Antimicrobial and Anti-biofilm Activity of Thiourea Derivatives Bearing 3-amino-1H-1,2,4-triazole Scaffold
作者:Joanna Stefanska、Karolina Stepien、Anna Bielenica、Daniel Szulczyk、Barbara Miroslaw、Anna E Koziol、Giuseppina Sanna、Filippo Iuliano、Silvia Madeddu、Michal Jozwiak、Marta Struga
DOI:10.2174/1573406412666151204003146
日期:2016.6.23
3-amino-1H-1,2,4-triazole with the commercial aliphatic and aromatic isothiocyanates. The aliphatic isothiocyanate was used as reagent leading to substitution on NH atom of 3-aminotriazole ring, whereas the triazole amino group was substituted when isothiocyanate group was bonded to the Csp2 hybridized atom, e.g. an aryl or C=O fragment. All compounds were evaluated in vitro for the antimicrobial activity
通过使3-氨基-1H-1,2,4-三唑与市售的脂族和芳族异硫氰酸酯反应,制得了21种硫脲衍生物。脂族异硫氰酸酯用作导致3-氨基三唑环的NH原子上取代的试剂,而当异硫氰酸酯基团键合至Csp2杂化原子,例如芳基或C = O片段时,三唑氨基被取代。在体外评估所有化合物的抗微生物活性。衍生物1、2、4、8、9、10和12对革兰氏阳性球菌(金黄色葡萄球菌和表皮葡萄球菌)显示出最高的抑制作用。观察到的MIC值在4–32μg/ mL范围内。还测试了化合物对医院中耐金霉素的金黄色葡萄球菌菌株的体外抗菌活性。观察到的MIC值从4到64μg/ mL不等。产物4和10有效地抑制了耐甲氧西林和表皮葡萄球菌标准菌株的生物膜的形成。与对照相比,发现化合物10的IC50值为2–6μg/ mL更有希望。此外,评估了所有研究的硫脲对MT-4细胞的细胞毒性。化合物18具有明显的细胞毒性(CC50 = 8μM)。