine and hydroxymethyl functional groups allow selective modification, making it valuable in constructing complex molecules such as kinase inhibitors, antiviral agents, and CNS-active drugs. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its stereochemical purity and ability to introduce conformational constraint in drug candidates.