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Himalsamines A and B,two new amino sugar isomers from the leaves of Daphniphyllum himalaense subsp. macropodum
Institution:1. Department of Medical Laboratory Science and Biotechnology, China Medical University, Taichung, 40402, Taiwan;2. Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, 40402, Taiwan;3. Endemic Species Research Institute, Council of Agriculture, Nantou, 552203, Taiwan;4. School of Pharmacy, China Medical University, Taichung, 406040, Taiwan;5. Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, 40447, Taiwan;1. Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, PR China;2. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, PR China;3. Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, PR China;1. Department of Food Science, Tunghai University, No. 1727, Sec. 4, Taiwan Boulevard, Xitun District, Taichung, 40704, Taiwan;2. Department of Radiation Oncology, Taichung Veterans General Hospital, No. 1650, Sec. 4, Taiwan Boulevard, Xitun District, Taichung, 40705, Taiwan;1. Division of Materia Medica Development, National Research Institute of Chinese Medicine, Taipei, 112026, Taiwan;2. Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei, 110301, Taiwan;3. School of Pharmacy, China Medical University, Taichung, 406040, Taiwan;4. Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, 404332, Taiwan;5. Institute of Physiology, School of Medicine, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan;6. Institute of Traditional Medicine, National Yang Ming Chiao Tung University, Taipei, 112304, Taiwan;7. Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung, 404333, Taiwan;8. Master Program for Food and Drug Safety, China Medical University, Taichung, 406040, Taiwan;9. Division of Chinese Internal Medicine, Center for Traditional Chinese Medicine, Chang Gung Memorial Hospital, Tao-Yuan, 333, Taiwan;10. Department of Biochemical Science and Technology, National Chiayi University, Chiayi, 600355, Taiwan;11. Department of Chinese Medicine, Taipei Medical University Hospital, Taipei, 110301, Taiwan;12. Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei, 110301, Taiwan;13. Graduate Institute of Integrated Medicine, College of Chinese Medicine, China Medical University, Taichung, 404333, Taiwan;1. Key Laboratory of Functional Yeast, China National Light Industry & Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang 443002, PR China;2. School of Biotechnology and Food Engineering, Changshu Institute of Technology, Suzhou 215500, PR China;3. Three Gorges Public Inspection and Testing Center, Yichang 443005, PR China;4. Hubei Key Laboratory of Tumor Microenvironment and Immunotherapy, Three Gorges University Medical College, China Three Gorges University, Yichang 443002, PR China;5. Agricultural College, Hubei Three Gorges Polytechnic, Yichang 443000, PR China;1. Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, PR China;2. Department of Pharmacy, Yanbian University Hospital, Yanji 133000, PR China;1. Key Laboratory of Basic and Application Research of Beiyao (Heilongjiang University of Chinese Medicine), Ministry of Education University of Chinese Medicine, Harbin 150040, PR China;2. Shandong Qingdao Hospital of Integrated Traditional and Western Medicine, PR China
Abstract:A phytochemical investigation performed on the leaves of Daphniphyllum himalaense has led to the characterization of two new amino sugars (1 and 2) and six known daphniphyllum alkaloids. The structures of new compounds were determined based on the interpretation of spectroscopic data. Some of the alkaloids were found to possess moderate to weak activity against the hepatitis C virus infection.
Keywords:Daphniphyllaceae  Amino sugar  Tagatose  Anti-HCV activity  Alkaloid
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