zafirlukast   Click here for help

GtoPdb Ligand ID: 3322

Synonyms: Accolate® | ICI-204219
Approved drug PDB Ligand Immunopharmacology Ligand
zafirlukast is an approved drug (FDA (1996))
Compound class: Synthetic organic
Comment: Zafirlukast is an oral leukotriene receptor antagonist (LTRA), with selectivity for cysteinyl leukotriene receptor 1 (CysLT1 receptor).
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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

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View more information in the IUPHAR Pharmacology Education Project: zafirlukast

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 11
Topological polar surface area 124.11
Molecular weight 575.21
XLogP 5.47
No. Lipinski's rules broken 1
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(ccc1Cc1cn(c2c1cc(cc2)NC(=O)OC1CCCC1)C)C(=O)NS(=O)(=O)c1ccccc1C
Isomeric SMILES COc1cc(ccc1Cc1cn(c2c1cc(cc2)NC(=O)OC1CCCC1)C)C(=O)NS(=O)(=O)c1ccccc1C
InChI InChI=1S/C31H33N3O6S/c1-20-8-4-7-11-29(20)41(37,38)33-30(35)22-13-12-21(28(17-22)39-3)16-23-19-34(2)27-15-14-24(18-26(23)27)32-31(36)40-25-9-5-6-10-25/h4,7-8,11-15,17-19,25H,5-6,9-10,16H2,1-3H3,(H,32,36)(H,33,35)
InChI Key YEEZWCHGZNKEEK-UHFFFAOYSA-N
Bioactivity Comments
Zafirlukast shows low potency off-target effects on PPARγ and soluble epoxide hydrolase (sEH) [7].
Selectivity at GPCRs
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
CysLT2 receptor Hs Antagonist Antagonist 6.9 pA2 - 2
⤷ pA2 6.9 against LTC4 Ca2+ mobilisation assay in HUVEC [2]
CysLT1 receptor Primary target of this compound Hs Antagonist Antagonist 8.9 pKi - 1,5
⤷ pKi 8.9 zafirlukast is only about 100-fold selective for CysLT1 [1,5]
Description: against [3H]LTD4 in human lung parenchyma
CysLT1 receptor Primary target of this compound Hs Antagonist Antagonist 7.7 – 9.6 pIC50 - 4,6,8
⤷ pIC50 9.6 (IC50 2.6x10-10 M) against 33nM LTD4 Ca2+ mobilization assay in HEK-293 [6]
pIC50 8.6 – 8.7 (IC50 2.6x10-9 – 1.8x10-9 M) [4,6]
Description: against [3H]LTD4 in COS-7 or HEK-293 cells
pIC50 7.7 (IC50 2x10-8 M) against 10nM LTD4 aequorin-based Ca2+ assay in CHO cells [8]
CysLT2 receptor Hs Antagonist Antagonist 5.1 – 5.2 pIC50 - 3,8
⤷ pIC50 5.2 (IC50 7x10-6 M) against 10nM LTD4 aequorin-based Ca2+ assay in CHO cells [8]
pIC50 5.1 (IC50 7.397x10-6 M) againist [3H]LTD4 in COS-7 cells [3]
Selectivity at nuclear hormone receptors
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
Peroxisome proliferator-activated receptor-γ Hs Agonist Agonist 5.6 pEC50 - 7
⤷ pEC50 5.6 (EC50 2.44x10-6 M) [7]
Selectivity at enzymes
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Target Sp. Type Action Value Parameter Concentration range (M) Reference
epoxide hydrolase 2 Hs Inhibitor Inhibition 5.7 pIC50 - 7
⤷ pIC50 5.7 (IC50 2x10-6 M) [7]
Ligand mentioned in the following text fields
Leukotriene receptors overview