期刊
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
卷 83, 期 5, 页码 539-545出版社
CHEMICAL SOC JAPAN
DOI: 10.1246/bcsj.20090306
关键词
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资金
- NMMBA [981001101]
- APORC, NSYSU [96C031702]
- NSTPBP, National Science Council, Taiwan [NSC 98-2323-B-291-001, 98-2320-B-291-001-MY3]
Chemical investigations on the cultured octocoral Briareum excavatum have led to the isolation of five new 8,17-epoxybriarane diterpenoids, excavatoids G-K (1-5). The structures of briaranes 1-5 were determined on the basis of spectroscopic methods and the structure of 1 was further confirmed by a single-crystal X-ray diffraction analysis. Cytotoxicity of these metabolites toward various tumor cell lines is described. Excavatoid I (3) was found to show mild inhibitory effects on elastase release and superoxide anion generation by human neutrophils.
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