title: Sesquiterpenoids from roots of Taraxacum laevigatum and Taraxacum disseminatum.
abstract: Chromatographic separation of ethanolic root extracts of Taraxacum laevigatum and Taraxacum disseminatum afforded a total of eight germacrane- and eudesmane-type sesquiterpenoids. including new compounds, 1beta,3beta,6alpha-trihydroxy-4alpha( 15)-dihydrocostic acid methyl ester and its 1-O-beta-glucopyranoside. Their structures were established by spectroscopic analyses. In addition, the structure of 4alpha(15), 11beta(13)-tetrahydroridentin B-1-O-beta-glucopyranoside was elucidated by extensive NMR studies.
authors.affiliation: Department of Phytochemistry, Institute of Pharmacology, Polish Academy of Sciences, Krakow.
authors.forename: K
authors.initials: K
authors.lastname: Zielińiska
authors.forename: W
authors.initials: W
authors.lastname: Kisiel
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D013045:Species Specificity
chemical_list: D012717:Sesquiterpenes