compound 5e [PMID: 28580438]   Click here for help

GtoPdb Ligand ID: 9712

Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Compound 5e is a potent FMS-like tyrosine kinase 3 (FLT3, a type III receptor tyrosine kinase) inhibitor that is in preclinical evaluation for the treatment of acute myelogenous leukemia (AML) [3].
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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 5
Hydrogen bond donors 2
Rotatable bonds 5
Topological polar surface area 62.73
Molecular weight 305.16
XLogP 3.61
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 CC(Nc1ccnc(n1)Nc1cccc(c1)c1cccnc1)C
Isomeric SMILES CC(Nc1ccnc(n1)Nc1cccc(c1)c1cccnc1)C
InChI InChI=1S/C18H19N5/c1-13(2)21-17-8-10-20-18(23-17)22-16-7-3-5-14(11-16)15-6-4-9-19-12-15/h3-13H,1-2H3,(H2,20,21,22,23)
InChI Key JTFUPGNZUPRHCZ-UHFFFAOYSA-N
Bioactivity Comments
Compound 5e potently kills MV4-11 and MOLM13 FLT3-driven AML cells [3]. The EC50 for MV4-11 killing is 25nM. 5e is active against wild-type and mutant forms of FLT3, with a Kd of 1.4nM for the common ITD mutation. 5e exhibits some off-target activity: it is ~10-fold selective for FLT3 over PDGFRB and JAK1, and inhibits several other kinases with Kd values <500nM (CLK1, CSF1R, EPHB6, JAK2, PIK4CB, TYK2) [3].
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 1 Hs Inhibitor Inhibition 7.6 pKd - 3
⤷ pKd 7.6 (Kd 2.8x10-8 M) [3]
Description: Measured using the JAK1 JH2 domain-pseudokinase.
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 Primary target of this compound Hs Inhibitor Inhibition 8.4 pKd - 3
⤷ pKd 8.4 (Kd 3.6x10-9 M) [3]
Description: Measured using the Z′-LYTE Kinase Assay Kit and wild type FLT3.
platelet derived growth factor receptor beta Hs Inhibitor Inhibition 7.6 pKd - 3
⤷ pKd 7.6 (Kd 2.8x10-8 M) [3]