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  • Title: 5-HT₂c receptor selectivity and structure-activity relationship of N-methyl-N-(1-methylpiperidin-4-yl)benzenesulfonamide analogs.
    Author: Jang JW, Baek JS, Choi GD, Park WK, Cho YS, Baek DJ, Pae AN.
    Journal: Bioorg Med Chem Lett; 2012 Jan 01; 22(1):347-52. PubMed ID: 22153942.
    Abstract:
    Agonists of the 5-HT(2C) receptor have attracted much attention as therapeutic agents for the treatment of obesity. Subtype selectivity against other 5-HT(2) receptors is one of the most important prerequisites for reducing side effects. We present the synthesis of N-methyl-N-(1-methylpiperidin-4-yl)benzenesulfonamide analogs and their structure-activity relationship studies on 5-HT(2A) and 5-HT(2C) receptors. Although the compounds showed nanomolar activity to the 5-HT(2C) receptor, their selectivity against the 5-HT(2A) receptor was modest to low. Molecular modeling studies using homology modeling and docking simulation revealed that selectivity originated from subtype specific residues. The observed binding modes and receptor-ligand interactions provided us a clue for optimizing the selectivity against the 5-HT(2A) receptor.
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