title: A New Geranylated Chalcone from Andrographis lobelioides.
abstract: A new O-geranylated chalcone, 2'-hydroxy-2-methoxy-4'-O-[(E)-3,7-dimethyl-2,6-octadienyl] chalcone (1), together with three known flavones, 5-hydroxy-7,2'-dimethoxyflavone (2), skullcapflavone I (3) and echioidin (4), were isolated from the leaves of Andrographis lobelioides. The structure of 1 and the known compounds (2-4) were achieved by extensive 1D and 2D NMR spectral and chemical studies.
authors.forename: Manne
authors.initials: M
authors.lastname: Sumalatha
authors.forename: Aluru
authors.initials: A
authors.lastname: Rammohan
authors.forename: Duvvuru
authors.initials: D
authors.lastname: Gunasekar
authors.forename: Alexandre
authors.initials: A
authors.lastname: Deville
authors.forename: Bernard
authors.initials: B
authors.lastname: Bodo
mesh_terms: D035685:Andrographis / Q000737:chemistry*; D047188:Chalcones / Q000737:chemistry*; D047309:Flavones / Q000737:chemistry; D015394:Molecular Structure
chemical_list: C000606895:2'-hydroxy-2-methoxy-4'-O-((E)-3,7-dimethyl-2,6-octadienyl)chalcone; D047188:Chalcones; D047309:Flavones