title: Chemical constituents from the flower of Datura metel L.
abstract: Phytochemical investigation of the 50% ethanol eluate fraction of macroporous resin for the flower of Datura metel L. led to the isolation of a new compound named yangjinhualine A (1) and five known megastigmane sesquiterpenes through repeated silica gel and ODS column chromatography and semipreparative HPLC. The structures of these compounds were determined by spectroscopic methods, including 2D-NMR, ESI-MS, and HR-ESI-MS spectrometry as well as by comparison with published data. Five known megastigmane sesquiterpenes were also isolated from D. metel L. for the first time.
authors.affiliation: Heilongjiang University of Chinese Medicine, Harbin, 150040, People's Republic of China. hxkuang@hotmail.com
authors.forename: Hai-xue
authors.initials: HX
authors.lastname: Kuang
authors.forename: Bing-you
authors.initials: BY
authors.lastname: Yang
authors.forename: Yong-gang
authors.initials: YG
authors.lastname: Xia
authors.forename: Wei-sheng
authors.initials: WS
authors.lastname: Feng
mesh_terms: D032302:Datura / Q000737:chemistry*; D035264:Flowers / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010936:Plant Extracts / Q000032:analysis; D021241:Spectrometry, Mass, Electrospray Ionization; D013056:Spectrophotometry, Ultraviolet
chemical_list: D010936:Plant Extracts