Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where azetidine serves as a structural motif. 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 central nervous system disorders, metabolic diseases, and oncology. Also utilized in the preparation of building blocks for combinatorial chemistry and high-throughput screening.