Preparation and Biological Properties of Ring-Substituted Naphthalene-1-Carboxanilides
作者: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
DOI:10.3390/molecules190710386
日期:——
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.
在这项研究中,合成了二十二种环取代的萘-1-羧酸酰胺,并进行了表征。对合成的羧酸酰胺进行了初步的体外筛选,以检测其对副结核分枝杆菌(Mycobacterium avium subsp. paratuberculosis)的活性。N-(2-甲氧基苯基)萘-1-羧酸酰胺、N-(3-甲氧基苯基)萘-1-羧酸酰胺、N-(3-甲基苯基)萘-1-羧酸酰胺、N-(4-甲基苯基)萘-1-羧酸酰胺和N-(3-氟苯基)萘-1-羧酸酰胺对副结核分枝杆菌的活性是利福平的两倍,且是环丙沙星的三倍。最有效的抗分枝杆菌化合物对人单核细胞白血病THP-1细胞株表现出微不足道的毒性。通过研究分离的菠菜(Spinacia oleracea L.)叶绿体中的光合电子传递(PET)抑制来完成对化合物生物活性的测试。最活跃的化合物N-[4-(三氟甲基)苯基]萘-1-羧酸酰胺的PET抑制活性以IC50值表示为59 μmol/L。讨论了结构-活性关系。