Further new rearranged lanostanoids from the seeds of Abies mariesii and A. firma |
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| Affiliation: | 1. State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China;2. Pharmaceutical Informatics Institute, Zhejiang University, Hangzhou 310058, PR China;1. Department of Chemistry, Laboratory of Natural Products and Organic Synthesis, Visva-Bharati (a Central University), Santiniketan-731 235, West Bengal, India;2. Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid 28040, Spain;3. Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, Madrid 28040, Spain |
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| Abstract: | In addition to reported 17,14-friedo lanostane type (I) of triterpene further triterpenes having new rearranged lanostane skeletons, 17,13-friedo lanostane (II) and 8(14→13R) abeo-17,13-friedo lanostane (III), have been isolated from the seed of Abiesmariesii. The skeletons I and II were also found to occur in A. firma. Their structures have been elucidated by spectral and X-ray diffraction analyses. |
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