resiniferatoxin   Click here for help

GtoPdb Ligand ID: 2491

Abbreviated name: RTX
PDB Ligand
Compound class: Natural product or derivative
Comment: Resiniferatoxin, an extract from resin spurge (Euphorbia resinifera), is a TRPV1 agonist.
There is some ambiguity online and in the literature as to the exact stereochemistry of resiniferatoxin. The representation shown here matches that in the PubChem and ChEMBL links above, while several tautomers and stereoisomers are also listed on PubChem, and ChEBI represents the compound with the entry CHEBI:8809.
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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 7
Hydrogen bond donors 2
Rotatable bonds 9
Topological polar surface area 120.75
Molecular weight 628.27
XLogP 2.85
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 COc1cc(ccc1O)CC(=O)OCC1=CC2C3OC4(OC2(C2C(C1)(O)C(=O)C(=C2)C)C(CC3(O4)C(=C)C)C)Cc1ccccc1
Isomeric SMILES COc1cc(ccc1O)CC(=O)OCC1=C[C@H]2[C@H]3O[C@]4(O[C@]2([C@H]2[C@@](C1)(O)C(=O)C(=C2)C)[C@@H](C[C@@]3(O4)C(=C)C)C)Cc1ccccc1
InChI InChI=1S/C37H40O9/c1-21(2)35-17-23(4)37-27(33(35)44-36(45-35,46-37)19-24-9-7-6-8-10-24)14-26(18-34(41)30(37)13-22(3)32(34)40)20-43-31(39)16-25-11-12-28(38)29(15-25)42-5/h6-15,23,27,30,33,38,41H,1,16-20H2,2-5H3/t23-,27+,30-,33-,34-,35-,36-,37-/m1/s1
InChI Key DSDNAKHZNJAGHN-MXTYGGKSSA-N
No information available.
Summary of Clinical Use Click here for help
Clinical trials NCT00804154 (Phase 1) and NCT02522611 (Phase 1/2) which have both suspended participant recruitment, were designed to evaluate intrathecal/preganglionic administration of resiniferatoxin as therapy for severe (intractable) pain in patients with advanced cancer.
Mechanism Of Action and Pharmacodynamic Effects Click here for help
The rationale for using resiniferatoxin as pain control is reviewed in [4].
Clinical Trials
Clinical Trial ID Title Type Source Comment References
NCT00804154 Resiniferatoxin to Treat Severe Pain Associated With Advanced Cancer Phase 1 Interventional National Institutes of Health Clinical Center (CC)
NCT02522611 Periganglionic Resiniferatoxin for the Treatment of Intractable Pain Due to Cancer-induced Bone Pain Phase 1/Phase 2 Interventional National Institutes of Health Clinical Center (CC)