Synthesis of 9-Dechlorochrysophaentin A Enables Studies Revealing Bacterial Cell Wall Biosynthesis Inhibition Phenotype in <i>B. subtilis</i>
作者:Christopher R. Fullenkamp、Yen-Pang Hsu、Ellen M. Quardokus、Gengxiang Zhao、Carole A. Bewley、Michael VanNieuwenhze、Gary A. Sulikowski
DOI:10.1021/jacs.0c04917
日期:2020.9.23
an antimicrobial naturalproduct isolated from the marine alga C. taylori in milligram quantity. Structurally, chrysophaentin A features a macrocyclic biaryl ether core incorporating two trisubstituted chloroalkenes at its periphery. A concise synthesis of iso- and 9-dechlorochrysophaentin A enabled by a Z-selective RCM cyclization followed by an oxygen to carbon ringcontraction is described. Fluorescent
Chrysophaentin A 是一种从海藻 C. taylori 中以毫克量分离的抗菌天然产物。在结构上,chrysophaentin A 具有一个大环联芳醚核,在其外围结合了两个三取代的氯代烯烃。描述了通过 Z 选择性 RCM 环化和氧到碳环收缩实现的异和 9-脱氯金黄素 A 的简明合成。荧光显微镜研究表明,9-dechlorochrysophaentins 通过分解关键的二分体蛋白(细菌细胞壁生物合成和分裂的基石)来抑制细菌细胞壁的生物合成。