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Characterization of New Ent-kaurane Diterpenoids of Yunnan Arabica Coffee Beans |
Rui Chu1,2, Luo-Sheng Wan1, Xing-Rong Peng1, Mu-Yuan Yu1,2, Zhi-Run Zhang1, Lin Zhou1, Zhong-Rong Li1, Ming-Hua Qiu1,2 |
1. State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; 2. University of Chinese Academy of Sciences, Beijing 100049, China |
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Abstract Five new ent-kaurane diterpenoids, named mascaroside III-V (1-3), and 20-nor-cofaryloside I-II (4-5), together with seven known diterpenoids, were isolated from methanol extracts of the green coffee beans of Yunnan Arabica Coffee. Their chemical structures were elucidated by extensive spectroscopic analyses. Meanwhile, cytotoxicity assay against HL-60, A-549, SMMC-7721, MCF-7 and SW480 cell lines showed that they have not evident inhibition of cytotoxicity.
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Keywords
Coffea arabica L.
Green coffee beans
Diterpenoids
Structural elucidation
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Fund:This work was supported financially by Programme of Key New Productions of Yunnan Province,Centre of CHINA (No.2015BB002);The STS Programme of Chinese Academy of Sciences (KFJ-SW-STS-143-8);as well as Foundation of State Key Laboratory of Phytochemistry and Plant Resources in West China (P2015-ZZ09) |
Issue Date: 08 February 2018
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