Used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS), as a building block for introducing N-methyl norvaline residues into peptide chains. It is valuable in the development of modified peptides with enhanced stability, bioavailability, or specific biological activity. Commonly applied in pharmaceutical research for creating peptide-based drugs and in biochemical studies to explore peptide structure-function relationships. Its Fmoc protecting group allows for selective deprotection during synthesis, enabling precise control over peptide assembly.