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Natural Product Research
Formerly Natural Product Letters
Volume 38, 2024 - Issue 11
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Research Article

Two new anti-inflammatory compounds from the roots and rhizomes of Clematis terniflora var. manshurica (Rupr.) Ohwi

, , , , , & show all
Pages 1874-1881 | Received 21 Nov 2022, Accepted 17 Jun 2023, Published online: 03 Jul 2023
 

Abstract

Two new compounds named mandshurica A (1) and mandshurica B (2), together with four known lignans (36) were isolated from the roots and rhizomes of Clematis terniflora var. manshurica (Rupr.) Ohwi. The structures of the new compounds were elucidated by HR-ESI-MS, 1D and 2D NMR spectroscopy. Moreover, the anti-inflammatory activity of compounds 1 and 2 were evaluated against lipopolysaccharide-induced mouse macrophage RAW264.7 cells. Compounds 1 and 2 displayed significant inhibitory effect on NO production, and compound 2 exhibited obvious inhibition on the pro-inflammatory cytokines TNF-α. Both new compounds showed potential anti-inflammatory activity.

Graphical Abstract

Disclosure statement

The authors declare no conflict of interest.

Additional information

Funding

This work was supported by grants from Liaoning Revitalization Talents Program (XLYC1902116), Liaoning provincial science and technology projects (NO. 2022JH1/10800106).

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