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Antimicrobial anthraquinones from Morinda angustifolia
Wei Xiang1, Qi-Shi Song, Hong-Jie Zhang
1Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, PR China. wxiang@uic.edu
Abstract:
Investigation on Morinda angustifolia resulted in the isolation of a new anthraquinone, 1,8-dihydroxy-2-methyl-3,7-dimethoxyanthraquinone (1), along with five known analogues, lucidin 3-O-beta-primeveroside (2), 1,3-dihydroxy-2-methylanthraquinone (3), lucidin- omega -ethyl ether (4), lucidin-omega-butyl ether (5) and damnacanthol (6). The new compound demonstrated significant antimicrobial activity against Bacillus subtilis, Escherichia coli, Micrococcus luteus, Sarcina lutea, Candida albicans and Saccharomyces sake.
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