Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of peptide-based drugs. Its structure supports the incorporation of non-natural amino acids into peptide chains, enhancing metabolic stability and biological activity. Commonly employed in solid-phase peptide synthesis where the Boc (tert-butoxycarbonyl) group acts as a protecting group for the amine functionality, allowing selective deprotection and coupling reactions. The cyclobutyl moiety can influence conformational rigidity, aiding in receptor selectivity and improving pharmacokinetic properties of the target molecule.