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A new anthraquinone from Morinda elliptica Ridl
Kiedparinya Loonjang1, David Duangjinda, Souwalak Phongpaichit
1a Department of Chemistry , Faculty of Science and Technology, Prince of Songkla University , Pattani 94000 , Thailand.
Abstract:
A new anthraquinone, morinquinone, together with 18 known anthraquinones were isolated from the stems of Morinda elliptica Ridl. Their structures were elucidated on the basis of spectroscopic data. They each showed weak inhibitory activity against a susceptible strain of Staphylococcus aureus and a methicillin-resistant S. aureus. Damnacanthal was effective against Microsporum gypseum (MIC 1 μg/mL). Lucidin was active against Entamoeba histolytica (MIC 31.25 μg/mL) and Giardia intestinalis (MIC 7.8 μg/mL).
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