BOC-(S)-3-AMINO-4-(4-TRIFLUOROMETHYL-PHENYL)-BUTYRIC ACID is primarily used in the synthesis of pharmaceuticals and bioactive compounds. It serves as a key intermediate in the development of peptide-based drugs, particularly those targeting specific receptors or enzymes. The compound is often employed in medicinal chemistry research to create analogs with potential therapeutic effects, such as enzyme inhibitors or receptor modulators. Its trifluoromethyl group enhances the stability and bioavailability of the resulting molecules, making it valuable in drug discovery. Additionally, it is utilized in the preparation of chiral compounds, leveraging its stereochemistry to produce enantiomerically pure substances for advanced pharmaceutical applications.