4TPP

2-(3-alkoxy-1-azetidinyl) quinolines as novel PDE10A inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Synthesis and preliminary biological evaluation of potent and selective 2-(3-alkoxy-1-azetidinyl) quinolines as novel PDE10A inhibitors with improved solubility.

Rzasa, R.M.Frohn, M.J.Andrews, K.L.Chmait, S.Chen, N.Clarine, J.G.Davis, C.Eastwood, H.A.Horne, D.B.Hu, E.Jones, A.D.Kaller, M.R.Kunz, R.K.Miller, S.Monenschein, H.Nguyen, T.Pickrell, A.J.Porter, A.Reichelt, A.Zhao, X.Treanor, J.J.Allen, J.R.

(2014) Bioorg.Med.Chem. 22: 6570-6585

  • DOI: 10.1016/j.bmc.2014.10.013
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • We report the discovery of a novel series of 2-(3-alkoxy-1-azetidinyl) quinolines as potent and selective PDE10A inhibitors. Structure-activity studies improved the solubility (pH 7.4) and maintained high PDE10A activity compared to initial lead comp ...

    We report the discovery of a novel series of 2-(3-alkoxy-1-azetidinyl) quinolines as potent and selective PDE10A inhibitors. Structure-activity studies improved the solubility (pH 7.4) and maintained high PDE10A activity compared to initial lead compound 3, with select compounds demonstrating good oral bioavailability. X-ray crystallographic studies revealed two distinct binding modes to the catalytic site of the PDE10A enzyme. An ex vivo receptor occupancy assay in rats demonstrated that this series of compounds covered the target within the striatum.


    Organizational Affiliation

    Department of Medicinal Chemistry, Amgen Inc., One Amgen Center Drive, Thousand Oaks, CA 91320-1799, USA. Electronic address: rrzasa@amgen.com.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
cAMP and cAMP-inhibited cGMP 3',5'-cyclic phosphodiesterase 10A
A, B
351Homo sapiensMutation(s): 0 
Gene Names: PDE10A
EC: 3.1.4.17, 3.1.4.35
Find proteins for Q9Y233 (Homo sapiens)
Go to Gene View: PDE10A
Go to UniProtKB:  Q9Y233
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

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Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
35D
Query on 35D

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Download CCD File 
A, B
1-[4-(3-{[1-(quinolin-2-yl)azetidin-3-yl]oxy}quinoxalin-2-yl)piperidin-1-yl]ethanone
C27 H27 N5 O2
VSJCZYGHEFDAJZ-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
35DIC50: 2.6 - 2.9 nM (100) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.167 
  • Space Group: F 2 3
Unit Cell:
Length (Å)Angle (°)
a = 253.216α = 90.00
b = 253.216β = 90.00
c = 253.216γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
PDB_EXTRACTdata extraction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2014-06-09 
  • Released Date: 2014-12-17 
  • Deposition Author(s): Chmait, S.

Revision History 

  • Version 1.0: 2014-12-17
    Type: Initial release
  • Version 1.1: 2015-10-14
    Type: Data collection
  • Version 1.2: 2017-11-22
    Type: Derived calculations, Refinement description