作者:Mingxing Xiao、Wei Wu、Lin Wei、Xiaojie Jin、Xiaojun Yao、Zhixiang Xie
DOI:10.1016/j.tet.2014.09.028
日期:2015.6
The biomimetic total synthesis of potential anti-HIV (−)-isatisine A, a novel alkaloid with an unprecedented fused tetracyclic skeleton, was accomplished in eight steps from indole and known 4,6-O-isopropylidene-protected glucal. The synthetic strategy was inspired primarily by the proposed biogenetic hypothesis that indole C-furanoside would be derived from indole C-glucoside via a ring contractive
从吲哚和已知的4,6 - O-异亚丙基保护的葡糖醛分八步完成了潜在的抗HIV(-)-isatisine A(具有前所未有的融合四环骨架的新型生物碱)的仿生全合成。合成策略主要是受到提出的生物遗传假设的启发,该假设是吲哚C-呋喃糖苷将通过环收缩性苯甲酸重排而衍生自吲哚C-葡糖苷。通过模型研究可以实现生物遗传学假设:通过苯甲酸重排将O-葡萄糖苷转化为O-呋喃糖苷。