Design,synthesis and biological activity of flavonoid derivatives as selective agonists for neuromedin U 2 receptor |
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Institution: | 1. Department of Chemistry, University of Lucknow, Lucknow 226 007, India;2. Department of Zoology, University of Lucknow, Lucknow 226 007, India |
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Abstract: | Central neuromedin U 2 receptor (NMU2R) plays important roles in the regulation of food intake and body weight. Identification of NMU2R agonists may lead to the development of pharmaceutical agents to treat obesity. Based on the structure of rutin, a typical flavonoid and one of the NMU2R agonists we previously identified from an in-house made natural product library, 30 flavonoid derivatives have been synthesized and screened on a cell-based reporter gene assay. A number of compounds were found to be selective and highly potent to NMU2R. For example, the EC50 value of compound NRA 4 is very close to that of NMU, the endogenous peptide ligand of NMU2R. Structure–activity relationship analysis revealed that a 3-hydroxyl group in ring C and a 2′-fluoride group in ring B were essential for this class of compounds to be active against NMU2R. |
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Keywords: | NMU2R Structure–activity relationship Flavonoid derivatives |
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