Secondary Metabolites from the Chinese Liverwort Cephaloziella kiaeri
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- 作者：Rui-Juan Li ; Rong-Xiu Zhu ; Yao-Yao Li ; Jin-Chuan Zhou ; Jiao-Zhen Zhang ; Song Wang ; Jian-Ping Ye ; Yue-Hu Wang ; Susan L. Morris-Natschke ; Kuo-Hsiung Lee ; Hong-Xiang Lou
- 刊名：Journal of Natural Products
- 出版年：2013
- 出版时间：September 27, 2013
- 年：2013
- 卷：76
- 期：9
- 页码：1700-1708
- 全文大小：412K
- 年卷期：v.76,no.9(September 27, 2013)
- ISSN：1520-6025
文摘
Sixteen new clerodane diterpenoids, cephaloziellins A鈥揚 (1鈥?b>16), and two known analogues (17 and 18) were isolated from an EtOH extract of the Chinese liverwort Cephaloziella kiaeri. The structures of the new compounds were elucidated from extensive spectroscopic data (IR, UV, HRESIMS, 1D NMR, and 2D NMR), and the structures of 5, 9, and 15 were confirmed by single-crystal X-ray diffraction analyses. The absolute configurations of all new compounds were established by comparing experimental and calculated electronic circular dichroism spectra.