Three New Bibenzyl Derivatives from Dendrobium candidum
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概要
- 論文の詳細を見る
Three new compounds were isolated from the stems of Dendrobium candidum: (S)-3,4,4'-trihydroxy-5,α-dimethoxybibenzyl (1), named dendrocandin C; (S)-3,4,4'-trihydroxy-5-methoxy-α-ethoxybibenzyl (2), named dendrocandin D; and 3,3',4,4'-tetrahydroxy-5-methoxybibenzyl (3), named dendrocandin E. Their structures were elucidated by 1D- and 2D-NMR spectroscopy and mass spectroscopy. The isolated compounds exhibited potent antioxidant activity in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging test, with IC_<50> values of 34.2, 34.5, and 15.6μM for compounds 1, 2, and 3, respectively. Vitamin C was used as positive control with IC_<50> 23.2μM.
- 公益社団法人日本薬学会の論文
- 2009-02-01
著者
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Wang Chun-lan
Institute Of Medicinal Plant Development Chinese Academy Of Medical Sciences And Peking Union Medica
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Guo Shun-xing
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical
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Xiao Pei-Gen
Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical C
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Li Y
Institute Of Natural Medicine Toyama Medical And Pharmaceutical University
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Li Yan
State Key Lab. Of Phytochemistry And Plant Resources In West China Kunming Inst. Of Botany Chinese A
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Xiao Pei-gen
Key Lab. Of Bioactive Substances And Resources Utilization Of Chinese Herbal Medicine (peking Union
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Xiao Pei-gen
Institute Of Medicinal Plant Development Chinese Academy Of Medical Sciences And Peking Union Medica
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Wang Ya-jun
Institute Of Medicinal Plant Development Chinese Academy Of Medical Sciences And Peking Union Medica
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Guo Shun-xing
Inst. Of Medicinal Plant Dev. Chinese Acad. Of Medical Sciences And Peking Union Medical Coll.
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Guo Shun-xing
Institute Of Medicinal Plant Development Chinese Academy Of Medical Sciences And Peking Union Medica
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Yang Jun-shan
Inst. Of Medicinal Plant Dev. Chinese Acad. Of Medical Sciences And Peking Union Medical Coll.
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LI Yan
Institute of Natural Medicine, Toyama Medical and Pharmaceutical University
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YANG Jun-Shan
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical
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Yang Jun-shan
Institute Of Materia Medica Chinese Academy Of Medical Sciences
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CHEN Xiao-Mei
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medic
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Chen Xiao-mei
Institute Of Medicinal Plant Development Chinese Academy Of Medical Sciences And Peking Union Medica
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Li Yan
Institute Of Applied Physics Crest Japan Science And Technology Corporation (jst) University Of Tsuk
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Li Yan
Key Laboratory Of Materials Physics Institute Of Solid State Physics Chinese Academy Of Sciences
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Li Yan
Institute Of Medicinal Plant Development Chinese Academy Of Medical Sciences And Peking Union Medica
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Wang Ya-jun
Institute Of Bioengineering Zhejiang University Of Technology:engineering Research Center Of Bioconversion And Biopurification Of The Ministry Of Education Zhejiang University Of Technology
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