Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules and drug candidates targeting central nervous system disorders. Its strained cyclobutane ring enhances metabolic stability and influences conformational rigidity, making it valuable in medicinal chemistry for optimizing potency and selectivity. Commonly employed in the preparation of peptidomimetics and enzyme inhibitors due to its ability to mimic amino acid structures while resisting degradation. Also utilized in the design of novel receptor ligands where ring size affects binding affinity.