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compound 3 [PMID: 28603634]   Click here for help

GtoPdb Ligand ID: 9628

Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: EP4 antagonists from Eli Lilly are being investigated as analgesic and anti‐inflammatory molecules [2]. This one is example 22 in patent US20160251306 [1], which has 43 analogues but reports only 2 IC50s.
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 3
Rotatable bonds 6
Topological polar surface area 99.52
Molecular weight 390.16
XLogP 3.34
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 OCc1cccc(c1)c1ccc(c(n1)C(=O)Nc1c(C)ccc(c1C)C(=O)O)C
Isomeric SMILES OCc1cccc(c1)c1ccc(c(n1)C(=O)Nc1c(C)ccc(c1C)C(=O)O)C
InChI InChI=1S/C23H22N2O4/c1-13-7-9-18(23(28)29)15(3)20(13)25-22(27)21-14(2)8-10-19(24-21)17-6-4-5-16(11-17)12-26/h4-11,26H,12H2,1-3H3,(H,25,27)(H,28,29)
InChI Key WRBLOVAXQYYLFM-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/)
Immunopharmacology Comments
EP4 antagonists are effective as analgesic and anti‐inflammatory molecules. Traditional NSAIDS and coxibs, while effective, exhibit significant liability because of a variety of side‐effects. EP4 antagonists would be expected to be a safer alternative since they are unlikely to have a direct effect on levels of other prostanoids.