Used as a key chiral building block in the synthesis of pharmaceuticals, particularly in the development of central nervous system (CNS) agents and enzyme inhibitors. Its strained cyclobutane ring and functional group positioning make it valuable for modifying metabolic stability and binding affinity in drug candidates. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its conformational rigidity and stereochemical control. Also utilized in the preparation of bioactive molecules where a small, polar ring system is needed to enhance solubility and reduce lipophilicity.