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Updated: Jan 28, 2026

Gold Nanoparticle Synthesis
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Concise Synthesis of Deoxylimonin.

Jiajing Bao1, Liangcai Yao1,2, Hailong Tian1

  • 1State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China.

Journal of the American Chemical Society
|January 26, 2026
PubMed
Summary

Researchers developed a concise, bioinspired synthesis for deoxylimonin, a key limonoid. This novel approach utilizes skeletal reorganization for efficient construction of complex terpenoid structures.

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Area of Science:

  • Organic Chemistry
  • Natural Product Synthesis
  • Bioorganic Chemistry

Background:

  • Limonoids are a significant class of terpenoids with diverse biological activities.
  • Deoxylimonin is a flagship member of the limonoid family.
  • Efficient synthesis of complex natural products like deoxylimonin remains a challenge.

Purpose of the Study:

  • To present a concise and bioinspired synthesis of deoxylimonin.
  • To demonstrate the utility of skeletal reorganization in natural product synthesis.
  • To establish a simplified route to complex terpenoids.

Main Methods:

  • Stereoconvergent radical polyene cyclization for tricyclic core assembly.
  • Oxime-directed Baldwin-Sanford oxidation for C7-H hydroxylation.
  • Titanium-mediated intermolecular aldol reaction for lactone moiety introduction.
  • Biomimetic transesterification/oxa-Michael addition cascade for fused motif installation.

Main Results:

  • Successful concise synthesis of deoxylimonin achieved.
  • Key structural features and stereocenters were efficiently installed.
  • The bioinspired skeletal reorganization strategy proved effective.

Conclusions:

  • The presented approach offers a simplified and powerful method for deoxylimonin synthesis.
  • Bioinspired skeletal reorganization is a valuable strategy for complex terpenoid synthesis.
  • This work paves the way for accessing other complex limonoids.