Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of central nervous system agents. Its structure supports the creation of selective serotonin reuptake inhibitors (SSRIs) and other neuromodulatory drugs. The amine group allows for salt formation to improve stability and bioavailability, while the chiral center enables targeted interactions with biological receptors, enhancing drug efficacy and reducing side effects. Commonly employed in asymmetric synthesis routes where stereochemistry is critical for activity.