title: Biologically active polyketide metabolites from an undetermined fungicolous hyphomycete resembling Cladosporium.
abstract: Eight new polyketide-derived metabolites [cladoacetals A and B (1 and 2), 3-(2-formyl-3-hydroxyphenyl)propionic acid (3), 3-deoxyisoochracinic acid (4), isoochracinol (5), 7-hydroxy-3-(2,3-dihydroxybutyl)-1(3H)-isobenzofuranone (6), (+)-cyclosordariolone (10), and altersolanol J (11)] and six known metabolites [two isomeric 1-(1,3-dihydro-4-hydroxy-1-isobenzofuranyl)butan-2,3-diols (7a/b), 7-hydroxy-1(3H)-isobenzofuranone (8), isoochracinic acid (9), altersolanol A (12), and macrosporin (13)] have been isolated from solid-substrate fermentation cultures of an undetermined fungicolous isolate (NRRL 29097) that resembles Cladosporium sp. All structures were assigned primarily by analysis of 1D and/or 2D NMR data. Five of the compounds showed antibacterial activity.
authors.affiliation: Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, USA.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Höller
authors.forename: James B
authors.initials: JB
authors.lastname: Gloer
authors.forename: Donald T
authors.initials: DT
authors.lastname: Wicklow
mesh_terms: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D001231:Aspergillus flavus / Q000187:drug effects; D001412:Bacillus subtilis / Q000187:drug effects; D002176:Candida albicans / Q000187:drug effects; D005670:Fusarium / Q000187:drug effects; D006868:Hydrolysis; D008826:Microbial Sensitivity Tests; D003904:Mitosporic Fungi / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D021241:Spectrometry, Mass, Electrospray Ionization; D013211:Staphylococcus aureus / Q000187:drug effects; D013237:Stereoisomerism
chemical_list: D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D011084:Polycyclic Aromatic Hydrocarbons