Total Synthesis and Cytotoxicity of Haterumalides NA and B and Their Artificial Analogues
作者:Mitsuru Ueda、Masashi Yamaura、Yoichi Ikeda、Yuta Suzuki、Kensaku Yoshizato、Ichiro Hayakawa、Hideo Kigoshi
DOI:10.1021/jo802806z
日期:2009.5.1
first-generation approach for ent-haterumalide NA methyl ester, this second-generation synthesis yielded much more of the key intermediate. This synthesis established the relative stereochemistry of haterumalide B. Furthermore, the structure−cytotoxicity relationships of haterumalides were investigated. The combination of macrolide and side chain parts proved to be important to the cytotoxicity.
通过使用B-烷基铃木-宫浦偶联和Nozaki-Hiyama-Kishi偶联作为关键步骤,实现了有效的细胞毒性海洋大环内酯类-香樟内酯NA和B的总合成。与我们的第一代方法-对苯二酚内酯NA甲酯相比,该第二代合成方法产生了更多的关键中间体。这种合成建立了贝雷帽内酯B的相对立体化学。此外,研究了贝帽熊内酯的结构-细胞毒性关系。大环内酯和侧链部分的组合被证明对细胞毒性很重要。