Abstract
Six new sesquiterpenoids, namely nardosinanones J-N and nardoaristolone C, were isolated from the rhizomes and roots of Nardostachys chinensis Batal. Their structures were determined by interpretation of spectroscopic data (HR-ESI-MS, 1D and 2D NMR). A combination of X-ray crystal diffraction, ECD calculation, and Mosher ester methods was employed to determine the absolute configuration of the isolated compounds. Compounds 1–2, 4–6 were evaluated anti-inflammatory activities in LPS-stimulated RAW264.7 macrophages. The results showed that compound 5 obviously inhibited LPS-induced iNOS and COX-2 protein expression compared to single LPS stimulation, which indicated the potential effect to medicate anti-inflammatory.
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