title: Flavonoids and andrographolides from Andrographis paniculata.
abstract: Two flavonoids, identified as 5,7,2',3'-tetramethoxyflavanone and 5-hydroxy-7,2',3'-trimethoxyflavone, as well as several other flavonoids, andrographolide diterpenoids, and polyphenols, were obtained from the phytochemical investigation of the whole plant of Andrographis paniculata, a well known medicinal plant. The structures of these compounds were established with the aid of spectroscopic methods, including analysis by 2D NMR spectroscopy.
authors.affiliation: Department of Applied Chemistry, Chaoyang University of Technology, 168 Gifeng E. Road, Wufeng, Taichung 413, Taiwan.
authors.forename: Y
authors.initials: Y
authors.lastname: Koteswara Rao
authors.forename: G
authors.initials: G
authors.lastname: Vimalamma
authors.forename: C Venkata
authors.initials: CV
authors.lastname: Rao
authors.forename: Yew-Min
authors.initials: YM
authors.lastname: Tzeng
mesh_terms: D035685:Andrographis / Q000737:chemistry / Q000145:classification*; D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification; D010936:Plant Extracts / Q000737:chemistry; D018514:Plant Structures / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry; D059808:Polyphenols; D013057:Spectrum Analysis
chemical_list: D004224:Diterpenes; D005419:Flavonoids; D010636:Phenols; D010936:Plant Extracts; D059808:Polyphenols