title: Flavonoids from the Japanese monotypic genus, Nipponanthemum.
abstract: Foliar flavonoids of Nipponanthemum, which is a monotypic genus and consists of only one Japanese endemic species, N. nipponicum, were isolated for the first time. Fifteen flavonoids, i.e. six glycosides, quercetin 3,7-di-O-glucoside, vicenin-2, quercetin 3-O-glucoside, luteolin 7-O-glucoside, kaempferol 3-O-glucoside and apigenin 7-O-glucoside, and nine aglycones, luteolin, nepetin, quercetin 3-methyl ether, axillarin, apigenin, hispidulin, chrysoeriol, jaceosidin and sudachitin were identified. Of these compounds, the flavonoid aglycones existed on the leaf surface.
authors.affiliation: Laboratory of Plant Chemotaxonomy, United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan. uehara@kahaku.go.jp
authors.forename: Ayumi
authors.initials: A
authors.lastname: Uehara
authors.forename: Tsukasa
authors.initials: T
authors.lastname: Iwashina
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry*; D015394:Molecular Structure
chemical_list: D005419:Flavonoids