Used primarily as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of certain central nervous system agents and antiviral drugs. Its rigid cyclopropane structure combined with the reactive aminomethyl group makes it valuable for constructing bioactive molecules with enhanced metabolic stability and target selectivity. It is also employed in the development of novel receptor agonists and antagonists, where the cyclopropane ring contributes to conformational restriction, improving potency and specificity. Additionally, it finds use in medicinal chemistry research for structure-activity relationship (SAR) studies due to its unique steric and electronic properties.