title: A new acylated flavone glycoside from Colebrookea oppositifolia.
abstract: A new acylated flavone glycoside, echioidinin 2'-O-beta-D-(2''-O-acetyl)glucopyranoside (1) along with the three known flavonoids, 5,6,7,8,5'-pentamethoxy-3',4'-methylenedioxyflavone (2), 5,2',6'-trihydroxy-7-methoxyflavone (3), and kaempferol 7,4'-dimethyl ether 3-O-beta-D-glucopyranoside (4), were isolated from the roots of Colebrookea oppositifolia. The structure of compound 1 was elucidated by extensive spectral and chemical studies.
authors.affiliation: Natural Products Division, Department of Chemistry, Sri Venkateswara University, Tirupati, India.
authors.forename: Ramireddy Venkata Narahari
authors.initials: RV
authors.lastname: Reddy
authors.forename: Bandi Anil Kumar
authors.initials: BA
authors.lastname: Reddy
authors.forename: Duvvuru
authors.initials: D
authors.lastname: Gunasekar
mesh_terms: D044950:Flavanones / Q000737:chemistry / Q000302:isolation & purification*; D047309:Flavones; D005960:Glucosides; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D007194:India; D019686:Lamiaceae / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry
chemical_list: D044950:Flavanones; D047309:Flavones; D005960:Glucosides; D006027:Glycosides; C539686:echioidinin 2'-O-beta-D-(2''-O-acetyl)glucopyranoside