4AZY

Design and Synthesis of BACE1 Inhibitors with In Vivo Brain Reduction of beta-Amyloid Peptides (COMPOUND 10)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.79 Å
  • R-Value Free: 0.210 
  • 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

Design and synthesis of beta-site amyloid precursor protein cleaving enzyme (BACE1) inhibitors with in vivo brain reduction of beta-amyloid peptides.

Swahn, B.M.Kolmodin, K.Karlstrom, S.von Berg, S.Soderman, P.Holenz, J.Berg, S.Lindstrom, J.Sundstrom, M.Turek, D.Kihlstrom, J.Slivo, C.Andersson, L.Pyring, D.Rotticci, D.Ohberg, L.Kers, A.Bogar, K.von Kieseritzky, F.Bergh, M.Olsson, L.L.Janson, J.Eketjall, S.Georgievska, B.Jeppsson, F.Falting, J.

(2012) J Med Chem 55: 9346-9361

  • DOI: 10.1021/jm3009025
  • Primary Citation of Related Structures:  
    4B00, 4AZY

  • PubMed Abstract: 
  • The evaluation of a series of aminoisoindoles as β-site amyloid precursor protein cleaving enzyme 1 (BACE1) inhibitors and the discovery of a clinical candidate drug for Alzheimer's disease, (S)-32 (AZD3839), are described. The improvement in permeab ...

    The evaluation of a series of aminoisoindoles as β-site amyloid precursor protein cleaving enzyme 1 (BACE1) inhibitors and the discovery of a clinical candidate drug for Alzheimer's disease, (S)-32 (AZD3839), are described. The improvement in permeability properties by the introduction of fluorine adjacent to the amidine moiety, resulting in in vivo brain reduction of Aβ40, is discussed. Due to the basic nature of these compounds, they displayed affinity for the human ether-a-go-go related gene (hERG) ion channel. Different ways to reduce hERG inhibition and increase hERG margins for this series are described, culminating in (S)-16 and (R)-41 showing large in vitro margins with BACE1 cell IC(50) values of 8.6 and 0.16 nM, respectively, and hERG IC(50) values of 16 and 2.8 μM, respectively. Several compounds were advanced into pharmacodynamic studies and demonstrated significant reduction of β-amyloid peptides in mouse brain following oral dosing.


    Organizational Affiliation

    Department of Medicinal Chemistry, AstraZeneca R&D Södertälje, SE-151 85, Södertälje, Sweden. brittmarieswahn@gmail.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BETA-SECRETASE 1A411Homo sapiensMutation(s): 2 
Gene Names: BACE1BACEKIAA1149
EC: 3.4.23.46
Find proteins for P56817 (Homo sapiens)
Explore P56817 
Go to UniProtKB:  P56817
NIH Common Fund Data Resources
PHAROS  P56817
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
7F3
Query on 7F3

Download CCD File 
A
(1S)-4-fluoro-1-(4-fluoro-3-pyrimidin-5-ylphenyl)-1-[2-(trifluoromethyl)pyridin-4-yl]-1H-isoindol-3-amine
C24 H14 F5 N5
UDQUVXUVXUGJFO-QHCPKHFHSA-N
 Ligand Interaction
ACT
Query on ACT

Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
NA
Query on NA

Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
7F3IC50:  204   nM  BindingDB
7F3IC50:  29   nM  BindingDB
7F3IC50 :  198   nM  PDBBind
7F3IC50:  125   nM  BindingDB
7F3IC50:  198   nM  BindingDB
7F3IC50:  125   nM  Binding MOAD
7F3IC50:  22   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.79 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.177 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.54α = 90
b = 76.39β = 90
c = 104.34γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
MOSFLMdata reduction
SCALAdata scaling
REFMACphasing

Structure Validation

View Full Validation Report



Entry History 

Revision History 

  • Version 1.0: 2012-10-17
    Type: Initial release
  • Version 1.1: 2012-11-21
    Changes: Database references
  • Version 1.2: 2018-02-14
    Changes: Database references, Structure summary