title: Metabolites from fungi 15. New isocoumarins from an endophytic fungus isolated from the Canadian thistle Cirsium arvense.
abstract: One known (1) and five new polyketide metabolites (2-6) were isolated from the culture extract of an endophytic fungus, Mycelia sterila, from the Canadian thistle Cirsium arvense. Compounds 1-4 are members of the isocoumarin family, whereas metabolite 5 is a dihydrobenzofuran and 6 has an open chain structure. All compounds have an unusual methyl group at the aromatic ring that does not fit into the usual polyketide pattern.
authors.affiliation: Fachbereich Chemie und Chemietechnik, Universität Paderborn, Germany.
authors.forename: K
authors.initials: K
authors.lastname: Krohn
authors.forename: U
authors.initials: U
authors.lastname: Flörke
authors.forename: M S
authors.initials: MS
authors.lastname: Rao
authors.forename: K
authors.initials: K
authors.lastname: Steingröver
authors.forename: H J
authors.initials: HJ
authors.lastname: Aust
authors.forename: S
authors.initials: S
authors.lastname: Draeger
authors.forename: B
authors.initials: B
authors.lastname: Schulz
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D002855:Chromatography, Thin Layer; D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification*; D018360:Crystallography, X-Ray; D005658:Fungi / Q000737:chemistry*; D005858:Germany; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D013055:Spectrophotometry, Infrared
chemical_list: D003374:Coumarins