1. Heterocyclic replacement of the central phenyl core of diamine-based histamine H3 receptor antagonists
- Author
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Swanson, Devin M., Shah, Chandra R., Lord, Brian, Morton, Kirsten, Dvorak, Lisa K., Mazur, Curt, Apodaca, Richard, Xiao, Wei, Boggs, Jamin D., Feinstein, Mark, Wilson, Sandy J., Barbier, Ann J., Bonaventure, Pascal, Lovenberg, Timothy W., and Carruthers, Nicholas I.
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HISTAMINE receptors , *ACETIC acid , *ORGANIC synthesis , *PHARMACEUTICAL chemistry , *HETEROCYCLIC compounds , *DICHLOROMETHANE , *LABORATORY rats - Abstract
Abstract: A series of small molecules consisting of a heterocyclic core flanked by two basic functionalities were synthesized and screened for in vitro affinity at the human histamine H3 receptor (hH3R). Nine of the twenty-eight compounds tested were found to possess a hH3R K i of less than 5nM and consisted of a diverse range of central hetero-aromatic linkers (pyridine, pyrazine, oxazole, isoxazole, thiazole, furan, thiophene, and pyrrole). One member of this series, (4-isopropyl-piperazin-1-yl)-(6-piperidin-1-ylmethyl-pyridin-3-yl)-methanone (37), was found to be a high affinity, selective antagonist that crosses the blood-brain barrier and occupies H3 receptors after oral administration in the rat. [Copyright &y& Elsevier]
- Published
- 2009
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