Discovery and Total Synthesis of Doscadenamide A: A Quorum Sensing Signaling Molecule from a Marine Cyanobacterium
作者:Xiao Liang、Susan Matthew、Qi-Yin Chen、Jason C. Kwan、Valerie J. Paul、Hendrik Luesch
DOI:10.1021/acs.orglett.9b02525
日期:2019.9.20
Quorum sensing (QS) plays a critical role in the regulation of bacterial pathogenesis. Doscadenamide A (1a) was isolated from a marine cyanobacterium, its structure elucidated by NMR, and its activity linked to QS induction. The total synthesis of 1a was developed, and the absolute configuration confirmed through comparison of the isolated natural product with synthetic diastereomers. Our preliminary
群体感应 (QS) 在细菌发病机制的调节中起关键作用。Doscadenamide A ( 1a ) 从海洋蓝藻中分离得到,其结构通过 NMR 阐明,其活性与 QS 诱导有关。开发了1a的全合成方法,通过将分离的天然产物与合成的非对映异构体进行比较,确认了绝对构型。我们的初步调查表明,1a可以以依赖 LasR 的方式激活 QS 信号传导。