K-8794   Click here for help

GtoPdb Ligand ID: 9651

PDB Ligand
Compound class: Synthetic organic
Comment: K-8794 is an orally active selective ETB-receptor antagonist developed by Kowa in Japan. In 2017 it was crystalised in 5XPR with the Endothelin B receptor.
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 9
Hydrogen bond donors 2
Rotatable bonds 14
Topological polar surface area 162.9
Molecular weight 682.26
XLogP 5.91
No. Lipinski's rules broken 2
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Canonical SMILES COc1ccccc1Oc1c(OCCC(=O)Nc2c(C)cccc2C)nc(nc1NS(=O)(=O)c1ccc(cc1)C(C)(C)C)c1ncccn1
Isomeric SMILES COc1ccccc1Oc1c(OCCC(=O)Nc2c(C)cccc2C)nc(nc1NS(=O)(=O)c1ccc(cc1)C(C)(C)C)c1ncccn1
InChI InChI=1S/C36H38N6O6S/c1-23-11-9-12-24(2)30(23)39-29(43)19-22-47-35-31(48-28-14-8-7-13-27(28)46-6)32(40-34(41-35)33-37-20-10-21-38-33)42-49(44,45)26-17-15-25(16-18-26)36(3,4)5/h7-18,20-21H,19,22H2,1-6H3,(H,39,43)(H,40,41,42)
Bioactivity Comments
IC50's were determined via [125 ET-1] binding to HEK293 cells expressing the endothelin receptors.
Selectivity at GPCRs
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
ETB receptor Primary target of this compound Hs Antagonist Antagonist 8.2 pIC50 - 1
pIC50 8.2 (IC50 6x10-9 M) [1]
Ligand mentioned in the following text fields