Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and other bioactive molecules. Its structure allows for selective modification in peptide-based drug design, making it valuable in medicinal chemistry research. Commonly employed in solid-phase and solution-phase peptide synthesis due to the stability and ease of deprotection of the Boc (tert-butoxycarbonyl) group. Also utilized in the preparation of enzyme inhibitors where naphthyl functionality enhances binding affinity to target proteins.