4R5N

8-Tetrahydropyran-2-yl chromans: highly selective beta-site amyloid precursor protein cleaving enzyme 1 (BACE1) inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.1 of the entry. See complete history


Literature

8-Tetrahydropyran-2-yl Chromans: Highly Selective Beta-Site Amyloid Precursor Protein Cleaving Enzyme 1 (BACE1) Inhibitors.

Thomas, A.A.Hunt, K.W.Newhouse, B.Watts, R.J.Liu, X.Vigers, G.Smith, D.Rhodes, S.P.Brown, K.D.Otten, J.N.Burkard, M.Cox, A.A.Geck Do, M.K.Dutcher, D.Rana, S.DeLisle, R.K.Regal, K.Wright, A.D.Groneberg, R.Liao, J.Scearce-Levie, K.Siu, M.Purkey, H.E.Lyssikatos, J.P.

(2014) J Med Chem 57: 10112-10129

  • DOI: 10.1021/jm5015132
  • Primary Citation of Related Structures:  
    4R5N, 4RRN, 4RRO, 4RRS

  • PubMed Abstract: 
  • A series of 2,3,4,4a,10,10a-hexahydropyrano[3,2-b]chromene analogs was developed that demonstrated high selectivity (>2000-fold) for BACE1 vs Cathepsin D (CatD). Three different Asp-binding moieties were examined: spirocyclic acyl guanidines, aminooxazolines, and aminothiazolines in order to modulate potency, selectivity, efflux, and permeability ...

    A series of 2,3,4,4a,10,10a-hexahydropyrano[3,2-b]chromene analogs was developed that demonstrated high selectivity (>2000-fold) for BACE1 vs Cathepsin D (CatD). Three different Asp-binding moieties were examined: spirocyclic acyl guanidines, aminooxazolines, and aminothiazolines in order to modulate potency, selectivity, efflux, and permeability. Guided by structure based design, changes to P2' and P3 moieties were explored. A conformationally restricted P2' methyl group provided inhibitors with excellent cell potency (37-137 nM) and selectivity (435 to >2000-fold) for BACE1 vs CatD. These efforts lead to compound 59, which demonstrated a 69% reduction in rat CSF Aβ1-40 at 60 mg/kg (PO).


    Organizational Affiliation

    Array BioPharma, 3200 Walnut Street, Boulder, Colorado 80301, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-secretase 1A406Homo sapiensMutation(s): 0 
Gene Names: BACE1BACEKIAA1149
EC: 3.4.23.46
UniProt & NIH Common Fund Data Resources
Find proteins for P56817 (Homo sapiens)
Explore P56817 
Go to UniProtKB:  P56817
PHAROS:  P56817
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3J9 (Subject of Investigation/LOI)
Query on 3J9

Download Ideal Coordinates CCD File 
C [auth A](4R,4a'S,10a'R)-8'-(2-fluoropyridin-3-yl)-4a'-methyl-3',4',4a',10a'-tetrahydro-2'H-spiro[1,3-oxazole-4,10'-pyrano[3,2-b]chromen]-2-amine
C20 H20 F N3 O3
DMNHLGOPJBTFQJ-IHPCNDPISA-N
 Ligand Interaction
NI
Query on NI

Download Ideal Coordinates CCD File 
B [auth A]NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
3J9 BindingDB:  4R5N IC50: min: 60, max: 76 (nM) from 2 assay(s)
Binding MOAD:  4R5N IC50: 76 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.230 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.29α = 90
b = 103.91β = 90
c = 100.06γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-03
    Type: Initial release
  • Version 1.1: 2014-12-31
    Changes: Database references