Used primarily in peptide synthesis as a protected amino acid derivative, enabling selective coupling reactions without interference from reactive side chains. The Boc (tert-butoxycarbonyl) group acts as a temporary protecting group for the amine functionality, allowing stepwise assembly of complex peptides. After coupling, the Boc group can be easily removed under mild acidic conditions, leaving other protecting groups intact. This makes it valuable in solid-phase and solution-phase peptide synthesis, especially in the production of pharmaceuticals and bioactive peptides. Also utilized in the synthesis of peptidomimetics and as an intermediate in the development of protease inhibitors.