First Total Syntheses and Antimicrobial Evaluation of Penicimonoterpene, a Marine-Derived Monoterpenoid, and Its Various Derivatives
作者:Jian-Chun Zhao、Xiao-Ming Li、James Gloer、Bin-Gui Wang
DOI:10.3390/md12063352
日期:——
the derivatives exhibited antimicrobial MIC values ranging from 0.25 to 4 μg/mL, which were stronger than those of the positive control. Notably, Compounds 3b and 10 showed extremely high selectively against plant-pathogenic fungus F. graminearum (MIC 0.25 μg/mL) and pathogenic bacteria E. coli (MIC 1 μg/mL), implying their potential as antimicrobial agents. SAR analysis of 1 and its derivatives indicated
海洋衍生的青霉烯 (±)-1 的首次全合成是通过 6-methylhept-5-en-2-one 的四个步骤实现的,使用 Reformatsky 反应作为构建基本碳骨架的关键步骤。还设计并合成了 1 的总共 24 种新衍生物。它们的结构通过对它们的 1H NMR、13C NMR 和 HRESIMS 数据的分析来表征。其中一些对嗜水气单胞菌、大肠杆菌、藤黄微球菌、金黄色葡萄球菌、鳗弧菌、哈维弧菌和/或副溶血性弧菌显示出显着的抗菌活性,一些对植物病原真菌(Alternaria brasicae、Colletotrichum gloeosporioides 和/或或禾谷镰刀菌)。一些衍生物的抗菌 MIC 值范围为 0.25 至 4 μg/mL,强于阳性对照。值得注意的是,化合物 3b 和 10 对植物病原真菌禾谷镰刀菌(MIC 0.25 μg/mL)和致病菌大肠杆菌(MIC 1 μg/mL)显示