Synthesis, Spectroscopic Properties and Antipathogenic Activity of New Thiourea Derivatives
作者:Carmen Limban、Luminita Marutescu、Mariana Carmen Chifiriuc
DOI:10.3390/molecules16097593
日期:——
A number of acylthioureas, 2-((4-methylphenoxy)methyl)-N-(aryl-carbamothioyl)benzamides (aryl = 3,5-dichlorophenyl, 2,3-dichlorophenyl, 3,4-dichloro-phenyl, 2,4,5-trichlorophenyl, 3,4,5-trichlorophenyl, 2-bromophenyl, 2,4-dibromophenyl, 2,5-dibromophenyl, 2-iodophenyl, 3-fluorophenyl, 2,3,4-trifluorophenyl, 2,4,5-trifluoro-phenyl, 2,4,6-trifluorophenyl) have been synthesized, characterized by elemental analysis, IR and NMR spectroscopy and tested for their interaction with bacterial cells in free and adherent state. The anti-pathogenic activity was correlated with the presence of one iodine, bromide or fluorine, and two or three chloride atoms on the N-phenyl substituent of the thiourea moiety, being significant especially on Pseudomonas aeruginosa and Staphylococcus aureus strains, known for their ability to grow in biofilms. Our results demonstrate the potential of these derivatives for further development of novel anti-microbial agents with antibiofilm properties.
合成了一些酰基硫脲化合物,2-((4-甲基苯氧)甲基)-N-(芳基氨基硫代羰基)苯酰胺(芳基 = 3,5-二氯苯基,2,3-二氯苯基,3,4-二氯苯基,2,4,5-三氯苯基,3,4,5-三氯苯基,2-溴苯基,2,4-二溴苯基,2,5-二溴苯基,2-碘苯基,3-氟苯基,2,3,4-三氟苯基,2,4,5-三氟苯基,2,4,6-三氟苯基),并通过元素分析、红外光谱和核磁共振光谱进行了表征,同时测试了其在自由状态和附着状态下与细菌细胞的相互作用。抗致病活性与硫脲部分N-苯基取代基上存在一个碘、溴或氟原子,以及两个或三个氯原子的情况相关,尤其在能在生物膜中生长的铜绿假单胞菌和金黄色葡萄球菌菌株上显著。我们的结果表明,这些衍生物在开发新型具有抗生物膜特性的抗微生物剂方面具有潜力。