作者:Xiangshu Xiao、Shukun Li、Xuebin Yan、Xuejun Liu、Rui Xu、Donglu Bai
DOI:10.1246/cl.2005.906
日期:2005.7
A highly convergent and efficient route to sec-precursor 26 of macrolactin A has been developed. In the synthesis, Wittig and Horner–Emmons reactions were utilized to construct the conjugated dienes and control the right configurations of E,Z- and E,E-dienes. The segment 2 and 3 were prepared from the known compound 4 and 15 respectively. The coupling of segments 2 and 3 proceeded in the presence of NaHMDS. The analogues 7 and 32 were synthesized by the same strategy.
我们开发出了大内酯 A 的仲前体 26 的高度收敛和高效路线。在合成过程中,利用 Wittig 和 Horner-Emmons 反应构建共轭二烯,并控制 E,Z- 和 E,E- 二烯的正确构型。段 2 和段 3 分别由已知化合物 4 和 15 制备而成。段 2 和段 3 在 NaHMDS 存在下进行偶联。类似物 7 和 32 也是通过同样的方法合成的。