4PZX

Synthesis, Characterization and PK/PD Studies of a Series of Spirocyclic Pyranochromene BACE1 Inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Synthesis, characterization, and PK/PD studies of a series of spirocyclic pyranochromene BACE1 inhibitors.

Volgraf, M.Chan, L.Huestis, M.P.Purkey, H.E.Burkard, M.Geck Do, M.Harris, J.Hunt, K.W.Liu, X.Lyssikatos, J.P.Rana, S.Thomas, A.A.Vigers, G.P.Siu, M.

(2014) Bioorg Med Chem Lett 24: 2477-2480

  • DOI: 10.1016/j.bmcl.2014.04.012
  • Primary Citation of Related Structures:  
    4PZW, 4PZX

  • PubMed Abstract: 
  • The development of 1,3,4,4a,5,10a-hexahydropyrano[3,4-b]chromene analogs as BACE1 inhibitors is described. Introduction of the spirocyclic pyranochromene scaffold yielded several advantages over previous generation cores, including increased potency, ...

    The development of 1,3,4,4a,5,10a-hexahydropyrano[3,4-b]chromene analogs as BACE1 inhibitors is described. Introduction of the spirocyclic pyranochromene scaffold yielded several advantages over previous generation cores, including increased potency, reduced efflux, and reduced CYP2D6 inhibition. Compound 13 (BACE1 IC50=110 nM) demonstrated a reduction in CSF Aβ in wild type rats after a single dose.


    Organizational Affiliation

    Genentech Inc., 1 DNA Way, South San Francisco, CA 94080, 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
Find proteins for P56817 (Homo sapiens)
Explore P56817 
Go to UniProtKB:  P56817
NIH Common Fund Data Resources
PHAROS  P56817
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2X5
Query on 2X5

Download CCD File 
A
(4R,4a'R,10a'R)-7'-(5-chloropyridin-3-yl)-3',4',4a',10a'-tetrahydro-1'H-spiro[1,3-oxazole-4,5'-pyrano[3,4-b]chromen]-2-amine
C19 H18 Cl N3 O3
BGRWOLNAPSRJIS-UCLAIMLFSA-N
 Ligand Interaction
NI
Query on NI

Download CCD File 
A
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
2X5IC50:  130   nM  Binding MOAD
2X5IC50:  130   nM  BindingDB
2X5IC50:  1000   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.2α = 90
b = 103.55β = 90
c = 99.51γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2014-03-31 
  • Released Date: 2014-05-14 
  • Deposition Author(s): Vigers, G.P.A.

Revision History 

  • Version 1.0: 2014-05-14
    Type: Initial release
  • Version 1.1: 2014-06-18
    Changes: Database references
  • Version 1.2: 2014-10-15
    Changes: Structure summary