%0 Journal Article
%T Antibacterial and Herbicidal Activity of Ring-Substituted 2-Hydroxynaphthalene-1-carboxanilides
%A Tomas Gonec
%A Jiri Kos
%A Iveta Zadrazilova
%A Matus Pesko
%A Rodney Govender
%A Stanislava Keltosova
%A Barbara Chambel
%A Diogo Pereira
%A Peter Kollar
%A Ales Imramovsky
%A Jim O'Mahony
%A Aidan Coffey
%A Alois Cizek
%A Katarina Kralova
%A Josef Jampilek
%J Molecules
%D 2013
%I MDPI AG
%R 10.3390/molecules18089397
%X In this study, a series of twenty-two ring-substituted 2-hydroxynaphthalene-1£¿carboxanilides were prepared and characterized. Primary in vitro screening of the synthesized compounds was performed against Staphylococcus aureus, three methicillin-resistant S. aureus strains, Mycobacterium marinum, M. kasasii, M. smegmatis. and M. avium paratuberculosis. The compounds were also tested for their activity related to inhibition of photosynthetic electron transport (PET) in spinach ( Spinacia oleracea L.) chloroplasts. 2-Hydroxy- N-phenylnaphthalene-1-carboxanilide and 2-hydroxy- N-(3-trifluoromethylphenyl)naphthalene-1-carboxamide (IC 50 = 29 ¦Ìmol/L) were the most active PET inhibitors. Some of tested compounds showed the antibacterial and antimycobacterial activity against the tested strains comparable or higher than the standards ampicillin or isoniazid. Thus, for example, 2-hydroxy- N-(3-nitrophenyl)naphthalene-1-carboxamide showed MIC = 26.0 ¦Ìmol/L against methicillin-resistant S. aureus and MIC = 51.9 ¦Ìmol/L against M. marinum, or 2-hydroxy- N-phenylnaphthalene-1-carboxamide demonstrated MIC = 15.2 ¦Ìmol/L against M. kansasii. The structure-activity relationships for all compounds are discussed.
%K hydroxynaphthalenecarboxanilides
%K lipophilicity
%K photosynthetic electron transport inhibition
%K spinach chloroplasts
%K in vitro antibacterial activity
%K in vitro antimycobacterial activity
%K in vitro cytotoxicity
%K structure-activity relationships
%U http://www.mdpi.com/1420-3049/18/8/9397