title: New sesquiterpene carbonimidic dichlorides and related compounds from the sponge Stylotella aurantium.
abstract: Five new sesquiterpenes (1-5) having a carbonimidic dichloride or an aldehyde function have been isolated, together with seven known related compounds (6-12), from the sponge Stylotella aurantium. The structures of the new compounds were elucidated from spectral data. The absolute stereochemistry of the previously reported reticulidin A (10) was determined. Four of the new compounds showed cytotoxicity with a range of IC(50) values of 0.1-1 microg/mL against several tumor cell lines.
authors.affiliation: Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Musman
authors.forename: J
authors.initials: J
authors.lastname: Tanaka
authors.forename: T
authors.initials: T
authors.lastname: Higa
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D002855:Chromatography, Thin Layer; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D013058:Mass Spectrometry; D011161:Porifera / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014407:Tumor Cells, Cultured
chemical_list: D000970:Antineoplastic Agents; D012717:Sesquiterpenes