作者:Jongkook Lee、Jiyong Hong
DOI:10.1021/jo049351c
日期:2004.9.1
The first total synthesis of (−)-presphaerene (1) was achieved from (R)-glyceraldehyde 9 in 19 steps, demonstrating the novel “folding and allylic strain-controlled” intramolecular ester enolate SN2‘ alkylation strategy could be extended to the stereoselective synthesis of cyclopentanoid natural products. The present study also established the relative and absolute stereochemistry of 1, and the absolute
(-)-presphaerene(1)的第一个全合成是通过(R)-甘油醛9分19个步骤完成的,这表明新颖的“折叠和烯丙基应变控制的”分子内酯烯酸酯S N 2'烷基化策略可以扩展到环戊烷天然产物的立体选择性合成。本研究还建立的相对和绝对立体化学1,并从红藻共现sphaeroanes的绝对结构Sphaerococcus coronopifolius。