HDM2 in complex with a 3,3-Disubstituted Piperidine

Experimental Data Snapshot

  • Resolution: 1.79 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 

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This is version 1.2 of the entry. See complete history


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

Bogen, S.L.Pan, W.Gibeau, C.R.Lahue, B.R.Ma, Y.Nair, L.G.Seigel, E.Shipps, G.W.Tian, Y.Wang, Y.Lin, Y.Liu, M.Liu, S.Mirza, A.Wang, X.Lipari, P.Seidel-Dugan, C.Hicklin, D.J.Bishop, W.R.Rindgen, D.Nomeir, A.Prosise, W.Reichert, P.Scapin, G.Strickland, C.Doll, R.J.

(2016) ACS Med Chem Lett 7: 324-329

  • DOI: https://doi.org/10.1021/acsmedchemlett.5b00472
  • Primary Citation of Related Structures:  
    5HMH, 5HMI, 5HMK

  • PubMed 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.

  • Organizational Affiliation

    Discovery Chemistry, Merck Research Laboratories , Kenilworth, New Jersey 07033, United States.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
E3 ubiquitin-protein ligase Mdm2
A, B
101Homo sapiensMutation(s): 2 
Gene Names: MDM2
EC: 6.3.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q00987 (Homo sapiens)
Explore Q00987 
Go to UniProtKB:  Q00987
GTEx:  ENSG00000135679 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ00987
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on 62R

Download Ideal Coordinates CCD File 
C [auth A],
E [auth B]
4-[2-(4-{[(2R,3S)-2-propyl-1-{[4-(trifluoromethyl)pyridin-3-yl]carbonyl}-3-{[5-(trifluoromethyl)thiophen-3-yl]oxy}piperidin-3-yl]carbonyl}piperazin-1-yl)phenoxy]butanoic acid
C35 H38 F6 N4 O6 S
Query on SO4

Download Ideal Coordinates CCD File 
O4 S
Experimental Data & Validation

Experimental Data

  • Resolution: 1.79 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.211 
  • R-Value Observed: 0.213 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 39.64α = 90
b = 39.127β = 90
c = 132.337γ = 90
Software Package:
Software NamePurpose
d*TREKdata scaling
PDB_EXTRACTdata extraction
XDSdata reduction
Aimlessdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

  • Released Date: 2016-04-06 
  • Deposition Author(s): Scapin, G.

Revision History  (Full details and data files)

  • Version 1.0: 2016-04-06
    Type: Initial release
  • Version 1.1: 2017-11-22
    Changes: Derived calculations, Refinement description
  • Version 1.2: 2024-03-06
    Changes: Data collection, Database references