Abstract
Two new compounds named mandshurica A (1) and mandshurica B (2), together with four known lignans (3–6) 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.
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