Mu H, Tang S, Zuo Q, Huang M, Zhao W. Dihydro-β-agarofuran-Type Sesquiterpenoids from the Seeds of
Celastrus virens and Their Multidrug Resistance Reversal Activity against the KB/VCR Cell Line.
JOURNAL OF NATURAL PRODUCTS 2021;
84:588-600. [PMID:
33683135 DOI:
10.1021/acs.jnatprod.0c01182]
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Abstract
Twenty-nine dihydro-β-agarofuran-type sesquiterpenoids, including 17 new and 12 known compounds, were obtained from the seeds of Celastrus virens. The structures of the new isolates were characterized by spectroscopic methods and X-ray diffraction analysis. Among these, 20 sesquiterpenoids were evaluated for their multidrug resistance (MDR) reversal activity against the KB/VCR cell line. As a result, compounds 6 and 8 were found to exhibit MDR-reversal activity of more than 10-fold at a concentration of 2 μM, and the reversal fold (RF) ratios of compounds 19, 21, and 24 were >97.9 at a 20 μM nontoxic concentration level.
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