[3H]EMPA   Click here for help

GtoPdb Ligand ID: 9467

 Ligand is labelled  Ligand is radioactive
Compound class: Synthetic organic
Comment: A radiolabelled version of the OX2 receptor-selective antagonist EMPA [1].
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 7
Hydrogen bond donors 0
Rotatable bonds 10
Topological polar surface area 101.08
Molecular weight 454.17
XLogP 3.09
No. Lipinski's rules broken 0
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Canonical SMILES COc1ccc(cn1)N(S(=O)(=O)c1ccccc1C)CC(=O)N(Cc1cccnc1)CC
Isomeric SMILES CCN(C(=O)CN(S(=O)(=O)c1ccccc1C)c1ccc(nc1)OC([3H])([3H])[3H])Cc1ccc(nc1)[3H]
InChI InChI=1S/C23H26N4O4S/c1-4-26(16-19-9-7-13-24-14-19)23(28)17-27(20-11-12-22(31-3)25-15-20)32(29,30)21-10-6-5-8-18(21)2/h5-15H,4,16-17H2,1-3H3/i3T3,13T
1. Malherbe P, Borroni E, Gobbi L, Knust H, Nettekoven M, Pinard E, Roche O, Rogers-Evans M, Wettstein JG, Moreau JL. (2009)
Biochemical and behavioural characterization of EMPA, a novel high-affinity, selective antagonist for the OX(2) receptor.
Br J Pharmacol, 156 (8): 1326-41. [PMID:19751316]
2. Malherbe P, Roche O, Marcuz A, Kratzeisen C, Wettstein JG, Bissantz C. (2010)
Mapping the binding pocket of dual antagonist almorexant to human orexin 1 and orexin 2 receptors: comparison with the selective OX1 antagonist SB-674042 and the selective OX2 antagonist N-ethyl-2-[(6-methoxy-pyridin-3-yl)-(toluene-2-sulfonyl)-amino]-N-pyridin-3-ylmethyl-acetamide (EMPA).
Mol Pharmacol, 78 (1): 81-93. [PMID:20404073]