Guanidine and 2-Aminoimidazoline Aromatic Derivatives as a2-Adrenoceptor Ligands: Searching for Structure-Activity Relationships
- Rodriguez, F. 13
- Rozas, I. 1
- Ortega, J.E. 24
- Erdozain, A.M. 24
- Meana, J.J. 24
- Callado, L.F. 24
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1
University College Dublin
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2
Centro de Investigacion Biomedica en Red de Salud Mental
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Centro de Investigacion Biomedica en Red de Salud Mental
Madrid, España
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3
Universidad de La Rioja
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4
Universidad del País Vasco/Euskal Herriko Unibertsitatea
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Universidad del País Vasco/Euskal Herriko Unibertsitatea
Lejona, España
ISSN: 0022-2623
Datum der Publikation: 2009
Ausgabe: 52
Nummer: 3
Seiten: 601-609
Art: Artikel
Andere Publikationen in: Journal of Medicinal Chemistry
Zusammenfassung
In this paper, we report the synthesis of three new 2-aminoimidazoline (compounds 4b, 5b, and 6b) and three new guanidine derivatives (compounds 7b, 8b, and 9b) as potential α2-adrenoceptor antagonists for the treatment of depression. Their pharmacological profile was evaluated in vitro in human brain tissue and compared to the potential antidepressant 1 and the agonists 2 and 3. All new substrates were evaluated by in vitro functional [35S]GTPyS binding assays in human prefrontal cortex to determine their agonistic or antagonistic activity. Compound 8b was found to be an antagonist in vitro and was subjected to in vivo microdialysis experiments in rats. Moreover, a new synthesis of the precursor amines for compounds 4b-9b is presented. © 2009 American Chemical Society.