作者:Anita Reiss、Martin E. Maier
DOI:10.1021/acs.orglett.6b01355
日期:2016.7.1
The macrocyclic core (35) of the marine natural product leiodermatolide (1) was synthesized from two key fragments, vinyl iodide 23 (C1–C11 part) and vinyl stannane 31 (C12–C18 part). A Stille coupling led to conjugated Z,Z-diene 32. The derived seco acid 34 was cyclized using a Yamaguchi macrolactonization. Key steps in the assembly of vinyl iodide 23 were a Paterson aldol reaction, and a Kumada coupling
海洋天然产物甲基皮肤内酯(1)的大环核心(35)是由两个关键片段合成的:碘化乙烯23(C1-C11部分)和乙烯基锡烷31(C12-C18部分)。斯蒂勒耦合导致共轭Z,Z-二烯32。使用山口宏观内酯化法将衍生的癸二酸34环化。碘化乙烯23组装的关键步骤是Paterson aldol反应,以及在Triflate衍生物上形成K4-C5三取代双键的Kumada偶联。片段31中的两个立体中心由马歇尔-塔玛鲁反应建立。最长的线性序列包括20个步骤。