compound 18e [PMID: 31670517]   Click here for help

GtoPdb Ligand ID: 10549

PDB Ligand Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Compound 18e is an optimised, orally bioavailable dual Janus kinase 2 (JAK2)/fms related tyrosine kinase 3 (FLT3) inhibitor [1]. It exhibits anti-tumour activity in vitro and in vivo.
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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 7
Hydrogen bond donors 2
Rotatable bonds 8
Topological polar surface area 82.34
Molecular weight 467.28
XLogP 3.48
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 OCCN(C1CCN(CC1)c1ccc(cc1F)Nc1ncc(c(n1)c1cnn(c1)C(C)C)C)C
Isomeric SMILES OCCN(C1CCN(CC1)c1ccc(cc1F)Nc1ncc(c(n1)c1cnn(c1)C(C)C)C)C
InChI InChI=1S/C25H34FN7O/c1-17(2)33-16-19(15-28-33)24-18(3)14-27-25(30-24)29-20-5-6-23(22(26)13-20)32-9-7-21(8-10-32)31(4)11-12-34/h5-6,13-17,21,34H,7-12H2,1-4H3,(H,27,29,30)
InChI Key CVLXNRIQVFIVGY-UHFFFAOYSA-N
Bioactivity Comments
Compound 18e has 37-fold and 56-fold selectivity for JAK2 over JAK1 and JAK3, respectively in biochemical assay. Selectivity for JAK2 is higher in cellular assays [1]. It inhibits proliferation of Ba/F3-JAK2V617F cells and JAK2V617F-overexpressing SET-2 cells with IC50s of 145 and 270 nM, respectively. It retains inhibitory activity for the FLT3D835Y mutation (IC50 4 nM). In vivo, compound 18e inhibits tumour growth in the MV4-11 and SET-2 xenograft tumour models.
Selectivity at enzymes
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
Janus kinase 2 Hs Inhibitor Inhibition 9.1 pIC50 - 1
⤷ pIC50 9.1 (IC50 7x10-10 M) [1]
Janus kinase 1 Hs Inhibitor Inhibition 7.6 pIC50 - 1
⤷ pIC50 7.6 (IC50 2.6x10-8 M) [1]
Janus kinase 3 Hs Inhibitor Inhibition 7.4 pIC50 - 1
⤷ pIC50 7.4 (IC50 3.9x10-8 M) [1]
Selectivity at catalytic receptors
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
fms related receptor tyrosine kinase 3 Hs Inhibitor Inhibition 8.4 pIC50 - 1
⤷ pIC50 8.4 (IC50 4x10-9 M) [1]