Widely used in peptide synthesis, this compound serves as a protected amino acid derivative, enabling selective coupling reactions in solid-phase and solution-phase peptide assembly. Its Fmoc group allows for mild base-labile protection of the amine functionality, while the tert-butoxycarbonyl (Boc) group stabilizes the aromatic amine during synthesis. This dual protection strategy is essential for constructing complex peptides with high purity and minimal side reactions. It is particularly valuable in the preparation of biologically active peptides and peptidomimetics used in pharmaceutical research and drug development.