Total syntheses of several iridolactones and the putative structure of noriridoid scholarein A: an intramolecular Pauson–Khand reaction based one-stop synthetic solution
作者:Abdus Salam、Sayan Ray、Md. Abu Zaid、Dileep Kumar、Tabrez Khan
DOI:10.1039/c9ob00855a
日期:——
A simple and general approach towards the total syntheses of several iridolactones such as (±)-boschnialactone, (±)-7-epi-boschnialactone, (±)-teucriumlactone, (±)-iridomyrmecin, (±)-isoboonein, (±)-7-epi-argyol, (±)-scabrol A, (±)-7-epi-scabrol A, and (±)-patriscabrol as well as the putative structure of scholarein A is delineated. The synthetic strategy features a diastereoselective intramolecular
一种简单而通用的方法,可以合成几种铱金属内酯,例如(±)-香sch内酯,(±)-7-表-香sch内酯,(±)-lac内酯,(±)-iridomyrmecin,(±)-异bo酮,(±描绘了)-7-表炔醇,(±)-scabrol A,(±)-7-表-scabrol A和(±)-patriscabrol以及推定的学者蛋白A结构。合成策略的特征是非对映选择性分子内Pauson-Khand反应(IPKR)来构建虹彩状骨架,然后进行一些战略性合成操作以进入目标单萜,包括具有不同的氧官能化模式的那些以及在高度立体可控的情况下具有3-5个连续的立体中心方式。另外,本发明包括sc甲酚A的第一个全合成。