UNC4203   Click here for help

GtoPdb Ligand ID: 10131

Synonyms: MERTK inhibitor 19 [PMID: 30347155] | UNC4203A [US20150291606A1]
Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: The structure and activity of UNC4203 is disclosed in Zhao et al. (2018) [4] and we rendered the structure using the SMILES string provided therein. It is one of the chemical structures claimed in patent US20150291606A1 [3], with therapeutic uses of such compounds claimed in WO2015157125A1 [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

UNC4203 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 6
Hydrogen bond donors 2
Rotatable bonds 8
Topological polar surface area 69.45
Molecular weight 504.36
XLogP 5.29
No. Lipinski's rules broken 1

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 CCCC(Nc1ncc2c(n1)n(cc2c1ccc(cc1)CN1CCCN(CC1)C)C1CCC(CC1)O)C
Isomeric SMILES CCC[C@@H](Nc1ncc2c(n1)n(cc2c1ccc(cc1)CN1CCCN(CC1)C)[C@@H]1CC[C@H](CC1)O)C
InChI InChI=1S/C30H44N6O/c1-4-6-22(2)32-30-31-19-27-28(21-36(29(27)33-30)25-11-13-26(37)14-12-25)24-9-7-23(8-10-24)20-35-16-5-15-34(3)17-18-35/h7-10,19,21-22,25-26,37H,4-6,11-18,20H2,1-3H3,(H,31,32,33)/t22-,25-,26-/m0/s1
InChI Key HYUGTGGDEAGXJP-HRNNMHKYSA-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/)
Immunopharmacology Comments
MERTK is one of the members of the TAM family of tyrosine kinases. It plays important roles in the innate immune system including the regulation of self-tolerance and inhibition of autoimmunity. In the tumour microenvironment TAM kinase activity (e.g. from tumour infiltrating macrophages) can undermine any antitumoral immune response and augment cancer progression. Subsequently, MERTK inhibition has been shown to inhibit tumour growth and metastasis in experimental models [1], and the development of MERTK inhibitors with potential as immuno-oncology therapeutics is underway. UNC4203 is a suitably selective pharmacological tool to examine the potential of MERTK inhibition as an immunomodulatory mechanism and to aid futher elucidation of MERTK's role in cancer immunology.