Two New Megastigmane Glycosides and a New Iridoid Glycoside from Gelsemium elegans |
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| Authors: | Qiu‐Ping Zhang Bin‐Feng Zhang Gui‐Xin Chou Zheng‐Tao Wang |
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| Institution: | 1. Department of Pharmacognosy, China Pharmaceutical University, Nanjing 211198, P.?R. China;2. The MOE Key Laboratory for Standardization of Chinese Medicines and SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang Hi‐Tech Park, Shanghai 201210, P.?R. China (phone: +86‐21‐51322507;3. fax: +86‐21‐51322519);4. Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, P.?R. China |
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| Abstract: | Two new megastigmane glycosides, eleganosides A and B ( 1 and 3 , resp.), and one new iridoid glycoside, gouwenoside A ( 4 ), together with two known compounds, foliasalacioside B1 ( 2 ) and loganin ( 5 ), were isolated from the aerial parts of Gelsemium elegans (Gardn. et Champ.) Benth. (Loganiaceae). Their structures were elucidated by spectroscopic methods including 1D‐ and 2D‐NMR techniques. The absolute configuration of 1 was determined by CD spectroscopy. |
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| Keywords: | Gelsemium elegans Megastigmane glycosides Eleganosides A and B Glycosides Iridoid glycosides Gouwenoside A |
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