Used as a key intermediate in the synthesis of biologically active compounds, particularly in the development of peptidomimetics and pharmaceuticals. Its structure allows incorporation into peptide chains to modify stability, selectivity, and binding properties. Commonly employed in solid-phase peptide synthesis due to the Fmoc group, which enables mild deprotection conditions. The trifluoromethylphenyl moiety enhances lipophilicity and metabolic stability, making it valuable in drug design for improved pharmacokinetics. Also utilized in research for creating enzyme inhibitors and receptor ligands.