Abstract
A series of new 3-[4-(aryl)piperazin-1-yl]-1-(benzo[b]thiophen-3-yl)propane derivatives were synthesized in an attempt to find a new class of antidepressant drugs with dual activity at 5-HT1A serotonin receptors and serotonin transporter. Title compounds were evaluated for in vitro activity on 5-HT1A receptor and 5-HT transporter. They show high nanomolar affinity for both activities, and in particular, compounds 1-(5-chlorobenzo[b]thiophen-3-yl)-3-[4-(2-methoxyphenyl)piperazin-1-yl]propan-1-ol (7) and 1-(5-fluorobenzo[b]thiophen-3-yl)-3-[4-(2-methoxyphenyl)piperazin-1-yl]propan-1-ol (8) show values (nM) of K(i)=30 and 2.3 for 5-HT1A receptors and K(i)=30 and 12 for serotonin transporters, respectively. In GTPgammaS binding assays, compound 8 revealed antagonist properties to 5-HT1A receptors. Such a pharmacological profile could lead to potent antidepressant agents with new dual mechanism of action.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Antidepressive Agents / chemical synthesis
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Antidepressive Agents / pharmacology*
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Binding, Competitive / drug effects
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Carrier Proteins / drug effects*
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Carrier Proteins / metabolism
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Dose-Response Relationship, Drug
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GTP-Binding Proteins / metabolism
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Guanosine 5'-O-(3-Thiotriphosphate) / metabolism
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Hippocampus / metabolism
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In Vitro Techniques
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Membrane Glycoproteins / drug effects*
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Membrane Glycoproteins / metabolism
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Membrane Transport Proteins*
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Nerve Tissue Proteins*
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Piperazines / chemical synthesis
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Piperazines / metabolism
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Piperazines / pharmacology*
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Rats
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Receptors, Serotonin / drug effects*
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Receptors, Serotonin / metabolism
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Receptors, Serotonin, 5-HT1
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Selective Serotonin Reuptake Inhibitors / metabolism
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Selective Serotonin Reuptake Inhibitors / pharmacology*
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Serotonin Antagonists / metabolism
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Serotonin Antagonists / pharmacology*
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Serotonin Plasma Membrane Transport Proteins
Substances
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Antidepressive Agents
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Carrier Proteins
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Membrane Glycoproteins
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Membrane Transport Proteins
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Nerve Tissue Proteins
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Piperazines
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Receptors, Serotonin
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Receptors, Serotonin, 5-HT1
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Serotonin Antagonists
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Serotonin Plasma Membrane Transport Proteins
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Serotonin Uptake Inhibitors
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Slc6a4 protein, rat
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Guanosine 5'-O-(3-Thiotriphosphate)
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GTP-Binding Proteins