Used in solid-phase peptide synthesis to incorporate a protected, methylated ornithine residue into peptide chains. The Boc and Fmoc groups provide orthogonal protection for selective deprotection, enabling stepwise assembly of complex peptides. Commonly applied in the synthesis of modified bioactive peptides, including those with enhanced stability or receptor specificity. Its structure supports the study of peptide conformation and post-translational modifications, particularly in research related to epigenetics and signaling peptides.