作者:Martin E. Fox、Chi Li、Joseph P. Marino、Larry E. Overman
DOI:10.1021/ja990404v
日期:1999.6.1
first enantioselective total synthesis of scopadulcic acid A is described. The key step is a cascade intramolecular Heck reaction of a methylenecycloheptene iodide, which generates the B, C, and D rings of the scopadulan ring system in 90% yield as a single stereoisomer. A distinctive feature of these syntheses is the use of stereoselective enolization to dictate which enantiomer of the natural product
描述了第一次对映选择性全合成 scopadulcic acid A。关键步骤是亚甲基环庚烯碘化物的级联分子内 Heck 反应,以 90% 的产率生成 scopadulan 环系统的 B、C 和 D 环,作为单一立体异构体。这些合成的一个显着特征是使用立体选择性烯醇化来决定产生天然产物的哪种对映异构体。