Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive compounds. Its protected amine group and ester functionality make it valuable in peptide-like chain elongation and in constructing constrained ring systems. Commonly employed in medicinal chemistry for developing enzyme inhibitors or receptor modulators where a rigid cyclobutane scaffold is needed to influence conformational stability. The tert-butoxycarbonyl (Boc) protecting group allows for selective deprotection under mild acidic conditions, enabling stepwise synthesis in complex molecule assembly.