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  • Title: Dendrazawaynes A and B, antifungal polyacetylenes from Dendranthema zawadskii (Asteraceae).
    Author: Rahman MA, Cho SC, Song J, Mun HT, Moon SS.
    Journal: Planta Med; 2007 Aug; 73(10):1089-94. PubMed ID: 17691057.
    Abstract:
    Two new C(14) polyacetylenes dendrazawayne A(7) and dendrazawayne B (9) together with known C(13) polyacetylenes (2, 3), C(14) polyacetylenes (1, 4, and 8) and polyacetylene amides (5 and 6) were isolated from the roots of Dendranthema zawadskii. The structures of 7 and 9 were elucidated based on spectroscopic methods including 2D-NMR, HR-TOF-MS, IR, and UV. Compounds 1, 2, 3, 5, and 6 showed moderate activity against tumor cell lines (human small lung cancer cell line A549, melanoma SK-Mel-2, and mouse melanoma B16F1) with IC(50) values in the range of 7.4 - 30 microg/mL. Compounds 7 and 9, including other polyacetylenes, showed strong activity against the fungus Trichophyton (MIC: 5 - 10 microg/mL).
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