作者:Maoqun Tian、Ming Yan、Phil S. Baran
DOI:10.1021/jacs.6b09701
日期:2016.11.2
route to a small family of exotic marine alkaloids known as the araiosamines has been developed, and their absolute configuration has been assigned. The dense array of functionality, high polarity, and rich stereochemistry coupled with equilibrating topologies present an unusual challenge for chemical synthesis and an opportunity for innovation. Key steps involve the use of a new reagent for guanidine installation
已经开发了一种称为 araiosamines 的外来海洋生物碱小家族的简明路线,并且已经指定了它们的绝对构型。密集的功能阵列、高极性和丰富的立体化学加上平衡拓扑为化学合成带来了不寻常的挑战和创新的机会。关键步骤包括使用新的胍安装试剂、显着选择性的 C-H 功能化,以及与假定的生物合成中间体相交的令人惊讶的简单最后一步。尽管有相反的报告称没有活性,但合成的花生四烯胺显示出对革兰氏阳性和阴性细菌的效力。