Total Synthesis of the 7,10-Epimer of the Proposed Structure of Amphidinolide N, Part II: Synthesis of C17-C29 Subunit and Completion of the Synthesis
作者:Koji Ochiai、Sankar Kuppusamy、Yusuke Yasui、Kenji Harada、Nishant R. Gupta、Yohei Takahashi、Takaaki Kubota、Jun'ichi Kobayashi、Yujiro Hayashi
DOI:10.1002/chem.201504675
日期:2016.3.1
The total synthesis of 7,10‐epimer of the proposed structure of amphidinolide N was accomplished. The requisite chiral C17–C29 subunit was assembled stereoselectively via Keck allylation, Shi epoxidation, diastereoselective 1,3‐reduction, and a later oxidative synthesis of the THF framework. The C1–C13 and C17–C29 subunits were successfully coupled using a Enders RAMP “linchpin” as the C14–C16 three
完成了所提出的两性霉素N结构的7,10-受体的全合成。必需的手性C17–C29亚基通过Keck烯丙基化,Shi环氧化,非对映选择性1,3-还原和后来的THF骨架氧化合成进行立体选择性组装。使用Enders RAMP“ linchpin”作为C14-C16三碳单元成功地偶联了C1-C13和C17-C29亚基,从而控制了C14和C16的手性。在合成的最后阶段,通过Grieco-Nishizawa烯烃反应成功构建了不稳定的烯丙基环氧部分。