ARTICLES

Asymmetric Total Synthesis and Structural Revision of Antiangiogenic Natural Product Penduliflaworosin

  • Xuge Si ,
  • Quan Cai
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  • Department of Chemistry, Fudan University, Shanghai 200433

Received date: 2024-09-20

  Revised date: 2024-10-31

  Online published: 2024-12-06

Supported by

National Natural Science Foundation of China(22071030); National Natural Science Foundation of China(22222104); Science and Technology Commission of Shanghai Municipality(22JC1401102)

Abstract

Penduliflaworosin is a diterpenoid natural product isolated from the medicinal plant Croton crassifolius, which demonstrates highly potent antiangiogenic activities. In this work, enantioselective total synthesis of penduliflaworosin and its C4 epimer has been realized for the first time, thus revising the erroneous structure of penduliflaworosin shown in previous literatures. In the synthesis, the main cis-decalin moiety bearing two quaternary stereogenic centers was efficiently constructed by tandem olefin migration/asymmetric inverse-electron-demand Diels-Alder reaction of 2-pyrone with polysubstituted 1,4- cyclohexadiene. From this intermediate, enantioselective synthesis of penduliflaworosin and its epimer was realized by subsequent several key steps, involving the 1,2-addition with 3-furanyl zinc reagent, oxidation, and olefin isomerization.

Cite this article

Xuge Si , Quan Cai . Asymmetric Total Synthesis and Structural Revision of Antiangiogenic Natural Product Penduliflaworosin[J]. Chinese Journal of Organic Chemistry, 2025 , 45(3) : 959 -968 . DOI: 10.6023/cjoc202409025

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