title: Four anthraquinones from Hedyotis diffusa.
abstract: A new anthraquinone has been isolated from the 95% EtOH extract of Hedyotis diffusa and characterized as 2-hydroxy-3-methoxy-6-methyl-9,10-anthraquinone (1) by extensive spectral analysis. The known compounds isolated for the first time from this plant have been identified as 2-hydroxy-3-methoxy-7-methyl-9,10-anthraquinone (2), 2-hydroxy-6-methylanthraquinone (3), and 1,3-dimethoxy-2-hydroxy-9,10-anthraquinone (4).
authors.affiliation: Department of Phytochemistry, Jiangsu Provincial Institute of Traditional Chinese Medicine, Nanjing, China.
authors.forename: Wei-Hua
authors.initials: WH
authors.lastname: Huang
authors.forename: Shun-Hui
authors.initials: SH
authors.lastname: Yu
authors.forename: You-Bin
authors.initials: YB
authors.lastname: Li
authors.forename: Jian-Qin
authors.initials: JQ
authors.lastname: Jiang
mesh_terms: D000880:Anthraquinones / Q000737:chemistry*; D032064:Hedyotis / Q000737:chemistry*; D015394:Molecular Structure
chemical_list: D000880:Anthraquinones