title: Benzophenone O-glycosides from Hypericum elegans.
abstract: Elegaphenonoside, a new benzophenone O-rhamnoside, together with two known benzophenone O-glycosides, namely hypericophenonoside and neoannulatophenonoside, were isolated from the aerial parts of Hypericum elegans Stephan ex Willd. The structure of the new compound was established as 3',5',6-trihydroxy-4-methoxybenzophenone-2-O-alpha-L-rhamnopyranoside by means of chemical and physical evidence. In addition, the presence of kaempferol, quercetin, isoquercitrin, norathyriol, I-3,II-8-biapigenin, quercitrin, hyperoside and rutin were established in this plant.
authors.affiliation: Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Sofia, Sofia, Bulgaria. pnedialkov@gmail.com
authors.forename: Paraskev T
authors.initials: PT
authors.lastname: Nedialkov
authors.forename: Dimitrina
authors.initials: D
authors.lastname: Zheleva-Dimitrova
authors.forename: Ulrich
authors.initials: U
authors.lastname: Girreser
authors.forename: Gerassim M
authors.initials: GM
authors.lastname: Kitanov
mesh_terms: D001577:Benzophenones / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D020902:Hypericum / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure
chemical_list: D001577:Benzophenones; D006027:Glycosides