title: A flavone and an unusual 23-carbon terpenoid from Andrographis paniculata.
abstract: Phytochemical investigation of the roots and aerial parts of Andrographis paniculata Nees yielded a new flavone, 5-hydroxy-7,2',6'-trimethoxyflavone and an unusual 23-carbon terpenoid, 14-deoxy-15-isopropylidene-11,12-didehydroandrographolide together with five known flavonoids and four known diterpenoids. The structures of these compounds were determined on the basis of spectral and chemical studies.
authors.affiliation: Natural Products Division, Department of Chemistry, Sri Venkateswara University, Tirupati 517 502, India.
authors.forename: Muntha K
authors.initials: MK
authors.lastname: Reddy
authors.forename: Mopuru V B
authors.initials: MV
authors.lastname: Reddy
authors.forename: Duvvuru
authors.initials: D
authors.lastname: Gunasekar
authors.forename: Madugula M
authors.initials: MM
authors.lastname: Murthy
authors.forename: Cristelle
authors.initials: C
authors.lastname: Caux
authors.forename: Bernard
authors.initials: B
authors.lastname: Bodo
mesh_terms: D000475:Alkenes / Q000737:chemistry; D035685:Andrographis / Q000737:chemistry*; D002850:Chromatography, Gel; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018514:Plant Structures / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods; D013729:Terpenes / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D000475:Alkenes; D005419:Flavonoids; D013729:Terpenes; C013658:propylene