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: 1.5801 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.176 

wwPDB Validation 3D Report Full Report


This is version 1.1 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

  • 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 culmi ...

    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-alpha
A
226Homo sapiensMutation(s): 0 
Gene Names: HSP90AA1 (HSP90A, HSPC1, HSPCA)
Find proteins for P07900 (Homo sapiens)
Go to Gene View: HSP90AA1
Go to UniProtKB:  P07900
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
06J
Query on 06J

Download SDF File 
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: 96 nM (99) BINDINGDB
06JIC50: 883 nM BINDINGMOAD
06JIC50: 96 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.5801 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.176 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 67.350α = 90.00
b = 90.355β = 90.00
c = 98.594γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
HKL-2000data reduction
PHASERphasing
PHENIXrefinement
StructureStudiodata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-06-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance