Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of bioactive molecules and drug candidates. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for building complex organic frameworks. Commonly employed in the preparation of protease inhibitors and other therapeutic agents where a protected amine with a constrained cyclobutane backbone is required. Also utilized in research settings for the design of novel analogs in structure-activity relationship (SAR) studies.