Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of central nervous system agents and enzyme inhibitors. Its fluorinated aromatic structure and stereochemistry make it valuable for enhancing metabolic stability and binding selectivity in drug candidates. Commonly employed in the preparation of bioactive molecules where the (S)-enantiomer contributes to desired pharmacological activity. Also utilized in medicinal chemistry research for structure-activity relationship studies due to its rigid pyrrolidine scaffold and electron-withdrawing fluorophenyl group.