Cytotoxic dihydrobenzophenanthridine alkaloids from the roots of Macleaya microcarpa
Cytotoxic dihydrobenzophenanthridine alkaloids from the roots of Macleaya microcarpa
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DOI:
10.1016/j.phytochem.2010.02.007
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发表时间:
2010-05-01
期刊:
影响因子:
3.8
通讯作者:
Qin, Hai-lin
中科院分区:
文献类型:
--
作者:
Deng, An-jun;Qin, Hai-lin
Five dihydrobenzophenanthridine alkaloids, named as maclekarpine A-E, were isolated from the roots of Macleaya microcarpa, together with 10 known benzophenanthridine/dihydrobenzophenanthridine derivatives and a known amide. Their structures were determined on the basis of spectroscopic methods. The relative configuration of maclekarpine A was solved by X-ray single-crystal diffraction, which also contributed to the establishment of the relative configuration of maclekarpine B and C, as well as the assignment of the absolute configuration of maclekarpine A-C with aid of their CD curves. Cytotoxicity of the isolated compounds against five human tumor cell-lines was evaluated, with some having activity with IC(50) values ranging from 0.1 to 3.5 mu M. (C) 2010 Elsevier Ltd. All rights reserved.