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Planta Med. 2011 Dec;77(18):2053-6. doi: 10.1055/s-0031-1280086. Epub 2011 Jul 28.

Cytotoxic and antibacterial flavonoids from dragon's blood of Dracaena cambodiana.

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Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, P. R. China.


Chemical studies on the constituents from the dragon's blood of Dracaena cambodiana led to the discovery of three new flavonoid derivatives (1- 3) and six known compounds (4- 9). The structures of the three new compounds were elucidated by NMR and MS spectroscopic analyses. All compounds were evaluated for their growth inhibitory activity against human cell lines K-562, SMMC-7721, and SGC-7901, as well as antibacterial activities against Staphylococcus aureus and methicillin-resistant Staphylococcus aureus (MRSA). As a result, compounds 1, 2, 5, 7, and 9 showed cytotoxicity against K-562, SMMC-7721, and SGC-7901 cell lines. All these compounds were observed to exhibit antibacterial activities against S. aureus, and compounds 1- 4, 6, 8, and 9 were observed to exhibit antibacterial activity against MRSA.

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