title: [Chemical constituents from roots of Ixeris chinensis].
abstract: Silica gel column chromatography and preparative HPLC were applied to isolate the chemical constituents from the roots of Ixeris chinensis. Fifteen compounds were isolated and their structures were elucidated by the physicochemical properties and spectral analysis as chinensioide G(1), chinensioide B(2), 10α-hydroxy-guaia-12,6-lactone-3-keton(3), chinensioide C(4), 10α-hydroxy-11βH-guaia-4(5) -ene-12,6-lactone (5), 3β, 10α-dihydroxy-11βH-guaia-11 (13)-ene-12,6-lactone (6), 3β, 10α-dihydroxy-4βH, 11βH-guaia-12,6-lactone(7), 3β, 10α-dihydroxy-guaia-4 (15), 11 (13) -diene-12, 6-lactone (8), caffeic acid (9), p-hydorxyphenylacetic acid(10), methyl p-hydroxyphenylacetate (11), ethyl p-hydroxyphenylacetate (12), sitosterol (13), daucosterol (14), and ixerin D(15). Compound 1 was new, and 6 and 7 were isolated from I. chinensis for the first time.
authors.forename: Shu-Jun
authors.initials: SJ
authors.lastname: Zhang
authors.forename: Dan
authors.initials: D
authors.lastname: Wang
authors.forename: Ce
authors.initials: C
authors.lastname: XUu
authors.forename: Jin-Lan
authors.initials: JL
authors.lastname: Wang
authors.forename: Ming
authors.initials: M
authors.lastname: Zhao
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry
chemical_list: D004365:Drugs, Chinese Herbal