Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of central nervous system agents and antidepressants. Its stereochemistry makes it valuable for creating enantiomerically pure drugs. Commonly employed in the preparation of active pharmaceutical ingredients where the (S)-enantiomer exhibits desired biological activity. Also utilized in the research and development of novel therapeutic compounds requiring rigid structural motifs due to the cyclopropyl group, enhancing metabolic stability and target selectivity.