tropisetron   Click here for help

GtoPdb Ligand ID: 260

Synonyms: ICF 205-930 | ICS 205930 | Navoban® | tropisteron
Approved drug PDB Ligand
tropisetron is an approved drug
Compound class: Synthetic organic
Comment: There is some ambiguity in the literature as to the exact stereochemistry of tropisetron. The structure shown here matches the INN-assigned structure and is the same as the the ChEBI and ChEMBL entries linked to above. There is no exact match in PubChem for the structure shown here.
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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 3
Hydrogen bond donors 1
Rotatable bonds 3
Topological polar surface area 45.33
Molecular weight 284.15
XLogP 3.43
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 CN1C2CCC1CC(C2)OC(=O)c1c[nH]c2c1cccc2
Isomeric SMILES CN1[C@@H]2CC[C@H]1C[C@H](C2)OC(=O)c1c[nH]c2c1cccc2
InChI InChI=1S/C17H20N2O2/c1-19-11-6-7-12(19)9-13(8-11)21-17(20)15-10-18-16-5-3-2-4-14(15)16/h2-5,10-13,18H,6-9H2,1H3/t11-,12+,13+
InChI Key ZNRGQMMCGHDTEI-ITGUQSILSA-N
Selectivity at GPCRs
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
5-HT4 receptor Mm Antagonist Antagonist 7.1 pKi - 3
⤷ pKi 7.1 [3]
5-HT4 receptor Rn Antagonist Antagonist 6.8 pKi - 1
⤷ pKi 6.8 [1]
5-HT4 receptor Hs Antagonist Antagonist 6.3 – 7.1 pKi - 2,8
⤷ pKi 6.3 – 7.1 [2,8]
Selectivity at ion channels
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
Glycine Receptor (All subtypes) N/A Subunit-specific Potentiation - - < 1x10-8 7
⤷ Conc range: < 1x10-8 M α1β, α2β , α1, no effect on α2 [7]
5-HT3A Primary target of this compound Hs Antagonist Antagonist 8.5 – 8.8 pKi - 4,6
⤷ pKi 8.5 – 8.8 (Ki 3x10-9 – 1.5x10-9 M) [4,6]
glycine receptor β subunit Hs Antagonist Antagonist 5.3 pKi -
⤷ pKi 5.3 (Ki 5.4x10-6 M) when co-expressed with the α2 subunit
glycine receptor α2 subunit Hs Antagonist Antagonist 4.9 pKi -
⤷ pKi 4.9 (Ki 1.3x10-5 M)
glycine receptor α1 subunit Hs Antagonist Antagonist 4.1 pKi -
⤷ pKi 4.1 (Ki 8.4x10-5 M)
Glycine Receptor (All subtypes) Hs Antagonist Antagonist 4.1 pIC50 - 5,9
⤷ pIC50 4.1 [5,9]
Additional information and targets (data relate to human unless otherwise stated)
Description Data Reference
Commonly used antagonists at nicotinic acetylcholine receptor α9 subunit (α9)5: α-bungarotoxin > methyllycaconitine > strychnine ~ tropisetron > tubocurarine; α9α10: α-bungarotoxin > tropisetron = strychnine > tubocurarine
Commonly used antagonists at nicotinic acetylcholine receptor α10 subunit α9α10: α-bungarotoxin > tropisetron = strychnine > tubocurarine
Ligand mentioned in the following text fields
Glycine receptors comments