Anti-inflammatory lignanamides from the roots of Solanum melongena L.

Four new lignanamides, melongenamides A–D (1–4), together with six known ones (5–10), were isolated from the roots of Solanum melongena L. Their structures were elucidated on the basis of 1D and 2D NMR experiments and by comparison of their spectroscopic and physical data with the literature values. Compounds 2–8 exhibited inhibitions of nitric oxide production in lipopolysaccharide-induced RAW 264.7 macrophages with IC50 values ranging from 16.2 to 58.5 μM.

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