This compound is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a protected amino acid derivative, where the Fmoc group protects the amino group, and the Boc group protects the side chain of lysine. This protection ensures selective reactions during peptide chain assembly, preventing unwanted side reactions. It is especially useful in the synthesis of complex peptides and proteins, where precise control over the sequence and structure is required. Its application is common in pharmaceutical research, biotechnology, and the development of therapeutic peptides. The isopropyl (ipr) group provides additional stability and selectivity during the synthesis process.