meso-Dihydroguaiaretic acid derivatives with antibacterial and antimycobacterial activity
作者:Karen Reyes-Melo、Abraham García、Antonio Romo-Mancillas、Elvira Garza-González、Verónica M. Rivas-Galindo、Luis D. Miranda、Javier Vargas-Villarreal、Juan Manuel J. Favela-Hernández、María del Rayo Camacho-Corona
DOI:10.1016/j.bmc.2017.07.047
日期:2017.10
moderate activity against methicillin-resistant Staphylococcus aureus, whereas 30 and 31 showed better results than levofloxacin against vancomycin-resistant Enterococcus faecium. Additionally, nineteen meso-DGA derivatives displayed moderate to potent activity against M. tuberculosis H37Rv with minimum inhibitory concentration (MIC) values ranging from 3.125 to 50 µg/mL. Seven meso-DGA derivatives bearing
三十三个内消旋-dihydroguaiaretic酸(内消旋承载酯,醚,和氨基-醚-DGA)衍生物的合成。所有衍生物均针对12株革兰氏阳性和革兰氏阴性细菌的耐药临床分离株进行了测试,包括敏感(H37Rv)和耐多药结核分枝杆菌菌株。在供试化合物,四个酯(7,11,13,和17),一个醚(23),和三个氨基醚(30,31,和33)显示出中度活性对耐甲氧西林金黄色葡萄球菌,而30和31对耐万古霉素的粪肠球菌的效果优于左氧氟沙星。此外,有19种内消旋-DGA衍生物对结核分枝杆菌H37Rv表现出中度至有效的活性,其最小抑菌浓度(MIC)值为3.125至50 µg / mL。七个带有氨基醚的内消旋-DGA衍生物(26 – 31和33)对结核分枝杆菌H37Rv和G122菌株表现出最低的MIC ,其中31个与乙胺丁醇一样有效(MIC为3.125和6.25 µg / mL)。具有立体和疏水特征的带正电荷的基团前体的存在(例如meso