A771726, der er leflunomids aktive metabolit, hæmmer det humane enzym dihydroorotatdehydrogenase (DHODH) og udviser antiproliferativ aktivitet.
A771726, the active metabolite of leflunomide, inhibits the human enzyme dihydroorotate dehydrogenase (DHODH) and exhibits antiproliferative activity.