prevalent all over the world, and identification and mechanism‐of‐action studies of the responsible toxins serve to protect ecosystems, livestock, and humans alike. In this study, the chlorosulfopeptide aeruginosin 828A, which rivals the well‐known toxin microcystin LR in terms of crustacean toxicity, has been synthesized for the first time. Furthermore, three congeners with different permutations of the chloride
有害的藻华在世界范围内日趋普遍,负责任毒素的鉴定和作用机理研究有助于保护生态系统,牲畜和人类。在这项研究中,首次合成了
氯磺肽
铜绿素酶828A,与甲壳素的毒性相媲美,该毒素与著名的
微囊藻毒素LR相媲美。此外,制备了具有不同排列的
氯和
硫酸根基团的三个同类物,从而能够进行毒性研究,而没有被其他天然毒素污染的风险。用敏感的甲壳类沙棘头鼠的毒性试验表明,引入
硫酸根基团会导致明显的毒性,而NMR光谱学证据表明,
氯化物取代基可调节构象,