Journal
CHEMISTRY & BIODIVERSITY
Volume 8, Issue 5, Pages 887-894Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cbdv.201000133
Keywords
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Funding
- Chinese National Natural Science Fund [30772640]
- Shandong Province [ZR2009CZ016]
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Three new cytochalasins Z(21)-Z(23) (1-3, resp.), together with five analogs, 4-8, were isolated from Spicaria elegans KLA03 by the OSMAC (one strain-many compounds) approach with adding L- and D-tryptophan during its cultivation. The structures of new cytochalasins were elucidated on the basis of comprehensive 1D- and 2D-NMR and HR-ESI-MS analyses. Cytochalasins Z(21) and Z(22) (1 and 2, resp.), and compound 5 showed cytotoxic activities against A-549 cell lines with IC50 values of 8.2, 20.0, and 3.1 mu M, respectively.
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