Design and synthesis of C modified and ring-truncated canthin-6-one analogues as effective membrane-active antibacterial agents
作者:Jiangkun Dai、Wenjia Dan、Yunyun Zhang、Mengfan He、Junru Wang
DOI:10.1016/j.bmcl.2018.06.001
日期:2018.10
canthin-6-one analogues were designed and synthesized in order to study their antibacterial activity and structure–activity relationships. Compound 22 showed a broad spectrum of antibacterial activity and exhibited better bactericidal effect (8-fold superiority against Staphylococcus aureus and 2-fold superiority against Ralstonia solanacearum) than fosfomycin sodium and propineb with a minimum inhibitory
设计并合成了一系列canthin-6-one类似物,以研究其抗菌活性和结构-活性关系。化合物22显示的抗菌活性范围广,并且与磷霉素钠和丙戊酸相比具有更好的杀菌效果(抗金黄色葡萄球菌8倍,对青枯雷尔氏菌2倍),最小抑菌浓度值为2μg/ mL。而且,它显示出低的细胞毒性,对发芽率的刺激和良好的“类药物”性质。通过荧光显微镜,扫描电子显微镜,细胞质β进一步研究膜的活性机制。-半乳糖苷酶泄漏测定和分子对接的评估。结果表明22可能通过破坏细菌细胞膜并影响其形成而发挥其杀菌作用,两者均可能导致细胞死亡。的体内抗菌测定用68%的保护效力证明了C环截短铁屎米-6-酮的电位22作为新的杀菌剂。