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 converted into the title compound via a Wittig reaction with the remaining C1–C10 segment and Boland reduction using Zn with TMSCl.

中文翻译：

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二十二碳六烯酸潜在生物活性13,19,20-三羟基衍生物的两种立体异构体的合成

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。