| 论文题目: | a-Pyrones and Pyranes from the Plant Pathogenic Fungus Pestalotiopsis scirpina |
|---|---|
| 作者: | Li, J; Wu, XF; Ding, G; Feng, Y; Jiang, XJ; Guo, LD; Che, YS |
| 联系作者: | Che, YS |
| 刊物名称: | EUROPEAN JOURNAL OF ORGANIC CHEMISTRY |
| 期: | 12 |
| 卷: | |
| 页: | 2445-2452 |
| 年份: | 2012 |
| 影响因子: | 3.329 |
| 论文下载: | |
| 摘要: | Three new a-pyrones, scirpyrones AC (13), and four new pyranes, scirpyranes AD (47), were isolated from solid cultures of the plant pathogen Pestalotiopsis scirpina. Their structures were elucidated primarily by NMR experiments. The absolute configurations of C-7 and C-2' in 1, C-7 in 2, and C-6 and C-7 in 3 were deduced on the basis of circular dichroism (CD) data, whereas those of the secondary alcohols in 47 were determined by a modification of Mosher's method. Compound 1 is the first described 6-(5-oxotetrahydrofuran-2-yl)-2H-pyran-2-one. Compounds 46 showed significant cytotoxicity towards MCF-7 cells. |
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