CH4987655   Click here for help

GtoPdb Ligand ID: 9910

Synonyms: compound 24 [PMID: 21316218] | RO4987655
PDB Ligand
Compound class: Synthetic organic
Comment: CH4987655 is an orally active allosteric MEK inhibitor that was designed as a novel cancer chemotherapeutic [2].
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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 CDK toolkit. 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 4
Hydrogen bond donors 3
Rotatable bonds 9
Topological polar surface area 100.13
Molecular weight 565.03
XLogP 3.49
No. Lipinski's rules broken 0
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.

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Canonical SMILES OCCONC(=O)c1cc(CN2OCCCC2=O)c(c(c1Nc1ccc(cc1F)I)F)F
Isomeric SMILES OCCONC(=O)c1cc(CN2OCCCC2=O)c(c(c1Nc1ccc(cc1F)I)F)F
InChI InChI=1S/C20H19F3IN3O5/c21-14-9-12(24)3-4-15(14)25-19-13(20(30)26-31-7-5-28)8-11(17(22)18(19)23)10-27-16(29)2-1-6-32-27/h3-4,8-9,25,28H,1-2,5-7,10H2,(H,26,30)
InChI Key FIMYFEGKMOCQKT-UHFFFAOYSA-N
No information available.
Summary of Clinical Use Click here for help
A single Phase 1 dose-escalating study to evaluate CH4987655 (RO4987655 in the trial) efficacy in patients with advanced solid tumours has been completed (NCT00817518) [3-5], and results showed promising preliminary antitumor activity. An expansion of the study in patients with advanced cancer with RAS-RAF mutations failed to show efficacy superior to other MEK inhibitors [5]. A lack of further activity suggests that development of this candidate has been discontinued.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
The mitogen-activated protein kinase (MAPK) pathway (the Ras/Raf/MEK/ERK signaling cascade) is one of the most important pathways involved in cell proliferation and differentiation, and abberant pathway activation driven by K-Ras or B-Raf mutations in tumours is common. Hence, drug companies have long been developing inhibitors of components of the MAPK pathway as cancer chemotherapeutics [1].
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT00817518 A Dose-Escalating Study of RO4987655 in Patients With Advanced Solid Tumors Phase 1 Interventional Hoffmann-La Roche