Used as a key intermediate in the synthesis of biologically active compounds, particularly in pharmaceuticals. Its protected amine and carboxylic acid functional groups make it valuable in peptide-like structure construction. Commonly employed in medicinal chemistry for developing protease inhibitors and other targeted therapies. The Boc-protected amine allows for controlled deprotection during multi-step syntheses, enabling selective coupling reactions. Its rigid cyclobutane backbone supports conformational restriction strategies to enhance potency and selectivity in drug candidates.