refametinib   Click here for help

GtoPdb Ligand ID: 7942

Synonyms: BAY-869766 | RDEA119
PDB Ligand
Compound class: Synthetic organic
Comment: Refametinib (BAY-869766) is a potent and selective, allosteric inhibitor of MEK1/2 with potential antineoplastic activity [1]. This compound is available via AstraZeneca's openinnovation toolbox resource, which indicates that refametinib is associated with a risk of fetal toxicity.
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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View interactive charts of activity data across species
2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/). All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 6
Hydrogen bond donors 4
Rotatable bonds 9
Topological polar surface area 116.27
Molecular weight 572.01
XLogP 3.2
No. Lipinski's rules broken 0

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)

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Canonical SMILES OCC(CC1(CC1)S(=O)(=O)Nc1c(OC)cc(c(c1Nc1ccc(cc1F)I)F)F)O
Isomeric SMILES OC[C@H](CC1(CC1)S(=O)(=O)Nc1c(OC)cc(c(c1Nc1ccc(cc1F)I)F)F)O
InChI InChI=1S/C19H20F3IN2O5S/c1-30-15-7-13(21)16(22)18(24-14-3-2-10(23)6-12(14)20)17(15)25-31(28,29)19(4-5-19)8-11(27)9-26/h2-3,6-7,11,24-27H,4-5,8-9H2,1H3/t11-/m0/s1
InChI Key RDSACQWTXKSHJT-NSHDSACASA-N

Generated using the Chemistry Development Kit (CDK) (Willighagen EL et al. Journal of Cheminformatics vol. 9:33. 2017, doi:10.1186/s13321-017-0220-4; https://cdk.github.io/)
No information available.
Summary of Clinical Use Click here for help
Phase 1 clinical trial results have been published [2]. Phase 2 clinical trials are underway for advanced or metastatic cancer, including RAS mutant hepatocellular carcinoma (HCC), assessing refametinib alone or in combination with either sorafenib or regorafenib, which are both approved multikinase inhibitors. View these refametinib clinical trial records at ClinicalTrials.gov.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
The MEK enzyme is highly selective for its target ERK. Inhibition of MEK therefore selectively inhibits activation of the ERK signalling pathway which drives cell proliferation.