整合生物学期刊网

应用天然产物 ›› 2021, Vol. 11 ›› Issue (1): 99-103.DOI: 10.1007/s13659-020-00276-8

• SHORT COMMUNICATION • 上一篇    下一篇

Asymmetric Total Synthesis of (+)-21-epi-Eburnamonine Via a Photocatalytic Radical Cascade Reaction

Yuan Huang, Fanglin Xue, Hengmao Liu, Fei Xue, Xiao-Yu Liu, Hao Song, Yong Qin   

  1. Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
  • 收稿日期:2020-09-25 修回日期:2020-10-18 出版日期:2021-02-24 发布日期:2021-03-11
  • 通讯作者: Hao Song, Yong Qin
  • 基金资助:
    We are grateful for the financial surpport from National Natural Science Foundation of China (21921002 and 21991114) and National Science and Technology Major Projects for “Major New Drugs Innovation and Development” (2018ZX09711003-015 and 2018ZX09711001-005-004).

Asymmetric Total Synthesis of (+)-21-epi-Eburnamonine Via a Photocatalytic Radical Cascade Reaction

Yuan Huang, Fanglin Xue, Hengmao Liu, Fei Xue, Xiao-Yu Liu, Hao Song, Yong Qin   

  1. Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, Sichuan, China
  • Received:2020-09-25 Revised:2020-10-18 Online:2021-02-24 Published:2021-03-11
  • Contact: Hao Song, Yong Qin
  • Supported by:
    We are grateful for the financial surpport from National Natural Science Foundation of China (21921002 and 21991114) and National Science and Technology Major Projects for “Major New Drugs Innovation and Development” (2018ZX09711003-015 and 2018ZX09711001-005-004).

摘要: An asymmetric total synthesis of (+)-21-epi-eburnamonine has been achieved. Key features of the synthesis include a visiblelight photocatalytic intra-/intramolecular radical cascade reaction to assemble the tetracyclic ABCD ring system, and a highly diastereoselective Johnson-Claisen rearrangement to establish the C20 all-carbon quaternary stereocenter.

关键词: Eburnamine-vincamine alkaloids, Photochemistry, Radical cascade reaction, Johnson-claisen rearrangement

Abstract: An asymmetric total synthesis of (+)-21-epi-eburnamonine has been achieved. Key features of the synthesis include a visiblelight photocatalytic intra-/intramolecular radical cascade reaction to assemble the tetracyclic ABCD ring system, and a highly diastereoselective Johnson-Claisen rearrangement to establish the C20 all-carbon quaternary stereocenter.

Key words: Eburnamine-vincamine alkaloids, Photochemistry, Radical cascade reaction, Johnson-claisen rearrangement