Used as a key intermediate in the synthesis of biologically active compounds, particularly in pharmaceuticals targeting central nervous system disorders. Its cyclobutane backbone with defined stereochemistry makes it valuable for constructing constrained peptide analogs and small molecule drugs. The amine and ester functionalities allow for further chemical modifications, enabling its incorporation into more complex structures. Commonly utilized in medicinal chemistry for structure-activity relationship (SAR) studies due to its rigid framework that can enhance target selectivity and metabolic stability.