Total synthesis of stevastelin B is described. Evans asymmetric aldol methodology and Roush asymmetric allylation were used to construct four consecutive stereo-centers on the octadecanoic acid moiety of stevastelin B. Subsequent coupling with a dipeptide and macrolactamization gave stevastelin B. The flexibility of this route could allow the synthesis of many analogues for biological tests, which cannot be obtained from natural sources.
本文介绍了甜叶菊苷 B 的全合成。利用伊文思不对称醛醇法和鲁什不对称烯丙基化法在
十八烷酸分子上构建了四个连续的立体中心。