Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of central nervous system agents and antidepressants. Its enantiomeric purity makes it valuable for creating active ingredients with high selectivity and reduced side effects. Commonly employed in asymmetric synthesis to introduce a fluorinated aromatic amine moiety into drug candidates. Also utilized in the preparation of serotonin and norepinephrine reuptake inhibitors due to its structural compatibility with biologically active molecules targeting neurotransmitter receptors.