title: Apigenin di- and trirhamnoside from Asplenium normale in Malaysia.
abstract: Two new flavone rhamnosides, apigenin 7-O-alpha-L-rhamnopyranosyl-(1-->4)-O-alpha-L-rhamnopyranoside and apigenin 7-O-alpha-L-rhamnopyranosyl-(1-->4)-O-alpha-L-rhamnopyranoside-4'-O-alpha-L-rhamnopyranoside were isolated from the fronds of Asplenium normale D. Don, together with two known C-glycosylflavones, vicenin-2 and lucenin-2. The chemical structures of the isolated glycosides were established by UV, LC-MS, characterization of acid hydrolysates, and 1H and 13C NMR spectroscopy.
authors.affiliation: Department of Botany, National Museum of Nature and Science, 4-1-1 Amakubo, Tsukuba, Ibaraki 305-0005, Japan. iwashina@kahaku.go.jp
authors.forename: Tsukasa
authors.initials: T
authors.lastname: Iwashina
authors.forename: Sadamu
authors.initials: S
authors.lastname: Matsumoto
authors.forename: Junichi
authors.initials: J
authors.lastname: Kitajima
authors.forename: Takehisa
authors.initials: T
authors.lastname: Nakamura
authors.forename: Goro
authors.initials: G
authors.lastname: Kokubugata
authors.forename: Monica
authors.initials: M
authors.lastname: Suleiman
authors.forename: Idoris M
authors.initials: IM
authors.lastname: Said
mesh_terms: D047310:Apigenin / Q000302:isolation & purification*; D029624:Ferns / Q000737:chemistry*; D006027:Glycosides / Q000302:isolation & purification*; D008296:Malaysia; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry
chemical_list: D006027:Glycosides; D010936:Plant Extracts; C548390:apigenin 7-O-alpha-L-rhamnopyranosyl-(1-4)-O-alpha-L-rhamnopyranoside; C548389:apigenin 7-O-alpha-L-rhamnopyranosyl-(1-4)-O-alpha-L-rhamnopyranoside-4'-O-alpha-L-rhamnopyranoside; D047310:Apigenin