4B72

Aminoimidazoles as BACE-1 Inhibitors: From De Novo Design to Ab- lowering in Brain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Core Refinement Toward Permeable Beta-Secretase (Bace-1) Inhibitors with Low Herg Activity.

Ginman, T.Viklund, J.Malmstrom, J.Blid, J.Emond, R.Forsblom, R.Johansson, A.Kers, A.Lake, F.Sehgelmeble, F.Sterky, K.J.Bergh, M.Lindgren, A.Johansson, P.Jeppsson, F.Falting, J.Gravenfors, Y.Rahm, F.

(2013) J Med Chem 56: 4181

  • DOI: 10.1021/jm3011349
  • Primary Citation of Related Structures:  
    4B72, 4B77, 4B78, 4B70

  • PubMed Abstract: 
  • By use of iterative design aided by predictive models for target affinity, brain permeability, and hERG activity, novel and diverse compounds based on cyclic amidine and guanidine cores were synthesized with the goal of finding BACE-1 inhibitors as a ...

    By use of iterative design aided by predictive models for target affinity, brain permeability, and hERG activity, novel and diverse compounds based on cyclic amidine and guanidine cores were synthesized with the goal of finding BACE-1 inhibitors as a treatment for Alzheimer's disease. Since synthesis feasibility had low priority in the design of the cores, an extensive synthesis effort was needed to make the relevant compounds. Syntheses of these compounds are reported, together with physicochemical properties and structure-activity relationships based on in vitro data. Four crystal structures of diverse amidines binding in the active site are deposited and discussed. Inhibitors of BACE-1 with 3 μM to 32 nM potencies in cells are shown, together with data on in vivo brain exposure levels for four compounds. The results presented show the importance of the core structure for the profile of the final compounds.


    Organizational Affiliation

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



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
BETA-SECRETASE 1A388Homo sapiensMutation(s): 0 
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
 ( Mouse scroll to zoom / Hold left click to move )
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2FB
Query on 2FB

Download CCD File 
A
(6R)-6-(4-methoxyphenyl)-2-methyl-6-(3-pyrimidin-5-ylphenyl)pyrrolo[3,4-d][1,3]thiazol-4-amine
C23 H19 N5 O S
YQFNSFOVYAQJAF-HSZRJFAPSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
2FBIC50:  630   nM  Binding MOAD
2FBIC50 :  630   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.196 
  • R-Value Observed: 0.198 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.99α = 90
b = 75.15β = 90
c = 104.61γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Revision History 

  • Version 1.0: 2013-06-26
    Type: Initial release
  • Version 1.1: 2013-07-03
    Changes: Database references