Biosynthetically Inspired Divergent Approach to Monoterpene Indole Alkaloids: Total Synthesis of Mersicarpine, Leuconodines B and D, Leuconoxine, Melodinine E, Leuconolam, and Rhazinilam
作者:Yang Yang、Yu Bai、Siyuan Sun、Mingji Dai
DOI:10.1021/ol503150c
日期:2014.12.5
Inspired by their potential biosynthesis, we have developed divergent total syntheses of seven monoterpene indole alkaloids including mersicarpine, leuconodines B and D, leuconoxine, melodinine E, leuconolam, and rhazinilam, and one unnatural analogue with an unprecedented structural skeleton. The key steps involve a Witkop–Winterfeldt oxidative indole cleavage followed by transannular cyclization
受到其潜在生物合成的启发,我们开发了七种单萜吲哚生物碱的不同总合成物,其中包括美西卡平,亮二酮B和D,亮氨酸,甜菜碱E,亮氨酸和鼠李糖,以及一种具有空前结构骨架的非天然类似物。关键步骤涉及Witkop–Winterfeldt氧化吲哚裂解,然后进行环环化。然后,通过将跨环环化产物的官能团配对成不同的反应模式,将其转化为相应的结构骨架。