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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
1998-8-20
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pubmed:abstractText |
The EtOAc-soluble fraction of the MeOH extract of propolis afforded a new prenylated chromane derivative, 3-hydroxy-2, 2-dimethyl-8-prenylchromane-6-propenoic acid (1), along with 22 known compounds, 2-23. Of the known compounds, 4, 7, 12-19, and 22 were isolated for the first time from propolis, and the absolute configuration of 23 was established as (2S,3R). Investigation suggested that Baccharis spp. are a significant source of tropical Brazilian propolis, in addition to Clusia minor, Clusia major, and Araucaria heterophylla. All the compounds were tested for their cytotoxicity toward human HT-1080 fibrosarcoma and murine colon 26-L5 carcinoma cells. Among these compounds, 9 and 19-21 showed potent cytotoxicity, having ED50 values equal to or less than 10 microg/mL.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0163-3864
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
61
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
896-900
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9677271-Animals,
pubmed-meshheading:9677271-Antineoplastic Agents,
pubmed-meshheading:9677271-Brazil,
pubmed-meshheading:9677271-Drug Screening Assays, Antitumor,
pubmed-meshheading:9677271-Humans,
pubmed-meshheading:9677271-Magnetic Resonance Spectroscopy,
pubmed-meshheading:9677271-Mass Spectrometry,
pubmed-meshheading:9677271-Mice,
pubmed-meshheading:9677271-Propolis,
pubmed-meshheading:9677271-Spectrophotometry, Infrared,
pubmed-meshheading:9677271-Spectrophotometry, Ultraviolet,
pubmed-meshheading:9677271-Tumor Cells, Cultured
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pubmed:year |
1998
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pubmed:articleTitle |
Chemical constituents of Brazilian propolis and their cytotoxic activities.
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pubmed:affiliation |
Department of Natural Products Chemistry, Research Institute for Wakan-Yaku (Traditional Sino-Japanese Medicines), Toyama Medical and Pharmaceutical University, 2630-Sugitani, Toya.
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pubmed:publicationType |
Journal Article
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