Used as a chiral building block in the synthesis of pharmaceutical intermediates, particularly in the development of protease inhibitors and other bioactive molecules. Its fluorinated alkyl chain and stereospecific center enhance metabolic stability and binding selectivity in drug candidates. Commonly employed in peptide mimetics and structure-activity relationship studies where fluorine substitution improves pharmacokinetic properties. The Boc-protected amine allows for straightforward deprotection and coupling in solid-phase or solution-phase peptide synthesis.