Used primarily in peptide synthesis as a protecting group for glutamic acid. The Boc (tert-butoxycarbonyl) group safeguards the amino group, while the OBzl (benzyl ester) protects the carboxyl group, allowing selective reactions at other sites. Commonly employed in solid-phase peptide synthesis to build complex peptides with precision. Also utilized in the preparation of modified peptides and peptidomimetics for drug discovery and biochemical research. Its stability under various reaction conditions makes it a valuable tool in organic and medicinal chemistry.