Preparation and Biological Properties of Ring-Substituted Naphthalene-1-Carboxanilides

Autor: Tomas Gonec, Jiri Kos, Eoghan Nevin, Rodney Govender, Matus Pesko, Jan Tengler, Ivan Kushkevych, Vendula Stastna, Michal Oravec, Peter Kollar, Jim O'Mahony, Katarina Kralova, Aidan Coffey, Josef Jampilek
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Molecules, Vol 19, Iss 7, Pp 10386-10409 (2014)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules190710386
Popis: In this study, a series of twenty-two ring-substituted naphthalene-1-carboxanilides were prepared and characterized. Primary in vitro screening of the synthesized carboxanilides was performed against Mycobacterium avium subsp. paratuberculosis. N-(2-Methoxyphenyl)naphthalene-1-carboxamide, N-(3-methoxy-phenyl)naphthalene-1-carboxamide, N-(3-methylphenyl)naphthalene-1-carboxamide, N-(4-methylphenyl)naphthalene-1-carboxamide and N-(3-fluorophenyl)naphthalene-1-carboxamide showed against M. avium subsp. paratuberculosis two-fold higher activity than rifampicin and three-fold higher activity than ciprofloxacin. The most effective antimycobacterial compounds demonstrated insignificant toxicity against the human monocytic leukemia THP-1 cell line. The testing of biological activity of the compounds was completed with the study of photosynthetic electron transport (PET) inhibition in isolated spinach (Spinacia oleracea L.) chloroplasts. The PET-inhibiting activity expressed by IC50 value of the most active compound N-[4-(trifluoromethyl)phenyl]naphthalene-1-carboxamide was 59 μmol/L. The structure-activity relationships are discussed.
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