Used as a protected amine building block in organic synthesis, particularly in pharmaceutical and agrochemical research. The cyano group allows for further functionalization, such as conversion to carboxylic acids or tetrazoles, while the tert-butoxycarbonyl (Boc) group provides stability and controlled deprotection under mild acidic conditions. Its cyclopropyl core adds structural rigidity, making it valuable in the design of bioactive molecules where conformational constraint is needed. Commonly employed in the synthesis of peptidomimetics and kinase inhibitors.