(E/Z)-Teriflunomide ((E/Z)-A77 1726) is the active metabolite of
Leflunomide (HY-B0083). Leflunomide is an immunomodulatory agent that may exert effects by inhibiting the mitochondrial enzyme dihydroorotate dehydrogenase (DHODH). Leflunomide can be used for the research of rheumatoid arthritis (RA).