PMID: 23597064

Authors:

Gonzalez-Lopez de Turiso F, Sun D, Rew Y, Bartberger MD, Beck HP, Canon J, Chen A, Chow D, Correll TL, Huang X, Julian LD, Kayser F, Lo MC, Long AM, McMinn D, Oliner JD, Osgood T, Powers JP, Saiki AY, Schneider S, Shaffer P, Xiao SH, Yakowec P, Yan X, Ye Q, Yu D, Zhao X, Zhou J, Medina JC, Olson SH

Title:

Rational Design and Binding Mode Duality of MDM2-p53 Inhibitors.

Journal:

J Med Chem. 2013 Apr 18.

Abstract:

Structural analysis of both the MDM2-p53 protein-protein interaction and several small molecules bound to MDM2 led to the design and synthesis of tetrasubstituted morpholinone 10, an MDM2 inhibitor with a biochemical IC50 of 1.0 muM. The co-crystal structure of 10 with MDM2 inspired two independent optimization strategies and resulted in the discovery of morpholinones 16 and 27 possessing distinct binding modes. Both analogs were potent MDM2 inhibitors in biochemical and cellular assays, and morpholinone 27 (IC50 = 0.10 muM) also displayed suitable PK profile for in vivo animal experiments. A pharmacodynamic (PD) experiment in mice implanted with human SJSA-1 tumors showed p21 induction (2-fold over vehicle) upon oral dosing of 27 at 300 mg/kg.