WEI Meiyan, LI Shangde, YUAN Ningning, et al. Research on the Secondary Metabolites and Their Cytotoxic Activity of Mangrove Endophytic Fungus Nigrospora sp. from the South China Sea[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2012,51(2):59-62.
WEI Meiyan, LI Shangde, YUAN Ningning, et al. Research on the Secondary Metabolites and Their Cytotoxic Activity of Mangrove Endophytic Fungus Nigrospora sp. from the South China Sea[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2012,51(2):59-62.DOI:
sp.的次级代谢产物进行了首次研究。利用硅胶柱层析、制备薄层层析和重结晶等方法,从该菌培养液的乙酸乙酯相中分离得到3个聚酮类次级代谢产物,运用现代波谱技术鉴定其结构分别为Griseofulvin(1),Vermixocin B (2)和Tenellic acid A (1)。化合物1的立体结构还通过X射线单晶衍射进一步得以确定。体外细胞毒活性测试表明,化合物1对人口腔表皮样癌(鳞癌)细胞KB,人口腔鳞癌多药耐药细胞KBV200,和人肺腺癌细胞A549的细胞毒活性IC
50
分别为8.23
9.10和14.26 μmol/L。
Abstract
Research on the secondary metabolites of the mangrove endophytic fungus
Nigrospora
sp. from the South China Sea was reported. Three secondary metabolites were isolated from the ethyl acetate extract of the fermentation by silica gel column chromatography
preparative thin layer chromatography and recrystallgraphy. Their structures were identified by comprehensive spectroscopic methods as Griseofulvin (1)
Vermixocin B (2)
Tenellic acid A(3). The absolute configuration of compound 1 was further confirmed by singlecrystal X-ray analysis. The cytotoxic activity of compound 1in vitro was also evaluated
and compound 1 showed medium activity against KB,KBV200,and A549 cell lines with IC