Used as a key chiral intermediate in the synthesis of pharmaceuticals, particularly in the production of serotonin-norepinephrine reuptake inhibitors (SNRIs) like duloxetine. Its enantiomerically pure structure enables efficient and selective drug synthesis, improving the therapeutic efficacy and reducing side effects in final active pharmaceutical ingredients. Commonly employed in asymmetric synthesis routes due to the presence of both amine and ester functionalities, which allow for further chemical modifications. Widely utilized in the development of antidepressants and treatments for chronic pain.