3VAP

Synthesis and SAR Studies of imidazo-[1,2-a]-pyrazine Aurora kinase inhibitors with improved off target kinase selectivity


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.66 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Synthesis and SAR studies of imidazo-[1,2-a]-pyrazine Aurora kinase inhibitors with improved off-target kinase selectivity.

Voss, M.E.Rainka, M.P.Fleming, M.Peterson, L.H.Belanger, D.B.Siddiqui, M.A.Hruza, A.Voigt, J.Gray, K.Basso, A.D.

(2012) Bioorg.Med.Chem.Lett. 22: 3544-3549

  • DOI: 10.1016/j.bmcl.2012.03.051

  • PubMed Abstract: 
  • The structure-activity relationships of new Aurora A/B kinase inhibitors derived from the previously identified kinase inhibitor 12 are described. Introduction of acetic acid amides onto the pyrazole of compound 12 was postulated to influence Aurora ...

    The structure-activity relationships of new Aurora A/B kinase inhibitors derived from the previously identified kinase inhibitor 12 are described. Introduction of acetic acid amides onto the pyrazole of compound 12 was postulated to influence Aurora A/B selectivity and improve the profile against off-target kinases. The SAR of the acetic acid amides was explored and the effect of substitution on enzyme inhibition as well as mechanism-based cell activity was studied. Additionally, several of the more potent inhibitors were screened for their off-target kinase selectivity.


    Organizational Affiliation

    AMRI Global, 26 Corporate Circle, Albany, NY 12212, USA. matthew.voss@amriglobal.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Aurora kinase A
A
272Homo sapiensMutation(s): 0 
Gene Names: AURKA (AIK, AIRK1, ARK1, AURA, AYK1, BTAK, IAK1, STK15, STK6)
EC: 2.7.11.1
Find proteins for O14965 (Homo sapiens)
Go to Gene View: AURKA
Go to UniProtKB:  O14965
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
0FY
Query on 0FY

Download SDF File 
Download CCD File 
A
3-(1-{2-[(3-fluoropyridinium-4-yl)amino]-2-oxoethyl}-1H-pyrazol-4-yl)-6-methyl-8-[(3-{[(1R,3R)-3-methylpiperidinium-1-yl]methyl}-1,2-thiazol-5-yl)amino]imidazo[1,2-a]pyrazin-1-ium
C27 H32 F N10 O S
PBHYAPKEUOBQSL-QGZVFWFLSA-Q
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
0FYIC50: 4 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.66 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.202 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 83.329α = 90.00
b = 83.329β = 90.00
c = 157.700γ = 120.00
Software Package:
Software NamePurpose
AutoPROCdata scaling
StructureStudiodata collection
SCALAdata scaling
XDSdata reduction
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-05-02
    Type: Initial release
  • Version 1.1: 2012-05-23
    Type: Database references