Fmoc-3-(1-naphthyl)-D-alanine is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. The Fmoc (fluorenylmethyloxycarbonyl) group serves as a protective group for the amino acid during the synthesis process, ensuring selective deprotection and coupling steps. The 1-naphthyl side chain introduces aromatic and hydrophobic characteristics, making it valuable in designing peptides with specific structural and functional properties. This compound is often employed in the development of peptidomimetics, enzyme inhibitors, and bioactive peptides for pharmaceutical research. Its unique structure allows for the exploration of interactions with proteins and other biomolecules, aiding in drug discovery and the study of biological pathways. Additionally, it is utilized in the synthesis of peptide-based materials for applications in biotechnology and nanotechnology.