Used in the synthesis of pharmaceutical intermediates, particularly in the development of protease inhibitors and other bioactive molecules. Its chiral structure and protected functional group make it valuable in asymmetric synthesis and peptide modification. The trifluoromethylbenzyl moiety enhances lipophilicity and metabolic stability, which is beneficial in drug design for improving pharmacokinetic properties. Commonly employed in medicinal chemistry for constructing complex molecules with high stereochemical purity.