Used as a key intermediate in the synthesis of peptide-based pharmaceuticals, particularly in the development of protease inhibitors and other therapeutic agents targeting specific biological pathways. Its structure, featuring a trifluoromethyl group, enhances binding affinity and metabolic stability, making it valuable in drug discovery. Commonly employed in solid-phase peptide synthesis (SPPS) for the production of custom peptides with potential applications in cancer, antiviral, and anti-inflammatory treatments. The BOC protecting group ensures selective reactions during synthesis, improving yield and purity.