852A   Click here for help

GtoPdb Ligand ID: 9025

Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: 852A is a soluble agonist of Toll-like receptor 7 (TLR7) [5]. It has been clinically investigated for potential anti-cancer activity [1-4,6].
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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 6
Hydrogen bond donors 2
Rotatable bonds 7
Topological polar surface area 111.28
Molecular weight 361.16
XLogP 2.05
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 CCc1nc2c(n1CCCCNS(=O)(=O)C)c1ccccc1nc2N
Isomeric SMILES CCc1nc2c(n1CCCCNS(=O)(=O)C)c1ccccc1nc2N
InChI InChI=1S/C17H23N5O2S/c1-3-14-21-15-16(12-8-4-5-9-13(12)20-17(15)18)22(14)11-7-6-10-19-25(2,23)24/h4-5,8-9,19H,3,6-7,10-11H2,1-2H3,(H2,18,20)
InChI Key YZOQZEXYFLXNKA-UHFFFAOYSA-N
No information available.
Summary of Clinical Use Click here for help
852A has completed Phase 2 clinical trials in patients with metastatic melanoma (NCT00189332) and breast, ovarian, endometrial and cervical cancers (NCT00319748). An additional Phase 2 trial in hematologic malignancies (NCT00276159) was terminated [6]. Click here to link to ClinicalTrials.gov's full list of 852A trials.
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT00189332 Use of 852A in Metastatic Cutaneous Melanoma. Phase 2 Interventional Pfizer
NCT00276159 Study of Immune Response Modifier in the Treatment of Hematologic Malignancies Phase 2 Interventional Masonic Cancer Center, University of Minnesota
NCT00319748 Study of Immune Response Modifier in the Treatment of Breast, Ovarian, Endometrial and Cervical Cancers Phase 2 Interventional Masonic Cancer Center, University of Minnesota