Abstract
A series of 5-alkyltryptamines (6) and the corresponding conformationally constrained analogues (8) have been synthesized. The structure activity relationships (SAR) at the 5-position of the indole skeleton and the ethylamine side chain have been studied. Functional activities were assessed using isolated rabbit saphenous vein. Potent, selective ligands were found (6e, Ki 2.5 nM, 5-HT1B/5-HT1D 125-fold) that have potential for treating acute migraine.
MeSH terms
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Animals
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In Vitro Techniques
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Protein Binding
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Rabbits
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Receptor, Serotonin, 5-HT1D
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Receptors, Serotonin / drug effects*
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Receptors, Serotonin / metabolism
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Saphenous Vein / drug effects
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Serotonin Receptor Agonists / chemistry
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Serotonin Receptor Agonists / metabolism
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Serotonin Receptor Agonists / pharmacology*
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Tryptamines / chemistry*
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Tryptamines / metabolism
Substances
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Receptor, Serotonin, 5-HT1D
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Receptors, Serotonin
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Serotonin Receptor Agonists
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Tryptamines