Antibacterial and Herbicidal Activity of Ring-Substituted 2-Hydroxynaphthalene-1-carboxanilides

Autor: Katarina Kralova, Josef Jampilek, Aidan Coffey, Alois Cizek, Ales Imramovsky, Jim O'Mahony, Peter Kollar, Diogo Pereira, Barbara Chambel, Stanislava Keltosova, Matus Pesko, Rodney Govender, Iveta Zadrazilova, Jiri Kos, Tomas Gonec
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Molecules, Vol 18, Iss 8, Pp 9397-9419 (2013)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules18089397
Popis: 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 (IC50 = 29 µmol/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 µmol/L against methicillin-resistant S. aureus and MIC = 51.9 µmol/L against M. marinum, or 2-hydroxy-N-phenylnaphthalene-1-carboxamide demonstrated MIC = 15.2 µmol/L against M. kansasii. The structure-activity relationships for all compounds are discussed.
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