title: Ascosalipyrrolidinone A, an antimicrobial alkaloid, from the obligate marine fungus Ascochyta salicorniae.
abstract: From the green alga Ulva sp., the endophytic and obligate marine fungus Ascochyta salicorniae was isolated. A. salicorniae was mass cultivated and found to produce the unprecedented and structurally unusual tetramic acid containing metabolites ascosalipyrrolidinones A (1) and B (2). Additionally, the new natural product ascosalipyrone (3) and the known metabolites 4 and 5 were obtained. Ascosalipyrrolidinone A (1) has antiplasmodial activity toward Plasmodium falciparum strains K1 and NF 54, as well as showing antimicrobial activity and inhibiting tyrosine kinase p56lck.
authors.affiliation: Institute for Pharmaceutical Biology, Technical University of Braunschweig, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Osterhage
authors.forename: R
authors.initials: R
authors.lastname: Kaminsky
authors.forename: G M
authors.initials: GM
authors.lastname: König
authors.forename: A D
authors.initials: AD
authors.lastname: Wright
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D000962:Antimalarials / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D001203:Ascomycota / Q000737:chemistry*; D001419:Bacteria / Q000187:drug effects; D004791:Enzyme Inhibitors / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D010963:Plasmodium falciparum / Q000187:drug effects; D011505:Protein-Tyrosine Kinases / Q000037:antagonists & inhibitors; D011758:Pyrroles / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D013764:Tetrahydronaphthalenes / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D014344:Trypanocidal Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D000962:Antimalarials; D004791:Enzyme Inhibitors; D011758:Pyrroles; D013764:Tetrahydronaphthalenes; D014344:Trypanocidal Agents; C416061:ascosalipyrrolidinone A; D011505:Protein-Tyrosine Kinases