title: A guaianolide alloside and other constituents from Picris kamtschatica.
abstract: From Picris kamtschatica two new guaianolide glycosides, including a beta-allopyranosyl analogue of ixerin F, were isolated, in addition to ten known sesquiterpene lactones and six phenolic compounds. This is the first time a sesquiterpene lactone alloside has been described from plants. The compounds were characterized based on mass, 1D and 2D NMR spectral data.
authors.affiliation: Department of Phytochemistry, Institute of Pharmacology, Polish Academy of Sciences, 12 Smetna Str, Pl-31-343, Kraków, Poland. kisielw@if-pan.krakow.pl
authors.forename: Wanda
authors.initials: W
authors.lastname: Kisiel
authors.forename: Klaudia
authors.initials: K
authors.lastname: Michalska
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D007783:Lactones / Q000737:chemistry* / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry* / Q000302:isolation & purification*; D018514:Plant Structures / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D007783:Lactones; D010636:Phenols; D012717:Sesquiterpenes