Hemsleyaconitines F and G,Two Novel C19‐Diterpenoid Alkaloids Possessing a Unique Skeleton from Aconitum hemsleyanum |
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| Authors: | Yong Shen Ai‐Xue Zuo Zhi‐Yong Jiang Xue‐Mei Zhang Hong‐Ling Wang Ji‐Jun Chen |
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| Institution: | 1. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, P.?R. China, (phone: +86‐871‐5223265;2. fax: +86‐871‐5223265);3. Graduate University of the Chinese Academy of Sciences, Beijing 100039, P.?R. China |
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| Abstract: | Hemsleyaconitines F and G ( 1 and 2 , resp.) were isolated from the EtOH extract of Aconitum hemsleyanum. Their structures were elucidated by extensive analyses of the IR, 1D‐ and 2D‐NMR, and MS data. The two C19‐diterpenoid alkaloids 1 and 2 possess a novel skeleton, featuring a five‐membered D‐ring between C(9), C(13), C(14), C(15), and C(16), which is quite different from the previously isolated six‐membered D‐ring analogs. |
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| Keywords: | Aconitum hemsleyanum Hemsleyaconitines F and G Diterpenoid alkaloids Alkaloids |
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