作者:Sreenivas Banne、D. Prabhakar Reddy、Wenxi Li、Chenhui Wang、Jian Guo、Yun He
DOI:10.1021/acs.orglett.7b02511
日期:2017.9.15
the first total synthesis of dictyodendrins G and synthesis of dictyodendrin F, H and I in 11 steps. The synthesis features consecutive functionalization of the core aminoquinone by palladium-mediated Suzuki–Miyaura coupling reaction, 1,4-addition, acylation and base mediated formation of a pyrrolinone, and the formation of carbazolequinone moiety through a formal [3 + 2] cycloaddition using arynes generated
已开发出一种统一的模块化合成策略,该方法可用于11个步骤中的首个总木犀草素G的全合成以及dictyodendendrin F,H和I的合成。合成的特征是通过钯介导的Suzuki-Miyaura偶联反应,1,4-加成,酰化和吡咯烷酮的碱介导形成,以及通过正式的[3 + 2]环加成形成咔唑醌部分而连续地对核心氨基醌进行功能化原位生成的芳烃。还使用该策略合成了几种双齿豆蔻苷类似物。