title: Bilosespens A and B: two novel cytotoxic sesterpenes from the marine sponge Dysidea cinerea.
abstract: [formula: see text] Two novel sesterpenes, bilosespens A and B (1 and 2) were isolated from the Red Sea sponge Dysidea cinerea collected in the Dahlak archipelago, Eritrea. The structure of the mixture of the two inseparable compounds was established by spectroscopic analysis, mainly by 1D and 2D NMR measurements. The mixture of bilosespens A and B is cytotoxic to a few human cancer cells.
authors.affiliation: School of Chemistry, Tel-Aviv University, Ramat Aviv, Israel.
authors.forename: A
authors.initials: A
authors.lastname: Rudi
authors.forename: T
authors.initials: T
authors.lastname: Yosief
authors.forename: M
authors.initials: M
authors.lastname: Schleyer
authors.forename: Y
authors.initials: Y
authors.lastname: Kashman
mesh_terms: D000818:Animals; D019017:Eritrea; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D011161:Porifera / Q000737:chemistry*; D013729:Terpenes / Q000737:chemistry* / Q000302:isolation & purification; D014407:Tumor Cells, Cultured
chemical_list: D013729:Terpenes; C410133:bilosespen A; C410134:bilosespen B