Used in the synthesis of peptide-based pharmaceuticals, particularly in the development of protease inhibitors and targeted cancer therapies. Its structure supports the design of molecules that mimic natural peptide substrates, enhancing binding affinity to specific enzymes. Commonly employed in research for drug delivery systems due to its biocompatibility and ability to link functional groups in multifunctional therapeutics. Also utilized in biochemical studies to probe enzyme mechanisms and protein-protein interactions.