title: Ether-linked biflavonoids from Quintinia acutifolia.
abstract: The New Zealand tree Quintinia acutifolia has yielded four biflavonoids, the new 2,3,2'',3''-tetrahydroochnaflavone (3), and its 7,7''-di-O-methyl derivative (1). The rare 7-O-methyl-2,3,2'',3''-tetrahydroochnaflavone (2) and 2'',3''-dihydroochnaflavone (4), both previously identified only from members of the Ochnaceae, were also isolated. Structures were determined by spectroscopic methods. This is the first report of biflavonoids from the Grossulariaceae.
authors.affiliation: Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand.
authors.forename: Jyamani
authors.initials: J
authors.lastname: Ariyasena
authors.forename: Seung-Hwa
authors.initials: SH
authors.lastname: Baek
authors.forename: Nigel B
authors.initials: NB
authors.lastname: Perry
authors.forename: Rex T
authors.initials: RT
authors.lastname: Weavers
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D000972:Antineoplastic Agents, Phytogenic / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D001412:Bacillus subtilis / Q000187:drug effects; D044946:Biflavonoids / Q000737:chemistry / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid; D004354:Drug Screening Assays, Antitumor; D031964:Grossulariaceae / Q000737:chemistry*; D020128:Inhibitory Concentration 50; D007941:Leukemia P388; D051379:Mice; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D009520:New Zealand; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D000900:Anti-Bacterial Agents; D000972:Antineoplastic Agents, Phytogenic; D044946:Biflavonoids