作者:Xiao-Tao Chen、Samit K. Bhattacharya、Bishan Zhou、Clare E. Gutteridge、Thomas R. R. Pettus、Samuel J. Danishefsky
DOI:10.1021/ja990215c
日期:1999.7.1
The total synthesis of the title compound (1), starting with (R)-(−)-α-phellandrene (6), has been accomplished. The synthesis rigorously proves the relative stereochemical relationship of the diterpenoid and carbohydrate domains of eleutherobin. Key reactions included a Nozaki−Kishi ring closure to produce a furanophane (see 37 → 38), a pyranose to furanose transposition (see 50 → 47), and a novel
以(R)-(-)-α-水芹烯(6)开始的标题化合物(1)的全合成已经完成。该合成严格地证明了五七甙的二萜和碳水化合物结构域的相对立体化学关系。关键反应包括 Nozaki-Kishi 环闭合以产生呋喃烷(参见 37 → 38)、吡喃糖至呋喃糖转座(参见 50 → 47)和用于连接两个域的新型氧碳糖苷化(参见 58 → 87)。