title: Senobtusin, a novel alkaloid with amidine moiety from Senecio obtusatus Wall. ex DC.
abstract: Phytochemical investigation of Senecio obtusatus Wall. ex DC led to the isolation of a novel alkaloid, senobtusin (1). Compound 1 possesses an atypical amidine moiety, and the structure was determined on the basis of extensive NMR analysis and HR-ESI-MS technique. This is the first report of this class of natural products obtained from family Asteraceae, and the systematic importance was also discussed.
authors.affiliation: a College of Life Science and Technology , Beijing University of Chemical Technology , Beijing , China.
authors.forename: Shu-Min
authors.initials: SM
authors.lastname: Bai
authors.affiliation: a College of Life Science and Technology , Beijing University of Chemical Technology , Beijing , China.
authors.forename: Hong-Mei
authors.initials: HM
authors.lastname: Ren
authors.affiliation: a College of Life Science and Technology , Beijing University of Chemical Technology , Beijing , China.
authors.forename: Guo-Jun
authors.initials: GJ
authors.lastname: Zheng
authors.affiliation: a College of Life Science and Technology , Beijing University of Chemical Technology , Beijing , China.
authors.forename: Guang
authors.initials: G
authors.lastname: Chen
mesh_terms: D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D000578:Amidines / Q000737:chemistry; D002681:China; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D064209:Phytochemicals / Q000737:chemistry / Q000302:isolation & purification; D012674:Senecio / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D000578:Amidines; D064209:Phytochemicals
keywords: Senecio obtusatus Wall. ex DC; amidine; senobtusin