- Investigations on the 1-(2-biphenyl)piperazine motif: identification of new potent and selective ligands for the serotonin(7) (5-HT(7)) receptor with agonist or antagonist action in vitro or ex vivo.
Investigations on the 1-(2-biphenyl)piperazine motif: identification of new potent and selective ligands for the serotonin(7) (5-HT(7)) receptor with agonist or antagonist action in vitro or ex vivo.
Journal of medicinal chemistry (2012-06-29)
Enza Lacivita, Daniela Patarnello, Nikolas Stroth, Antonia Caroli, Mauro Niso, Marialessandra Contino, Paola De Giorgio, Pantaleo Di Pilato, Nicola A Colabufo, Francesco Berardi, Roberto Perrone, Per Svenningsson, Peter B Hedlund, Marcello Leopoldo
PMID22738316
RESUMEN
Here we report the design, synthesis, and 5-HT(7) receptor affinity of a set of 1-(3-biphenyl)- and 1-(2-biphenyl)piperazines. The effect on 5-HT(7) affinity of various substituents on the second (distal) phenyl ring was analyzed. Several compounds showed 5-HT(7) affinities in the nanomolar range and >100-fold selectivity over 5-HT(1A) and adrenergic α(1) receptors. 1-[2-(4-Methoxyphenyl)phenyl]piperazine (9a) showed 5-HT(7) agonist properties in a guinea pig ileum assay but blocked 5-HT-mediated cAMP accumulation in 5-HT(7)-expressing HeLa cells.
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