Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of bioactive molecules with nitrogen-containing heterocyclic structures. Its strained azetidine ring and reactive exocyclic double bond make it valuable for constructing complex organic frameworks through cycloadditions, nucleophilic additions, or cross-coupling reactions. Commonly employed in medicinal chemistry for building blocks in drug discovery programs, especially for protease inhibitors and receptor modulators. The tert-butyloxycarbonyl (Boc) protecting group allows for selective amine manipulation in multi-step syntheses, enhancing compatibility with various reaction conditions.