In a search for revertants of multidrug-resistance in cancer cells, a novel (1) and two known (2, 3) sesquiterpene esters were isolated from the root of Celastrus orbiculatus. The structure of 1 was elucidated as 1 beta,2 beta-diacetoxy-6 alpha,9 alpha-bis(benzoyloxy)dihydro-beta-agarofuran. Compounds 1-3 partially or completely reversed resistance to adriamycin, vinblastine, and paclitaxel of multidrug-resistant KB-V1 and MCF7/ADR cells.
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Henan Acad Sci, Post Doctor Working Stn, Zhengzhou 450002, Peoples R China
Zhengzhou Univ, Pharmaceut Post Doctoral Res Stn, Zhengzhou 450052, Peoples R ChinaHenan Acad Sci, Post Doctor Working Stn, Zhengzhou 450002, Peoples R China
Zhang, Hai-Yan
Zhao, Tian-Zeng
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Henan Acad Sci, Post Doctor Working Stn, Zhengzhou 450002, Peoples R ChinaHenan Acad Sci, Post Doctor Working Stn, Zhengzhou 450002, Peoples R China
Zhao, Tian-Zeng
Wei, Yue
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Henan Acad Sci, Post Doctor Working Stn, Zhengzhou 450002, Peoples R ChinaHenan Acad Sci, Post Doctor Working Stn, Zhengzhou 450002, Peoples R China
Wei, Yue
Liu, Hong-Min
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Zhengzhou Univ, Pharmaceut Post Doctoral Res Stn, Zhengzhou 450052, Peoples R ChinaHenan Acad Sci, Post Doctor Working Stn, Zhengzhou 450002, Peoples R China