期刊
TETRAHEDRON
卷 68, 期 1, 页码 244-249出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2011.10.054
关键词
Cytotoxic; Anti-inflammatory; Soft coral; Sinularia flexibilis
资金
- National Science Council of the Republic of China (NSC) [98-2113-M-110-011-MY3]
- Ministry of education [99C031702]
Seven new diterpenoids, namely, flexibilisolides C-G (1-5), flexibilisin C (6), and a novel 11,12-secoflexibillin (7), along with seven known compounds, 8-14, were isolated from the Dongsha Atoll soft coral Sinularia flexibilis. The structures of the new metabolites were elucidated by extensive spectroscopic analysis and comparison of the NMR data with those of known analogues. Compounds I, 8, and 11 were shown to exhibit moderate cytotoxic activity against HeLa and 916 cancer cell lines, and compound 10 was found to exhibit more potent cytotoxic activity against SK-Hep1 and B16 cancer cell lines. Moreover, compounds 1, 2, 8, 9, and 11-14 could significantly inhibit the accumulation of the pro-inflammatory iNOS protein and 1, 8, 11, and 14 could reduce the accumulation of COX-2 protein in LPS-stimulated RAW264.7 macrophage cells. (C) 2011 Elsevier Ltd. All rights reserved.
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