4PZW

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: 0.231 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 

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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: https://doi.org/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, reduced efflux, and reduced CYP2D6 inhibition ...

    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)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-secretase 1406Homo sapiensMutation(s): 0 
Gene Names: BACE1, BACE, KIAA1149
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
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP56817
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2X4
Query on 2X4
Download Ideal Coordinates CCD File 
C [auth A](4R,4a'S,10a'S)-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-LSBZLQRGSA-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
2X4 BindingDB:  4PZW IC50: min: 20, max: 110 (nM) from 2 assay(s)
Binding MOAD:  4PZW IC50: 110 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 75.17α = 90
b = 103.94β = 90
c = 99.73γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • 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