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Chemical Constituents from the Stems of Ecdysanthera rosea |
| Chang-Wei Song1,2, Paul-Keilah Lunga3, Xu-Jie Qin1,2, Gui-Guang Cheng1,2, Ya-Ping Liu1, Xiao-Dong Luo1 |
1. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China;
2. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China;
3. Laboratory of Phytobiochemistry and Medicinal Plants Study, Department of Biochemistry, Faculty of Science, University of Yaoundé 1, P. O. Box 812, Yaoundé, Cameroon |
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Abstract One new eudesmane sesquiterpenoid(1) named ecdysantherol A and two new benzene derivatives ecdysantherols B(2) and C(3), together with five known benzene derivatives(4-8) were isolated from the stems of Ecdysanthera rosea. The structures of the new compounds were elucidated by extensive spectroscopic methods and X-ray diffraction. The known compounds were identified by the comparison of their spectroscopic data with reported literature data. Compound 1 showed moderate antibacterial activity against the Providensia smartii with MIC value of 12.5 μg/mL.
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| Keywords
Ecdysanthera rosea
Sesquiterpenoid
Phenolic glycoside
Absolute configuration
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| Fund:This project was supported by the National Natural Science Foundation of China(81225024), the National Science and Technology Support Program of China(2013BAI11B02). |
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Issue Date: 11 February 2018
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