title: [Anthraquinones isolated from Morinda officinalis and Damnacanthus indicus].
abstract: From chloroform extract of the root of Morinda officinalis, eight anthraquinones were isolated whose structures were deduced to be rubiadin (I), rubiadin-1-methyl ether (II), 1-hydroxyanthraquinone (III), 1-hydroxy-2-methylanthraquinone (IV), 1,6-dihydroxy-2,4-dimethoxyanthraquinone (V), 1,6-dihydroxy-2-methoxyanthraquinone (VI), 1-hydroxy-2-methoxyanthraquinone (VII) and physcion (VIII). Except for compound I and compound II, the other compounds, 1-hydroxy-2-hydroxymethylanthraquinone (IX), 1,3-dihydroxy-2-methoxy-anthraquinone (X), 1,4-dihydroxy-2-methylanthraquinone (XI), 1-methoxy-2-hydroxyanthraquinone (XII) and 1,4-dimethoxy-2-hydroxyanthraquinone (XIII), were isolated from chloroform extract of root of Damnacanthus indicus. Compound V, VI and XIII are new compounds.
authors.affiliation: Department of Phytochemistry, China Pharmaceutical University, Nanjing.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Yang
authors.forename: H Y
authors.initials: HY
authors.lastname: Shu
authors.forename: Z D
authors.initials: ZD
authors.lastname: Min
mesh_terms: D000880:Anthraquinones / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure
chemical_list: D000880:Anthraquinones; D004365:Drugs, Chinese Herbal; C077858:1,4-dimethoxy-2-hydroxyanthraquinone; C077857:1,6-dihydroxy-2-methoxyanthraquinone; C077856:1,6-dihydroxy-2,4-dimethoxyanthraquinone