Asymmetric Synthesis of the C1-C13 Fragment of the Marine Metabolite Bistramide K
作者:Claude Bauder
DOI:10.1002/ejoc.201000881
日期:2010.11
synthetic study on the construction of the C1―C13 fragment of bistramideK is described. This unit differs from other members of the bistramide family, which are equipped with a pyran structure at C6―C11. In bistramideK, the linear C1― C13 portion contains three stereogenic centers as well as two supplementary (E)-olefin positions. The key step in the synthesis was the elaboration of the (E)-olefin C6―C7
描述了双链酰胺 K C1-C13 片段构建的合成研究。该单元与双链酰胺家族的其他成员不同,后者在 C6-C11 处具有吡喃结构。在双链酰胺 K 中,线性 C1-C13 部分包含三个立体中心以及两个补充的 (E)-烯烃位置。该合成的关键步骤是通过醛 4 和苯并噻唑砜 15 之间的 Julia-Kocienski 反应制备 (E)-烯烃 C6-C7。