5HOR image
Entry Detail
PDB ID:
5HOR
Keywords:
Title:
Crystal structure of c-Met-M1250T in complex with SAR125844.
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2016-01-19
Release Date:
2016-11-23
Method Details:
Experimental Method:
Resolution:
2.20 Å
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Hepatocyte growth factor receptor
Mutations:M1250T,Y1194F,Y1234F,Y1235D
Chain IDs:A
Chain Length:312
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
Primary Citation
Discovery and Pharmacokinetic and Pharmacological Properties of the Potent and Selective MET Kinase Inhibitor 1-{6-[6-(4-Fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-ylsulfanyl]benzothiazol-2-yl}-3-(2-morpholin-4-ylethyl)urea (SAR125844).
J.Med.Chem. 59 7066 7074 (2016)
PMID: 27355974 DOI: 10.1021/acs.jmedchem.6b00280

Abstact

The HGF/MET pathway is frequently activated in a variety of cancer types. Several selective small molecule inhibitors of the MET kinase are currently in clinical evaluation, in particular for NSCLC, liver, and gastric cancer patients. We report herein the discovery of a series of triazolopyridazines that are selective inhibitors of wild-type (WT) MET kinase and several clinically relevant mutants. We provide insight into their mode of binding and report unprecedented crystal structures of the Y1230H variant. A multiparametric chemical optimization approach allowed the identification of compound 12 (SAR125844) as a development candidate. In this chemical series, absence of CYP3A4 inhibition was obtained at the expense of satisfactory oral absorption. Compound 12, a promising parenteral agent for the treatment of MET-dependent cancers, promoted sustained target engagement at tolerated doses in a human xenograft tumor model. Preclinical pharmacokinetics conducted in several species were predictive for the observed pharmacokinetic behavior of 12 in cancer patients.

Legend

Protein

Chemical

Disease

Primary Citation of related structures