New Guaipyridine Sesquiterpene Alkaloids from Artemisia rupestris L. |
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| Authors: | Zhen Su Han‐Kui Wu Fei He Usmanova Slukhan Haji Akber Aisa |
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| Affiliation: | 1. Key Laboratory of Chemistry of Plant Resources in Arid Regions, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, P.?R. China, (phone: +86‐991‐3835678;2. fax: +86‐991‐3835679);3. Graduate School of the Chinese Academy of Sciences, Beijing 100039, P.?R. China;4. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashken, Uzbekistan |
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| Abstract: | Three new guaipyridine sesquiterpene alkaloids, rupestine A, B, C ( 1 – 3 , resp.), and the new nor‐sesquiterpne alkaloid rupestine D ( 4 ) were obtained from the flowers of Artemisia rupestris L. Their structures were elucidated on the basis of sepectroscopic data and by comparison with those of the related compounds reported in the literature. In addition, the absolute configurations of 2 and 4 were determined by single‐crystal X‐ray diffraction analyses. |
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| Keywords: | Artemisia rupestris Alkaloids Guaipyridine sesquiterpene alkaloids Norsesquiterpene alkaloids Rupestines A – D |
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