Four New Nortriterpenoids from Phlomis umbrosa |
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| Authors: | Pu Liu Zhi Yao Hui‐Qiang Li Hong‐Quan Duan |
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| Institution: | 1. School of Pharmaceutical Sciences, Basic Medical Research Center of Tianjin, Tianjin Medical, University, Tianjin 300070, P.?R. China, (phone: +?86‐22‐23542838;2. fax: +?86‐22‐23542805);3. College of Pharmaceuticals and Biotechnology, Tianjin University, Tianjin 300072, P.?R. China;4. Department of Immunology, Tianjin Medical University, Tianjin 300070, P.?R. China |
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| Abstract: | Four new 28‐noroleanane‐derived spirocyclic triterpenoids, compounds 1 – 4 , were isolated from the rhizomes of Phlomis umbrosa. Their structures were elucidated on the basis of 1D‐ and 2D‐NMR analyses, in combination with high‐resolution MS experiments. |
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| Keywords: | Nortriterpenoids Phlomis umbrosa Triterpenoids 28‐Noroleanane |
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