Used as a key intermediate in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) for the production of peptides and proteins. The Boc (tert-butyloxycarbonyl) protecting group safeguards the amino group during the synthesis process, allowing selective deprotection and coupling of amino acids. It is widely applied in the development of pharmaceuticals, including therapeutic peptides, hormones, and enzyme inhibitors. Additionally, it plays a role in research for studying protein structure and function, as well as in the creation of peptide-based vaccines and diagnostics.