Chemistry and Biological Activity of Anthraquinones from Morinda Elliptica (Rubiaceae)

TL;DRAbstract

Morinda ellipfica or locally known as "mengkudu kecil" is a medicinal plant commonly used by the Malays i n Peninsular Malaysia. The plant parts are used in various ways to treat many health problems and ailments. Literature search did not reveal any reports on its chemical constituents or biological activity. So, it is believed tl1at this is the first study on the chemical constituents and biological activity of Morinda ellipfica. Phytochemical studies on roots of this plant have resulted in the isolation of a new anthraquinone, 2-formyl-1-hydroxyanthraquinone, and ten known anthraquinones, 1-hydroxy-2-methylanthraquinone, nordamnacanthal, damnacanthal, lucidin-w-methylether, rubiadin, soranjidiol, morindone, rubiadin-1-methylether, morindone-5-methyl ether and a lizarin-1-methylether. The structures of the anthraquinones were established based on spectral studies using ultravioletvisible spectroscopy, infrared spectroscopy, one and two dimensional nuclear magnetic resonance spectra,

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