Cytotoxic quassinoids from Ailanthus altissima
摘要:
Two new quassinoids, altissinol A (1) and B (7), together with 12 known quassinoids, were isolated from the 95% ethanol extract of the barks of Ailanthus altissima. The structures of the new compounds (1 and 7) were determined on the basis of the spectroscopic methods including UV, IR, HR-ESI-MS, 1D and 2D NMR. The cytotoxic potential of all isolates were evaluated in vitro against three human hepatoma cell lines. Quassinoids 1-7 displayed potent cytotoxic activities against human hepatoma Hep3B and HepG2 cell lines. Interestingly, compounds 2, 3, and 5 exhibited cytotoxic activity against multidrug resistance HepG2/ADM cell line with IC50 value 4.3-fold more sensitive to Doxorubicin (DOX). (c) 2012 Elsevier Ltd. All rights reserved.
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DOI:
10.1016/j.bmcl.2012.11.116
被引量:
年份:
2013
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