The Extracellular Entrance Provides Selectivity to Serotonin 5-HT7Receptor Antagonists with Antidepressant-like Behavior in Vivo

Journal of Medicinal Chemistry
2014.0

Abstract

The finding that ergotamine binds serotonin receptors in a less conserved extended binding pocket close to the extracellular entrance, in addition to the orthosteric site, allowed us to obtain 5-HT7R antagonist 6 endowed with high affinity (Ki=0.7 nM) and significant 5-HT1AR selectivity (ratio>1428). Compound 6 exhibits in vivo antidepressant-like effect (1 mg/kg, ip) mediated by the 5-HT7R, which reveals its interest as a putative research tool or pharmaceutical in depression disorders.

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