title: A new 3-arylcoumarin from the roots of an Egyptian collection of Lotus polyphyllos.
abstract: Further investigation of different fractions from Lotus polyphyllos Clarke roots resulted in the isolation of the new 3-arylcoumarin derivative; 4',6'-dihydroxy-7, 2'-dimethoxy-3-arylcoumarin (5). In addition, the known compounds beta-sitosterol, 1-hexacosanol (1), n-tetracosyl p-coumarate (2), 4'-O-methylderrone (4), and quercetin (6) were identified. The structures were determined from spectroscopic data including 1D- and 2D-NMR experiments.
authors.affiliation: Faculty of Pharmacy, Department of Pharmacognosy, King Saud University, Riyadh 11451, Saudi Arabia. mpharm101@hotmail.com
authors.forename: Maged S
authors.initials: MS
authors.lastname: Abdel-Kader
authors.forename: Omer A
authors.initials: OA
authors.lastname: Basudan
authors.forename: Mehtab
authors.initials: M
authors.lastname: Parveen
authors.forename: Masouda E
authors.initials: ME
authors.lastname: Amer
mesh_terms: D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification*; D000070116:Lotus / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013056:Spectrophotometry, Ultraviolet
chemical_list: D003374:Coumarins