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  • Title: Synthesis and antibacterial activity of some imidazole-5-(4H)one derivatives.
    Author: Saravanan S, Selvan PS, Gopal N, Gupta JK, De B.
    Journal: Arch Pharm (Weinheim); 2005 Oct; 338(10):488-92. PubMed ID: 16211653.
    Abstract:
    In the present study, several substituted oxazolones were synthesized by condensation of benzoylglycine with different aldehydes. From such oxazolones, substituted imidazolones were synthesized by condensation with ethylenediamine, urea and 4-N,N-dimethylaminoaniline. All these synthesized compounds produced significant antibacterial activities. Furthermore, compounds containing -CH(2)CH(2)NH(2), -CONH(2) and -C(6)H(4)-N(CH(3))(2) groups as substitutents on the imidazolones were found to be potent antibacterial agents. Thus, among the twelve compounds, 1-(2-aminoethyl)-2-phen yl-4-(4-(dimethylamino)benzylidene)imidazole-5-(4H)one (4d), 1-carboxamido-2-phenyl-4-(4-(dimethylamino)benzylidene)imidazole-5-(4H)one (4e) and 1-(4-(N,N-dimethylamino)phenyl)-2-phenyl-4-(4-(dimethylamino)benzylidene)imidazole-5-(4H)one (4f) were found to have a significant higher antibacterial activity than the other substituted imidazolones. Compound 4e was the most active one in this series.
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