Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. Its protected amine group allows for selective reactions in multi-step organic syntheses, making it valuable in medicinal chemistry. The azetidine ring contributes to improved metabolic stability and solubility in drug candidates. Commonly employed in the preparation of protease inhibitors and CNS-active agents due to its favorable pharmacokinetic properties.