Used in peptide synthesis, particularly in the production of modified therapeutic peptides and research compounds. Its D-configuration enhances metabolic stability, making it valuable in designing peptides with improved resistance to enzymatic degradation. The Fmoc group allows for solid-phase synthesis by enabling stepwise assembly under mild basic conditions. The carbamoyl side chain can participate in hydrogen bonding or be further functionalized, useful in creating enzyme inhibitors or receptor ligands. Commonly applied in medicinal chemistry for developing bioactive molecules with enhanced pharmacokinetic properties.