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ACS Med Chem Lett. 2016 Jan 20;7(3):324-9. doi: 10.1021/acsmedchemlett.5b00472. eCollection 2016 Mar 10.

Discovery of Novel 3,3-Disubstituted Piperidines as Orally Bioavailable, Potent, and Efficacious HDM2-p53 Inhibitors.

ACS medicinal chemistry letters

Stéphane L Bogen, Weidong Pan, Craig R Gibeau, Brian R Lahue, Yao Ma, Latha G Nair, Elise Seigel, Gerald W Shipps, Yuan Tian, Yaolin Wang, Yinghui Lin, Ming Liu, Suxing Liu, Asra Mirza, Xiaoying Wang, Philip Lipari, Cynthia Seidel-Dugan, Daniel J Hicklin, W Robert Bishop, Diane Rindgen, Amin Nomeir, Winifred Prosise, Paul Reichert, Giovanna Scapin, Corey Strickland, Ronald J Doll

Affiliations

  1. Discovery Chemistry, Merck Research Laboratories , Kenilworth, New Jersey 07033, United States.
  2. Discovery Chemistry, Merck Research Laboratories , Boston, Massachusetts 02115, United States.
  3. Discovery Biology, Merck Research Laboratories , Kenilworth, New Jersey 07033, United States.
  4. Pharmacokinetic, Pharmacodynamics and Drug Metabolism, Merck Research Laboratories , Kenilworth, New Jersey 07033, United States.
  5. Structural Chemistry, Merck Research Laboratories , Kenilworth, New Jersey 07033, United States.

PMID: 26985323 PMCID: PMC4789661 DOI: 10.1021/acsmedchemlett.5b00472

Abstract

A new subseries of substituted piperidines as p53-HDM2 inhibitors exemplified by 21 has been developed from the initial lead 1. Research focused on optimization of a crucial HDM2 Trp23-ligand interaction led to the identification of 2-(trifluoromethyl)thiophene as the preferred moiety. Further investigation of the Leu26 pocket resulted in potent, novel substituted piperidine inhibitors of the HDM2-p53 interaction that demonstrated tumor regression in several human cancer xenograft models in mice. The structure of HDM2 in complex with inhibitors 3, 10, and 21 is described.

Keywords: HDM2; cancer; p53; protein−protein interaction

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