化学
异核单量子相干光谱
部
圆二色性
根茎
立体化学
二维核磁共振波谱
传统医学
医学
作者
Jian Tang,Hui‐Liang Li,Yun‐Heng Shen,Hui‐Zi Jin,Shaomin Yan,Runhui Liu,Wensheng Zhang
标识
DOI:10.1002/hlca.200790078
摘要
Abstract Four new alkaloids, compounds 1 – 4 , based on the germine (=4,9‐epoxycevane‐3,4,7,14,15,16,20‐heptol; 5 ) framework, were isolated from the rhizomes of V. dahuricum , together with germine proper. The X‐ray crystal structure of germine ( 5 ) was solved, and all compounds were characterized by circular dichroism, 1D‐ and 2D‐NMR ( 1 H, 1 H‐COSY, DEPT, HSQC, HMBC), as well as HR‐MS analyses.
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