期刊
MOLECULES
卷 27, 期 24, 页码 -出版社
MDPI
DOI: 10.3390/molecules27248856
关键词
Eupatorium heterophyllum; Asteraceae; benzofuran oligomer; structure elucidation; Hengduan mountain
资金
- JSPS [16K18897, 25303010, 20K07102]
- NSFC
This study investigated the chemical constituents of two root samples of Eupatorium heterophyllum DC. collected in Yunnan Province, China. New benzofurans and derivatives were isolated, and their structures were determined. It is the first time that oligomeric benzofurans have been found in this plant, indicating the ongoing diversification of secondary metabolites in E. heterophyllum.
The chemical constituents of two root samples of Eupatorium heterophyllum DC. collected in Yunnan Province, China, were investigated. Five new oligomeric benzofurans (1-5), nine new benzofuran/dihydrobenzofuran derivatives, and a new thymol analog were isolated, and their structures were determined using extensive spectroscopic techniques, such as 1D and 2D NMR spectroscopy and DFT calculations of the CD spectra. Most of the new compounds, including oligomeric benzofurans (1-5), were obtained from only one of the root samples. Furthermore, this is the first example that produces oligomeric benzofurans in this plant. These results imply that diversification of secondary metabolites in E. heterophyllum is ongoing. Plausible biosynthetic pathways for 1-5 are also proposed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据