3R91

Macrocyclic lactams as potent Hsp90 inhibitors with excellent tumor exposure and extended biomarker activity.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.579 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Macrocyclic lactams as potent Hsp90 inhibitors with excellent tumor exposure and extended biomarker activity.

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

(2011) Bioorg.Med.Chem.Lett. 21: 3411-3416

  • DOI: 10.1016/j.bmcl.2011.03.112

  • PubMed Abstract: 
  • A novel series of macrocyclic ortho-aminobenzamide Hsp90 inhibitors is reported. In continuation of our research in this area, macrocyclic amides and lactams were explored to reduce the risk of hERG liabilities. This effort culminated in the discover ...

    A novel series of macrocyclic ortho-aminobenzamide Hsp90 inhibitors is reported. In continuation of our research in this area, macrocyclic amides and lactams were explored to reduce the risk of hERG liabilities. This effort culminated in the discovery of compound 38, which showed a favorable in vitro profile, and efficiently suppressed proliferation of several relevant cell lines. This compound showed prolonged Hsp90-inhibitory activity at least 24 h post-administration, consistent with elevated and prolonged exposure in the tumor.


    Organizational Affiliation

    Medicinal Chemistry, Pfizer, 401 N Middletown Road, Pearl River, NY 10965, United States. chzapf@gmail.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
06H
Query on 06H

Download SDF File 
Download CCD File 
A
(6S)-4,6,15,15,18-pentamethyl-5,17-dioxo-2,3,4,5,6,7,14,15,16,17-decahydro-1H-12,8-(metheno)[1,4,9]triazacyclotetradecino[9,8-a]indole-9-carboxamide
C25 H32 N4 O3
QPCQIBFESZKAHD-HNNXBMFYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
06HIC50: 92 nM BINDINGMOAD
06HIC50: 92 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.579 Å
  • R-Value Free: 0.199 
  • R-Value Work: 0.186 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 67.042α = 90.00
b = 90.250β = 90.00
c = 97.797γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
StructureStudiodata collection
HKL-2000data scaling
PHASERphasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-05-11
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance