This compound is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a protected amino acid derivative, where the Fmoc (fluorenylmethyloxycarbonyl) group acts as a temporary protecting group for the amine functionality during the synthesis process. The 4-(4-fluorobenzyl) substitution on the pyrrolidine ring can influence the peptide's conformational properties, potentially enhancing its biological activity or stability. This chemical is especially valuable in the development of peptide-based pharmaceuticals, where precise control over amino acid incorporation is crucial. Its application is also relevant in research focused on designing peptides with specific structural or functional properties, such as enzyme inhibitors or receptor ligands.