Clerodane-type diterpenoids from Nannoglottis ravida |
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| Authors: | Qin Hai-Lin Li Zhi-Hong |
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| Institution: | Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China. qinhailin@imm.ac.cn |
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| Abstract: | Chemical investigation of the roots of Nannoglottis ravida resulted in the characterization of two 5alpha,10alpha-cis-clerodane-type diterpenoides, ravidin A and B. Their structures and stereochemistry were established by spectroscopic methods, including X-ray crystallographic diffraction analysis of ravidin A. Their significance in terms of the chemotaxonomy of Nannoglottis is discussed. |
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| Keywords: | Nannoglottis ravida Compositae Structural determination Stereochemistry Clerodane-type diterpenoids Ravidin A and B |
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