Ether-linked biflavonoids from Quintinia acutifolia.
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.
Ariyasena
Jyamani
J
Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand.
Baek
Seung-Hwa
SH
Perry
Nigel B
NB
Weavers
Rex T
RT
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*
D000900:Anti-Bacterial Agents; D000972:Antineoplastic Agents, Phytogenic; D044946:Biflavonoids