Journal
NATURAL PRODUCTS AND BIOPROSPECTING
Volume 2, Issue 2, Pages 70-75Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13659-012-0018-z
Keywords
caryophyllene sesquiterpenoid; cytosporinol; Cytospora sp
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Funding
- National Natural Science Foundation of China [30925039]
- Beijing Natural Science Foundation [5111003]
- Ministry of Science and Technology of China [2009CB522300, 2010ZX09401-403]
- Chinese Academy of Sciences [KSCX2-EW-G-6]
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Three new caryophyllene sesquiterpenoids, cytosporinols A-C (1-3), have been isolated from solid cultures of Cytospora sp. The structures of 1-3 were elucidated primarily by NMR spectroscopy, and 3 was further confirmed by X-ray crystallography. The absolute configurations of the C-11 secondary alcohol in 1 and the 6,8-diol moiety in 3 were deduced using the modified Mosher and Snatzke's method, respectively. Compounds 2 and 3 showed moderate cytotoxicity against HeLa cells.
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