title: Stolonic acids A and B, new cytotoxic cyclic peroxides from an Indian Ocean ascidian Stolonica species.
abstract: Two new 3,6-epidioxy-7,10-tetrahydrofurano C(26) unsaturated fatty acids, stolonic acids A (1) and B (2), were isolated from a previously undescribed ascidian species, Stolonica sp. collected off the Maldive Islands in the Indian Ocean. The structures and relative stereochemistry of 1 and 2 were determined using conventional spectroscopic methods. Both compounds exhibited antiproliferative activity against selected human melanoma and ovarian tumor cell lines, with IC(50) values of approximately 0.05-0.1 microg/mL.
authors.affiliation: Laboratory of Drug Discovery Research and Development, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute-Frederick Cancer Research and Development Center, Maryland 21702-1201, USA.
authors.forename: M T
authors.initials: MT
authors.lastname: Davies-Coleman
authors.forename: K R
authors.initials: KR
authors.lastname: Gustafson
authors.forename: C L
authors.initials: CL
authors.lastname: Cantrell
authors.forename: J A
authors.initials: JA
authors.lastname: Beutler
authors.forename: L K
authors.initials: LK
authors.lastname: Pannell
authors.forename: M R
authors.initials: MR
authors.lastname: Boyd
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D004354:Drug Screening Assays, Antitumor; D005231:Fatty Acids, Unsaturated / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006801:Humans; D019156:Indian Ocean; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010545:Peroxides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D014407:Tumor Cells, Cultured; D014561:Urochordata / Q000737:chemistry*
chemical_list: D000970:Antineoplastic Agents; D005231:Fatty Acids, Unsaturated; D005663:Furans; D010545:Peroxides; C416565:stolonic acid A; C416566:stolonic acid B