作者:Sarah A. French、Christopher J. Sumby、David M. Huang、Jonathan H. George
DOI:10.1021/jacs.2c09978
日期:2022.12.21
Inspired by a new biosynthetic hypothesis, we report a biomimetic total synthesis of atrachinenins A and B that explains their racemic nature. The synthesis exploits an intermolecular Diels–Alder reaction between a quinone meroterpenoid and E-β-ocimene, followed by intramolecular (3 + 2) cycloaddition and a late-stage aerobic oxidation. Divergent transformations of a simple model system gave several
受新的生物合成假设的启发,我们报告了 atrachinenins A 和 B 的仿生全合成,这解释了它们的外消旋性质。该合成利用了醌类萜类化合物和E -β-罗勒烯之间的分子间 Diels-Alder 反应,然后是分子内 (3 + 2) 环加成和后期有氧氧化。一个简单模型系统的发散转变给出了几个复杂的多环支架,同时也暗示了 atrachinenin C 的结构修正。