| บทคัดย่อ |
An unusual, new anthracene natural product named filamentos A (1), two new anthraquinone derivatives named filamentos B (2) and C (3), together with sixteen known compounds (4–19), were isolated from the roots of the tree Prismatomeris filamentosa. Their structures were identified by analysis of mass and spectro- scopic data (IR, 1D and 2D NMR). Twelve metabolites (1–6, 9, 12–14, 16–17) showed moderate antibacterial activities against a wide range of Gram-positive and Gram-negative bacteria such as B. subtilis, B. cereus, S. aureus, E. coli, P. aeruginosa and S. sonnei. |
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