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  • Title: Synthesis and spectral characterization of a new class of N-(N-methylpiperazinoacetyl)-2,6-diarylpiperidin-4-ones: antimicrobial, analgesic and antipyretic studies.
    Author: Aridoss G, Parthiban P, Ramachandran R, Prakash M, Kabilan S, Jeong YT.
    Journal: Eur J Med Chem; 2009 Feb; 44(2):577-92. PubMed ID: 18485539.
    Abstract:
    A series of N-(N-methylpiperazinoacetyl)-2,6-diarylpiperidin-4-ones (13c-21c) were synthesized by the base catalyzed nucleophilic substitution of N-chloroacetyl-2,6-diarylpiperidin-4-ones obtained from their corresponding 2,6-diarylpiperidin-4-ones with N-methylpiperazine. These newly synthesized compounds were characterized by one- and two-dimensional NMR spectral studies. In all the cases, the piperazine ring adopted normal chair conformation with equatorial orientation of methyl group irrespective of the non-chair conformations of the piperidin-4-one moiety. All the compounds were screened for their possible antibacterial and antifungal activities against a spectrum of microbial agents besides analgesic and antipyretic activities. These biological studies proved that compounds 17c/18c against bacterial and 18c/20c against fungal strains exhibited promising antimicrobial activities whereas 17c/19c and 18c/19c showed beneficial analgesic and antipyretic profiles, respectively, at a concentration of 60mg/kg and were also found to be more potent than the reference drug.
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