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Journal of Asian Natural Products Research Volume 13, 2011 - Issue 11
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Original Articles

Anthraquinones from the roots of Knoxia valerianoides

Feng Zhao State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
,
Su-Juan Wang State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, ChinaCorrespondence[email protected]
,
Sheng Lin State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
,
Cheng-Gen Zhu State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
,
Shao-Peng Yuan State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
,
Xiao-Yu Ding State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
,
Zheng-Gang Yue State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
,
Yang Yu State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
,
Bo Liu State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
,
Xiu-Li Wu State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
,
Qi Hou State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
&
Jian-Gong Shi State Key Laboratory of Bioactive Substance and Function of Natural Medicines, and Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, ChinaCorrespondence[email protected]
 show all
Pages 1023-1029 | Received 16 May 2011, Accepted 18 Jul 2011, Published online: 19 Oct 2011
 
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Abstract

Five new 9,10-anthraquinones (1–5) were isolated from an ethanol extract of the roots of Knoxia valerianoides. Their structures including absolute configuration of 1 were determined by spectroscopic analysis. Compounds 4 and 5 showed moderate activity against nitrogen oxide production in macrophages induced by lipopolysaccharide, at 10− 5 M, with inhibition ratios of 50.4 ± 3.6 and 41.7 ± 2.1%, respectively.

Acknowledgements

Financial support from the National Natural Sciences Foundation of China (NNSFC; Grant Nos 30825044 and 20932007) and the National Science and Technology Project of China (No. 2009ZX09311-004) is acknowledged.

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