Total Synthesis of Aculeatin A via Double Intramolecular Oxa-Michael Addition of Secondary/Tertiary Alcohols
作者:Hongliang Yao、Liyan Song、Rongbiao Tong
DOI:10.1021/jo4026868
日期:2014.2.7
A new synthetic strategy was developed for a concise total synthesis of aculeatin A as a single spiroisomer in both racemic and enantioselective fashions in 8–10 steps with ∼10% overall yield from the known alkyne 11, featuring phenol oxidative dearomatization, double intramolecular oxa-Michael addition of secondary/tertiary alcohols, and chemo- and stereoselective reduction of ketone. The new synthetic
已开发出一种新的合成策略,以8-10个步骤,以消旋和对映选择性方式,以单一螺旋异构体形式的简明全合成,以已知的炔烃11的总收率约为10%,具有酚氧化脱芳香化作用,双分子内氧杂-迈克尔添加仲/叔醇,以及化学和立体选择性还原酮。新的合成策略极大地加快了使用有效的抗原生动物抗球蛋白aculeatin A,6- epi -aculeatin D及其类似物的途径。