Design, synthesis, antimicrobial activity and molecular docking study of cationic bis‐benzimidazole‐silver(I) complexes
作者:Elvan Üstün、Neslihan Şahin、İlknur Özdemir、Selami Günal、Nevin Gürbüz、İsmail Özdemir、David Sémeril
DOI:10.1002/ardp.202300302
日期:2023.10
series of bis(1-alkylbenzimidazole)silver(I) nitrate and bis(1-alkyl-5,6-dimethylbenzimidazole)silver(I) nitrate complexes, in which the alkyl substituent is either an allyl, a 2-methylallyl, an isopropyl or a 3-methyloxetan-3-yl-methyl chain, were synthesized and fully characterized. The eight N-coordinated silver(I) complexes were screened for both antimicrobial activities against Gram-negative (Escherichia
两个系列的双(1-烷基苯并咪唑)硝酸银(I)和双(1-烷基-5,6-二甲基苯并咪唑)硝酸银(I)络合物,其中烷基取代基是烯丙基、2-甲基烯丙基、合成并充分表征了异丙基或 3-甲基氧杂环丁烷-3-基-甲基链。筛选了八种N配位银 (I) 复合物的抗菌活性,包括革兰氏阴性菌(大肠杆菌、铜绿假单胞菌、肺炎克雷伯菌和鲍曼不动杆菌)和革兰氏阳性菌(金黄色葡萄球菌、金黄色葡萄球菌MRSA 和粪肠球菌)对白色念珠菌和光滑念珠菌菌株的细菌和抗真菌活性。当用银复合物处理革兰氏阴性菌和革兰氏阳性菌时,发现中等最小抑制浓度 (MIC) 为 0.087 μmol/mL。尽管如此,针对这两种真菌测得的 MIC 值为 0.011 μmol/mL,比众所周知的氟康唑低两倍。此外,将大肠杆菌DNA旋转酶和光滑念珠菌CYP51的结构与8种有机金属配合物进行分子对接,并采用基于密度泛函理论的计算方法计算分子反应描述符。