Used in peptide synthesis as a protected amino acid building block. The Boc (tert-butoxycarbonyl) group protects the amine functionality, while the carboxylic acid is typically activated for coupling. The N-methyl and threonine components introduce structural constraints and influence peptide conformation, making it valuable in the development of bioactive peptides and pharmaceuticals. Commonly employed in solid-phase and solution-phase synthesis to construct complex molecules with enhanced metabolic stability and specific folding patterns.