Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of beta-lactam antibiotics and other biologically active molecules. Its protected amine group allows for selective reactions in multi-step organic syntheses. Commonly employed in medicinal chemistry for constructing nitrogen-containing heterocycles, which are prevalent in drug candidates targeting CNS disorders, metabolic diseases, and infectious conditions. The BOC-protected azetidine scaffold enhances stability and solubility during peptide coupling and cross-coupling reactions. Widely utilized in research settings for building blocks in combinatorial chemistry and high-throughput screening libraries.