Shortest Enantioselective Total Syntheses of (+)-Isolaurepinnacin and (+)-Neoisoprelaurefucin
作者:Victoria Sinka、Daniel A. Cruz、Víctor S. Martín、Juan I. Padrón
DOI:10.1021/acs.orglett.2c01769
日期:2022.7.29
The shortest enantioselective total syntheses of (+)-isolaurepinnacin and (+)-neoisoprelaurefucin have been accomplished. These syntheses were based on a common parallel synthetic strategy using Prins–Peterson cyclization in their core construction. In only one step, a seven-membered ring oxacycle with the correct cis-stereochemistry ring closure and the Δ4 position of the endocyclic double bond in
(+)-isolaurepinnacin 和 (+)-neoisoprelaurefucin 的最短对映选择性全合成已经完成。这些合成基于在其核心构造中使用 Prins-Peterson 环化的通用并行合成策略。仅一步,就获得了具有正确的顺式立体化学闭环和(+)-异月桂醇中的内环双键的Δ 4位置的七元环氧杂环。这种不饱和也是加入(+)-新异丙月桂酸碱上的溴二氧杂环戊烷所必需的。