4R1Y

Identification and optimization of pyridazinones as potent and selective c-Met kinase inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.182 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Identification and optimization of pyridazinones as potent and selective c-Met kinase inhibitors.

Dorsch, D.Schadt, O.Stieber, F.Meyring, M.Gradler, U.Bladt, F.Friese-Hamim, M.Knuhl, C.Pehl, U.Blaukat, A.

(2015) Bioorg Med Chem Lett 25: 1597-1602

  • DOI: 10.1016/j.bmcl.2015.02.002
  • Primary Citation of Related Structures:  
    4R1V, 4R1Y

  • PubMed Abstract: 
  • In a high-throughput screening campaign for c-Met kinase inhibitors, a thiadiazinone derivative with a carbamate group was identified as a potent in vitro inhibitor. Subsequent optimization guided by c-Met-inhibitor X-ray structures furnished new com ...

    In a high-throughput screening campaign for c-Met kinase inhibitors, a thiadiazinone derivative with a carbamate group was identified as a potent in vitro inhibitor. Subsequent optimization guided by c-Met-inhibitor X-ray structures furnished new compound classes with excellent in vitro and in vivo profiles. The thiadiazinone ring of the HTS hit was first replaced by a pyridazinone followed by an exchange of the carbamate hinge binder with a 1,5-disubstituted pyrimidine. Finally an optimized compound, 22 (MSC2156119), with excellent in vitro potency, high kinase selectivity, long half-life after oral administration and in vivo anti-tumor efficacy at low doses, was selected as a candidate for clinical development.


    Organizational Affiliation

    Merck Serono Research & Development, Merck KGaA, Frankfurter Strasse 250, 64293 Darmstadt, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Hepatocyte growth factor receptorA292Homo sapiensMutation(s): 0 
Gene Names: MET
EC: 2.7.10.1
Find proteins for P08581 (Homo sapiens)
Explore P08581 
Go to UniProtKB:  P08581
NIH Common Fund Data Resources
PHAROS  P08581
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3EH
Query on 3EH

Download CCD File 
A
3-(diethylamino)propyl (3-{[5-(3,4-dimethoxyphenyl)-2-oxo-2H-1,3,4-thiadiazin-3(6H)-yl]methyl}phenyl)carbamate
C26 H34 N4 O5 S
WVYHFPSGWCCXMO-UHFFFAOYSA-N
 Ligand Interaction
7PE
Query on 7PE

Download CCD File 
A
2-(2-(2-(2-(2-(2-ETHOXYETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHOXY)ETHANOL
C14 H30 O7
UKXKPKBTMYNOFS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
3EHIC50:  1100   nM  BindingDB
3EHIC50:  1   nM  Binding MOAD
3EHIC50:  400   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.182 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 38.157α = 90
b = 42.882β = 90
c = 169.502γ = 90
Software Package:
Software NamePurpose
MAR345dtbdata collection
PHASESphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-03-18
    Type: Initial release
  • Version 1.1: 2015-04-22
    Changes: Database references