Synthesis of Resolvin D6 and the Silyl Ether of the Resolvin E2 Methyl Ester via trans-Enynyl Alcohols
作者:Masao Morita、Shuhei Tanabe、Tomoya Arai、Yuichi Kobayashi
DOI:10.1055/s-0037-1611826
日期:2019.7
catalysis, and the resulting acetylene was reduced with Zn(Cu/Ag) to afford the TBS ether of RvD6 methyl ester. Desilylation with TBAF yielded the γ-lactone of RvD6, which was hydrolyzed to RvD6. The total yield of RvD6 was 1.9% in 19 steps from (3-trimethylsilyl)propargyl alcohol. The TBS ether of RvE2 methyl ester was also synthesized.
通过 TMS 取代的反式环氧醇与 TMS 乙炔化物的 Hudrlik-Peterson 反应和随后的 TMS 脱甲硅烷基化反应制备了两种反式烯醇中间体,对应于 Resolvin D6 (RvD6) 的 C1-C8 和 C13-C22 部分。这些中间体在铜催化下与 1,4-二卤代-2-丁炔衍生物偶联,所得乙炔用 Zn(Cu/Ag) 还原,得到 RvD6 甲酯的 TBS 醚。用 TBAF 进行脱甲硅烷基化产生 RvD6 的 γ-内酯,其水解为 RvD6。来自(3-三甲基甲硅烷基)炔丙醇的RvD6在19步中的总产率为1.9%。还合成了 RvE2 甲酯的 TBS 醚。