omipalisib   Click here for help

GtoPdb Ligand ID: 8974

Synonyms: GSK 2126458 | GSK-2126458 | GSK2126458
PDB Ligand Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Omipalisib (GSK2126458) is a potent dual inhibitor of phosphoinositide 3-kinase α (PI3Kα) and the mammalian target of rapamycin (mTOR). It is compound 1 in [1]. It was originally developed for anti-proliferative activity in cancer, but has been repositioned as a potential idiopathic pulmonary fibrosis (IPF) therapy [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

omipalisib is commercially available from our sponsors

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 7
Hydrogen bond donors 1
Rotatable bonds 6
Topological polar surface area 115.34
Molecular weight 505.1
XLogP 4.33
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 COc1ncc(cc1NS(=O)(=O)c1ccc(cc1F)F)c1ccc2c(c1)c(ccn2)c1ccnnc1
Isomeric SMILES COc1ncc(cc1NS(=O)(=O)c1ccc(cc1F)F)c1ccc2c(c1)c(ccn2)c1ccnnc1
InChI InChI=1S/C25H17F2N5O3S/c1-35-25-23(32-36(33,34)24-5-3-18(26)12-21(24)27)11-17(13-29-25)15-2-4-22-20(10-15)19(7-8-28-22)16-6-9-30-31-14-16/h2-14,32H,1H3
InChI Key CGBJSGAELGCMKE-UHFFFAOYSA-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
A Phase 1 proof of mechanism study in patients with idiopathic pulmonary fibrosis (IPF) has been completed (see NCT01725139). In vivo antiproliferative activity in tumour models did not translate to clinical benefit, with a clinical trial in cancer patients terminated.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT01725139 A Proof of Mechanism Study With GSK2126458 in Patients With Idiopathic Pulmonary Fibrosis (IPF) Phase 1 Interventional GlaxoSmithKline