Biomimetic Synthesis and Proposal of Relative and Absolute Stereochemistry of Heronapyrrole C
作者:Jens Schmidt、Christian B. W. Stark
DOI:10.1021/ol300954s
日期:2012.8.17
The first synthesis of (−)-heronapyrrole C, the enantiomer of a unique farnesylated 2-nitropyrrole natural product is described. With none of the chiral centers of heronapyrrole C originally assigned, we proposed the most likely natural configuration on the basis of a putative biosynthetic pathway. The key step of the synthesis is a biomimetic polyepoxide cyclization cascade to establish the bis-THF
描述了(-)-heronapyrrole C的首次合成,这是一种独特的法呢基化的2-硝基吡咯天然产物的对映体。没有最初分配的Heronapyrrole C的手性中心,我们根据推定的生物合成途径提出了最可能的天然构型。合成的关键步骤是仿生聚环氧环化级联反应,以建立双THF部分。因此,从商业上可获得的起始原料以八步合成(-)-戊基吡咯C。