3EMG

Discovery and SAR of novel 4-thiazolyl-2-phenylaminopyrimidines as potent inhibitors of spleen tyrosine kinase (SYK)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Discovery and SAR of novel 4-thiazolyl-2-phenylaminopyrimidines as potent inhibitors of spleen tyrosine kinase (SYK).

Farmer, L.J.Bemis, G.Britt, S.D.Cochran, J.Connors, M.Harrington, E.M.Hoock, T.Markland, W.Nanthakumar, S.Taslimi, P.Ter Haar, E.Wang, J.Zhaveri, D.Salituro, F.G.

(2008) Bioorg.Med.Chem.Lett. 18: 6231-6235

  • DOI: 10.1016/j.bmcl.2008.09.106

  • PubMed Abstract: 
  • A series of SYK inhibitors based on the phenylamino pyrimidine thiazole lead 4 were prepared and evaluated for biological activity. Lead optimization provided compounds with nanomolar K(i)'s against SYK and potent inhibition in mast cell degranulatio ...

    A series of SYK inhibitors based on the phenylamino pyrimidine thiazole lead 4 were prepared and evaluated for biological activity. Lead optimization provided compounds with nanomolar K(i)'s against SYK and potent inhibition in mast cell degranulation assays.


    Organizational Affiliation

    Department of Medicinal Chemistry, Vertex Pharmaceuticals, Inc., 130 Waverly Street, Cambridge, MA 02139, USA. luc_farmer@vrtx.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein kinase SYK
A
291Homo sapiensMutation(s): 0 
Gene Names: SYK
EC: 2.7.10.2
Find proteins for P43405 (Homo sapiens)
Go to Gene View: SYK
Go to UniProtKB:  P43405
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
685
Query on 685

Download SDF File 
Download CCD File 
A
2-{2-[(3,5-dimethylphenyl)amino]pyrimidin-4-yl}-N-[(1S)-2-hydroxy-1-methylethyl]-4-methyl-1,3-thiazole-5-carboxamide
2-{2-[(3,5-dimethylphenyl)amino]pyrimidin-4-yl}-N-[(2S)-1-hydroxypropan-2-yl]-4-methyl-1,3-thiazole-5-carboxamide
C20 H23 N5 O2 S
PEGXADGTBNRSGV-ZDUSSCGKSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
685IC50: 70 nM (99) BINDINGDB
685Ki: 9 nM (99) BINDINGDB
685Ki: 9 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.222 
  • R-Value Work: 0.200 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 39.870α = 90.00
b = 84.450β = 99.63
c = 41.440γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
SCALAdata processing
PDB_EXTRACTdata extraction
SCALAdata scaling
MOSFLMdata reduction
ADSCdata collection
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2008-09-24 
  • Released Date: 2008-12-02 
  • Deposition Author(s): Ter Haar, E.

Revision History 

  • Version 1.0: 2008-12-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance