Using an iron-mediated construction of the carbazole framework, the first synthesis of streptoverticillin is described and the absolute configuration of the natural product is confirmed. The synthesis exploits a novel oxygen-mediated aromatization of tricarbonyliron-coordinated dihydrocarbazoles. Moreover, non-natural (R)-streptoverticillin is prepared for comparison.
利用
铁介导的
喹啉框架构建方法,本文描述了第一个
克拉霉素的合成,并确认了
天然产物的绝对构型。该合成利用了一种新颖的氧介导芳香化反应,涉及三
羰基铁配位的二氢
喹啉。此外,还合成了非天然的(R)-
克拉霉素以进行比较。