title: Chalcone and flavonol glycosides from Asarum canadense (Aristolochiaceae).
abstract: Two chalcone glycosides were isolated, together with seven known flavonol glycosides, from the leaves of Asarum canadense. The structures of the chalcone glycosides were established as chalcononaringenin 2',4'-di-O-glucoside and chalcononaringenin 2'-O-glucoside-4'-O-gentiobioside by chemical, UV, FAB MS, 1H and 13C NMR evidence.
authors.affiliation: Tsukuba Botanical Garden, National Science Museum, Ibaraki, Japan. iwashina@kahaku.go.jp
authors.forename: T
authors.initials: T
authors.lastname: Iwashina
authors.forename: J
authors.initials: J
authors.lastname: Kitajima
mesh_terms: D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D013058:Mass Spectrometry; D008968:Molecular Conformation; D013056:Spectrophotometry, Ultraviolet
chemical_list: D005419:Flavonoids; C420349:chalcononaringenin 2',4'-di-O-glucoside; C420352:chalcononaringenin 2'-O-glucoside-4'-O-gentiobioside