title: Aquiledine and isoaquiledine, novel flavonoid alkaloids from Aquilegia ecalcarata.
abstract: Two new flavonoid alkaloids, aquiledine (1) and isoaquiledine (2), were isolated from the whole herb of Aquilegia ecalcarata, and their structures were determined by detailed spectral analysis. Three known flavonoids were also isolated from this extract-apigenin, apigenin-7,4'-dimethyl ether, and luteolin-and have not been reported previously from A. ecalcarata.
authors.affiliation: Institute of Medicinal Plant Development, Peking Union Medical College & Chinese Academy of Medical Sciences, 100094 Beijing, People's Republic of China.
authors.forename: S B
authors.initials: SB
authors.lastname: Chen
authors.forename: G Y
authors.initials: GY
authors.lastname: Gao
authors.forename: H W
authors.initials: HW
authors.lastname: Leung
authors.forename: H W
authors.initials: HW
authors.lastname: Yeung
authors.forename: J S
authors.initials: JS
authors.lastname: Yang
authors.forename: P G
authors.initials: PG
authors.lastname: Xiao
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D047310:Apigenin; D002681:China; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D047311:Luteolin; D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000470:Alkaloids; D005419:Flavonoids; C428172:aquiledine; C428173:isoaquiledine; D047310:Apigenin; D047311:Luteolin