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KMID : 0620720080140040227
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Natural Product Sciences
2008 Volume.14 No. 4 p.227 ~ p.232
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Antioxidant and antimicrobial constituents of Crucianella maritima L.
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Badr Jihan M.
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Abstract
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Phytochemical further investigation of the chloroform extract of the aerial parts of Crucianella maritima L. (Rubiaceae) growing in Egypt resulted in the isolation of a new anthraquinone; 3-formyl-1-hydroxy-2-methoxy anthraquinone (3) along with the four known compounds isolated for the first time from the genus Crucianella; alizarin-1-methyl ether (2), 1,4-dihydroxy-2-methoxy anthraquinone (5), 1, 3, 6-trihydroxy-2-methoxy anthraquinone (7) and the flavonol kaempferol (8), beside four known compounds previously isolated from the same plant. The structures of the isolated compounds were established based on different spectroscopic data including UV, IR, EIMS, 1D and 2D-NMR. Moreover, the antioxidant and antimicrobial activities of the isolated compounds were evaluated.
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KEYWORD
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Rubiaceae, Crucianella maritima L., anthraquinones, spectroscopic techniques, antioxidant, antimicrobial activity
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