Palladium-Catalyzed Routes to Geranylated or Farnesylated Phenolic Stilbenes: Synthesis of Pawhuskin C and Schweinfurthin J
作者:Narshinha Argade、Mandeep Singh
DOI:10.1055/s-0032-1316765
日期:——
total syntheses of bioactive natural products pawhuskin C and schweinfurthin J were accomplished in good overall yields. The Heck, Stille, or Suzuki coupling reactions of two different electron-rich phenolic segments bearing geranylated or farnesylated units were involved in the decisive step. The Sonogashira coupling reaction followed by palladium-catalyzed chemo- and stereoselective cis-reduction of
摘要 从双重MOM保护的间苯三酚开始,生物活性天然产物pawhuskin C和schweinfurthin J的简便的总合成以良好的总收率完成。决定性的步骤涉及两个不同的带有geranylated或farnesylated单元的富电子酚段的Heck,Stille或Suzuki偶联反应。还描述了Sonogashira偶联反应,然后进行钯催化的炔烃单元的化学和立体选择性顺式还原,然后进行异构化,得到所需的天然产物。 从双重MOM保护的间苯三酚开始,生物活性天然产物pawhuskin C和schweinfurthin J的简便的总合成以良好的总收率完成。决定性的步骤涉及两个不同的带有geranylated或farnesylated单元的富电子酚段的Heck,Stille或Suzuki偶联反应。还描述了Sonogashira偶联反应,然后进行钯催化的炔烃单元的化学和立体选择性顺式还原,然后进行异构化,得到所需的天然产物。