Journal
FITOTERAPIA
Volume 81, Issue 6, Pages 509-514Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fitote.2010.01.007
Keywords
Propolis; Prenylated stilbenes; Arylnaphtalene lignans; Macaranga schweinfurthii
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From propolis samples from Kenya, two new arylnaphtalene lignans were isolated, tetrahydrojusticidin B 1 and 6-methoxydiphyllin 2, along with four known phenolic compounds 5-8, found for the first time in propolis. The structures of the compounds were elucidated based on their spectral properties. The geranylstilbenes 7 and 8 demonstrated antibacterial activity against S. aureus, and the geranylflavon macarangin 6 possessed antiradical activity against DPPH radicals. (C) 2010 Elsevier B.V. All rights reserved.
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