An approach toward the synthesis of PPAP natural product garsubellin A: construction of the tricyclic core
作者:Goverdhan Mehta、Mrinal K. Bera
DOI:10.1016/j.tet.2012.12.066
日期:2013.2
In a study directed toward the bioactive natural product garsubellin A, an expedient route to the bicyclo[3.3.1]nonan-9-one bearing tricyclic core, with a bridgehead anchored tetrahydrofuran ring, is delineated. The approach emanating from commercially available dimedone involved a DIBAL-H mediated retro aldol/re-aldol cyclization cascade and a PCC mediated oxidative cyclization as the key steps.
在针对具有生物活性的天然产物Garsubellin A的研究中,描绘了一条通向具有双环锚定四氢呋喃环的双环[3.3.1] nonan-9-one三环核的便捷途径。从可商购的二甲酮衍生的方法涉及DIBAL-H介导的逆醛醇/再醛醇环化级联反应和PCC介导的氧化环化反应为关键步骤。