title: Blumeaxanthene II, a novel xanthene from Blumea riparia DC.
abstract: A novel xanthene (1), blumeaxanthene II, was isolated from the aerial parts of Blumea riparia (Bl.) DC., a Chinese medicinal plant with hemostatic properties, and its structure was determined by extensive spectroscopic analyses. This compound is the first example of a halogenated xanthene from a natural plant, and a biosynthetic pathway was proposed. Blumeaxanthene II was also tested against Bel-7404 cells in vitro but was found to be only weakly cytotoxic.
authors: Department of Chemistry and Chemical Engineering, Guangxi University, Nanning, People's Republic of China.
authors: Li
authors: L
authors: Huang
authors: Ting
authors: T
authors: Lei
authors: Cuiwu
authors: C
authors: Lin
authors: Xiaocong
authors: X
authors: Kuang
authors: Haiyan
authors: H
authors: Chen
authors: Hong
authors: H
authors: Zhou
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D045744:Cell Line, Tumor; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification* / Q000627:therapeutic use; D006801:Humans; D008113:Liver Neoplasms / Q000188:drug therapy; D015394:Molecular Structure; D035261:Plant Components, Aerial; D014966:Xanthenes / Q000737:chemistry / Q000302:isolation & purification* / Q000627:therapeutic use
chemical_list: D004365:Drugs, Chinese Herbal; D014966:Xanthenes; C554249:blumeaxanthene II