title: 7-Epicylindrospermopsin, a toxic minor metabolite of the cyanobacterium Aphanizomenon ovalisporum from lake Kinneret, Israel.
abstract: A toxic minor metabolite, 7-epicylindrospermopsin (1), was isolated from a culture of the cyanobacterium Aphanizomenon ovalisporum isolated from Lake Kinneret in Israel. Homonuclear and inverse-heteronuclear 2D NMR techniques, as well as HRMS and comparison of the NMR data with model compounds, enabled the structure determination of the new compound. Four polymethoxy-1-alkenes, 3-6, were isolated from the lipophilic extract of the cyanobacterium as well.
authors.affiliation: School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv 69978, Israel.
authors.forename: R
authors.initials: R
authors.lastname: Banker
authors.forename: B
authors.initials: B
authors.lastname: Teltsch
authors.forename: A
authors.initials: A
authors.lastname: Sukenik
authors.forename: S
authors.initials: S
authors.lastname: Carmeli
mesh_terms: D000470:Alkaloids; D001427:Bacterial Toxins; D000458:Cyanobacteria / Q000378:metabolism*; D000087522:Cyanobacteria Toxins; D015394:Molecular Structure; D013057:Spectrum Analysis; D014498:Uracil / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D000470:Alkaloids; D001427:Bacterial Toxins; D000087522:Cyanobacteria Toxins; C089595:cylindrospermopsin; D014498:Uracil