Used in peptide synthesis as a chiral building block, particularly in the production of structurally modified peptides with enhanced metabolic stability. The alpha-methyl group restricts conformational flexibility, improving resistance to enzymatic degradation. Commonly employed in pharmaceutical research for developing peptidomimetics and bioactive molecules where stereochemistry and backbone modification are critical. The FMOC protection allows for solid-phase synthesis under mild basic conditions, making it compatible with automated peptide synthesizers.