(3S,5S,6R) -Navtemadlin is the isomer of Navtemadlin , and can be used as an experimental control. Navtemadlin (AMG 232) is a potent, selective and orally available inhibitor of p53-MDM2 interaction, with an IC50 of 0.6 nM. Navtemadlin binds to MDM2 with a Kd of 0.045 nM[1][2].