Journal
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
Volume 76, Issue 5, Pages 1038-1040Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.120021
Keywords
propolis; The Solomon Islands; prenylflavonoid; solophenol A; radical-scavenging activity
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Funding
- Grants-in-Aid for Scientific Research [23580180] Funding Source: KAKEN
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The new prenylflavonoid, solophenol A (1), together with three known compounds, bonannione A (2), sophoraflavanone A (3) and (2S)-5,7-dihydroxy-4'-methoxy-8-prenylflavanone (4), were isolated from propolis collected from Malaita Island in The Solomon Islands. The structure of each compound was determined by spectroscopic methods, including mass spectrometry and 2D NMR. Compound 1 exhibited potent 2,2-diphenyl-1-picrylhydrazyl radical-scavenging activity.
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