Expedient discovery for novel antifungal leads: 1,3,4-Oxadiazole derivatives bearing a quinazolin-4(3H)-one fragment
作者:Xiaobin Wang、Jianqi Chai、Xiangyi Kong、Fei Jin、Min Chen、Chunlong Yang、Wei Xue
DOI:10.1016/j.bmc.2021.116330
日期:2021.9
Developing novel fungicide candidates are intensively promoted by the rapid emergences of resistant fungi that outbreak on agricultural production. Aiming to discovery novel antifungal leads, a series of 1,3,4-oxadiazole derivatives bearing a quinazolin-4(3H)-one fragment were constructed for evaluating their inhibition effects against phytopathogenic fungi in vitro and in vivo. Systematically structural
农业生产中爆发的抗性真菌的迅速出现,极大地促进了新型杀菌剂候选物的开发。为了发现新的抗真菌先导物,构建了一系列带有 quinazolin-4(3 H )-one 片段的 1,3,4-恶二唑衍生物,用于评估它们在体外和体内对植物病原真菌的抑制作用。生成系统的结构的优化的生物活性分子余32所识别作为对有希望的抑制剂纹枯病与体内200 μg/mL 时的预防效果为 58.63%。扫描电镜和透射电镜观察表明,生物活性分子I 32可以诱导菌丝的蔓延生长、菌丝表面的局部收缩和破裂、液泡的极度膨胀、细胞壁的显着变形、以及线粒体数量的减少。上述结果为发现带有喹唑啉-4(3 H )-one 和1,3,4-恶二唑片段的抗真菌先导物提供了不可或缺的补充。