3R92

Discovery of a macrocyclic o-aminobenzamide Hsp90 inhibitor with heterocyclic tether that shows extended biomarker activity and in vivo efficacy in a mouse xenograft model.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.58 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.177 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Discovery of a macrocyclic o-aminobenzamide Hsp90 inhibitor with heterocyclic tether that shows extended biomarker activity and in vivo efficacy in a mouse xenograft model.

Zapf, C.W.Bloom, J.D.McBean, J.L.Dushin, R.G.Golas, J.M.Liu, H.Lucas, J.Boschelli, F.Vogan, E.Levin, J.I.

(2011) Bioorg Med Chem Lett 21: 3627-3631

  • DOI: 10.1016/j.bmcl.2011.04.102
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • A novel series of macrocyclic ortho-aminobenzamide Hsp90 inhibitors is reported. In continuation of our research, heterocycle-containing tethers were explored with the intent to further improve potency and minimize hERG liabilities. This effort culminated in the discovery of compound 10, which efficiently suppressed proliferation of HCT116 and U87 cells ...

    A novel series of macrocyclic ortho-aminobenzamide Hsp90 inhibitors is reported. In continuation of our research, heterocycle-containing tethers were explored with the intent to further improve potency and minimize hERG liabilities. This effort culminated in the discovery of compound 10, which efficiently suppressed proliferation of HCT116 and U87 cells. This compound showed prolonged Hsp90-inhibitory activity at least 24h post-administration consistent with elevated and prolonged exposure in the tumor. When studied in a xenograft model, the compound demonstrated significant suppression of tumor growth.


    Organizational Affiliation

    Medicinal Chemistry, Pfizer, Pearl River, NY 10965, United States. christoph.zapf@pfizer.com



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock protein HSP 90-alphaA226Homo sapiensMutation(s): 0 
Gene Names: HSP90AHSP90AA1HSPC1HSPCA
Find proteins for P07900 (Homo sapiens)
Explore P07900 
Go to UniProtKB:  P07900
NIH Common Fund Data Resources
PHAROS  P07900
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
06J
Query on 06J

Download CCD File 
A
(3aR)-13,13,16-trimethyl-15-oxo-1,2,3,3a,4,5,12,14,15,17,18,19-dodecahydro-13H-10,6-(metheno)pyrrolo[2',1':3,4][1,4,9]triazacyclotetradecino[9,8-a]indole-7-carboxamide
C26 H34 N4 O2
WQTXERXALASGRT-GOSISDBHSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
06JIC50:  883   nM  Binding MOAD
06JIC50 :  96   nM  PDBBind
06JIC50:  96   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.58 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.177 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 67.35α = 90
b = 90.355β = 90
c = 98.594γ = 90
Software Package:
Software NamePurpose
StructureStudiodata collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-06-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2020-04-15
    Changes: Data collection, Database references