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New bioactive chalcones in propolis from El Salvador
M Popova1, V Bankova, S Spassov
1Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia.
Zeitschrift Fur Naturforschung. C, Journal of Biosciences
|September 4, 2001
Abstract:
2',3'-Dihydroxy-4,4'-dimethoxychalcone (1) and 2',3',4-trihydroxy-4'-methoxy-chalcone, two new chalcones, were isolated from propolis from El Salvador. The compounds showed significant antibacterial and antifungal activity and moderate toxicity to Artemia salina nauplii.