Synthesis of Two Stereoisomers of Potentially Bioactive 13,19,20-Trihydroxy Derivative of Docosahexaenoic Acid
作者:Narihito Ogawa、Shinsaku Sone、Song Hong、Yan Lu、Yuichi Kobayashi
DOI:10.1055/s-0040-1706415
日期:2020.10
The C16–C22 fragment with the acetylene terminus was constructed through the asymmetric dihydroxylation of the corresponding olefin, while the 15-iodo-olefin corresponding to the C11–C15 part was prepared via the asymmetric transfer hydrogenation of the corresponding acetylene ketone followed by hydrozirconation/iodination. Both pieces were joined by a Sonogashira coupling, and the product was further
具有乙炔末端的 C16-C22 片段是通过相应烯烃的不对称二羟基化构建的,而对应于 C11-C15 部分的 15-碘代烯烃是通过相应乙炔酮的不对称转移氢化然后氢化锆制备的。碘化。两部分通过 Sonogashira 偶联连接,产物通过 Wittig 反应与剩余的 C1-C10 片段和使用 Zn 和 TMSCl 的 Boland 还原进一步转化为标题化合物。