Used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS), as a building block for incorporating specific amino acid sequences. Its Fmoc group provides protection for the amine functionality during synthesis, ensuring selective reactions. The fluorophenyl moiety can enhance the binding affinity or stability of the resulting peptides, making it valuable in the development of peptide-based drugs or biochemical probes. Commonly applied in medicinal chemistry for designing peptides with targeted biological activities, such as enzyme inhibitors or receptor ligands.