Abstract
Two new lindenane-type sesquiterpenoid dimers, chlotrichenes C and D (1 and 2) together with five known lindenane-type sesquiterpenoid dimers (3–7) were isolated from the roots of Chloranthus holostegius var. trichoneurus, a famous natural medicine named as “Sikuaiwa” for subduing swellings and relieving pain. The structures including absolute configuration were elucidated by their 1D and 2D NMR, HRESIMS, and ECD data. Compounds 1 and 2 were classical [4 + 2] lindenane-type sesquiterpenoid dimers that differed from known analogs in oxidation profile, side chain profile, and double bond position. The new isolates and compound 3 exhibited significant inhibitory activity on IL-1β production (IC50: 1–15 μM) in LPS-induced THP-1 cells and other compounds exhibited inhibitory activity on NO production in LPS-induced RAW 264.7 cells (IC50: 24–33 μM).
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Acknowledgements
The work was supported by the National Natural Science Foundation of China (32070389), and the “Double First-Class” University project of China Pharmaceutical University (CPU2022QZ29).
Funding
The work was supported by the National Natural Science Foundation of China (32070389), and the “Double First-Class” University project of China Pharmaceutical University (CPU2022QZ29).
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XW: Biological activities assessment; drafting and revising of the article. ZZ: Isolation and identification of the compounds; drafting of the article. JC: Isolation and identification of the compounds. AH, DZ, HJ: Refinement of the manuscript. YL, JL: Funding acquisition; Project administration; Writing—review & editing.
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Wang, X., Zan, Z., Chi, J. et al. Anti-inflammatory lindenane sesquiterpenoid dimers from the roots of Chloranthus holostegius var. trichoneurus. J Nat Med (2024). https://doi.org/10.1007/s11418-024-01817-y
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DOI: https://doi.org/10.1007/s11418-024-01817-y