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VPC171   Click here for help

GtoPdb Ligand ID: 8895

Compound class: Synthetic organic
Comment: VPC171 is a positive allosteric modulator (PAM) of the adenosine A1 receptor (A1R). It is compound 9a in Aurelio et al. (2009) [1]. PAMs of the A1R are being investigated as a novel treatment approach for neuropathic pain [2].
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 2
Hydrogen bond donors 1
Rotatable bonds 4
Topological polar surface area 71.33
Molecular weight 347.06
XLogP 5.32
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 Nc1scc(c1C(=O)c1ccccc1)c1cccc(c1)C(F)(F)F
Isomeric SMILES Nc1scc(c1C(=O)c1ccccc1)c1cccc(c1)C(F)(F)F
InChI InChI=1S/C18H12F3NOS/c19-18(20,21)13-8-4-7-12(9-13)14-10-24-17(22)15(14)16(23)11-5-2-1-3-6-11/h1-10H,22H2
InChI Key HNHLVOBHWXLIGP-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/)
Bioactivity Comments
In vitro, VPC171 enhances A1R agonist ((R)-PIA)-induced ERK1/2 activation with a 2.4-fold positive cooperativity, and enhances [35S]GTPγS binding with a 6.9-fold positive cooperativity under the same conditions [2].
Selectivity at GPCRs
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
A1 receptor Primary target of this compound Hs Allosteric modulator Positive - - - 1-2
⤷ [1-2]