title: Tartrolon D, a cytotoxic macrodiolide from the marine-derived actinomycete Streptomyces sp. MDG-04-17-069.
abstract: Exploration of marine-derived actinomycetes as a source of antitumor compounds has led to the isolation of a new member of the tartrolon series, tartrolon D (4). This new compound was obtained from Streptomyces sp. MDG-04-17-069 fermentation broths and displayed strong cytotoxic activity against three human tumor cell lines. Additionally, the known compound ikarugamycin (5) was also found in the culture broths of the same microorganism. The structure of this new tartrolon was established by a combination of spectroscopic techniques (1D and 2D NMR, HRMS, and UV) as well as by comparison with published data for similar compounds.
authors.affiliation: Medicinal Chemistry and Microbiology Departments, PharmaMar S.A., Pol. Ind. La Mina Norte, Avenida de los Reyes 1, 28770-Colmenar Viejo (Madrid), Spain.
authors.forename: Marta
authors.initials: M
authors.lastname: Pérez
authors.forename: Cristina
authors.initials: C
authors.lastname: Crespo
authors.forename: Carmen
authors.initials: C
authors.lastname: Schleissner
authors.forename: Pilar
authors.initials: P
authors.lastname: Rodríguez
authors.forename: Paz
authors.initials: P
authors.lastname: Zúñiga
authors.forename: Fernando
authors.initials: F
authors.lastname: Reyes
mesh_terms: D000970:Antineoplastic Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D007783:Lactones / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D008386:Marine Biology; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D013302:Streptomyces / Q000737:chemistry*
chemical_list: D000970:Antineoplastic Agents; D007783:Lactones; C546306:tartrolon D