Boc-3-(2-naphthyl)-D-alanine is widely used in peptide synthesis as a protected amino acid derivative. Its Boc (tert-butyloxycarbonyl) group provides stability during the synthesis process, allowing for selective deprotection when needed. The compound is particularly valuable in creating peptides with specific structural or functional properties, especially in pharmaceutical research. Its naphthyl group contributes to hydrophobic interactions, making it useful in designing peptides that target protein-protein interactions or membrane-bound receptors. Additionally, it is employed in the development of bioactive peptides and peptidomimetics, which are essential in drug discovery and therapeutic applications.