Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and antiviral agents. Its strained oxetane ring and nitrile functionality make it valuable for modifying molecular properties such as metabolic stability and solubility in drug candidates. The benzylamino group allows for further derivatization, enabling the construction of complex molecules in medicinal chemistry research. Commonly employed in late-stage functionalization to improve potency and pharmacokinetic profiles.