The synthesis of nine alkaloid sesquiterpenoids has been accomplished in only 5–8 steps in excellent overall yield (3–21 %). The dual nucleophilicity of the indole enabled two divergent termination pathways to be unlocked: an unprecedented N-termination and a previously challenging C-termination step. Furthermore, a bioinspired late-stage Witkop oxidation enabled the first total synthesis of greenwaylactams
九种
生物碱倍半萜类化合物的合成仅需 5-8 个步骤即可完成,总产率极佳 (3-21%)。
吲哚的双重亲核性使得两种不同的终止途径得以解锁:前所未有的 N 终止步骤和之前具有挑战性的 C 终止步骤。此外,受
生物启发的后期 Witkop 氧化首次实现了 greenwaylactams A−C 的全合成。