isolated principally from subtropical plants belonging to the Phyllanthaceae family. Following a strategy based on alternative hypotheses for their biosynthesis, an easy and time-efficient divergent synthesis enabled access to twelve of those alkaloids featuring (neo)(nor)securinane skeletons. Moreover, this work permitted to reassign the absolute configurations of (+)-virosine B and (-)-episecurinol A
所谓的Securinega
生物碱构成了一类四环
生物活性的专门代谢产物,主要从竹兰科的亚热带植物中分离出来。遵循基于其
生物合成的替代假设的策略后,简单而省时的发散性合成使得能够获得十二种具有(新)(正)紫ur烷骨架的
生物碱。此外,这项工作允许重新分配(+)-病毒B和(-)-表
肌酐A的绝对构型。