Used in pharmaceutical synthesis as a building block for drug development, particularly in creating compounds with nitrogen-containing heterocycles. Its protected amine group allows for selective reactions in multi-step organic syntheses. Commonly employed in the preparation of bioactive molecules, including kinase inhibitors and CNS-targeted therapeutics. The azetidine ring enhances metabolic stability and solubility in final drug candidates. Suitable for solid-phase and solution-phase peptide-like assembly due to compatibility with various coupling reagents.