title: Tetracenoquinocin and 5-iminoaranciamycin from a sponge-derived Streptomyces sp. Sp080513GE-26.
abstract: Two new anthracyclines, tetracenoquinocin (1) and 5-iminoaranciamycin (2), together with the known compounds aranciamycin (3) and antibiotic SM 173B were isolated from the culture of Streptomyces sp. Sp080513GE-26 associated with a marine sponge, Haliclona sp. The structures of 1 and 2 were established on the basis of extensive NMR and MS analyses along with (13)C-labeling experiments. The compounds 1-3 were evaluated for cytotoxicity against two cancer cell lines.
authors.affiliation: Biomedicinal Information Research Center (BIRC), Japan Biological Informatics Consortium (JBIC), 2-4-7 Aomi, Koto-ku, Tokyo 135-0064, Japan.
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Motohashi
authors.forename: Motoki
authors.initials: M
authors.lastname: Takagi
authors.forename: Kazuo
authors.initials: K
authors.lastname: Shin-Ya
mesh_terms: D000818:Animals; D018943:Anthracyclines / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D004354:Drug Screening Assays, Antitumor; D047129:Haliclona / Q000382:microbiology*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D013302:Streptomyces / Q000737:chemistry*
chemical_list: C549730:5-iminoaranciamycin; D018943:Anthracyclines; C549729:tetracenoquinocin