Minor cytotoxic and antibacterial compounds from the rhizomes of Amomum aculeatum
Minor cytotoxic and antibacterial compounds from the rhizomes of Amomum aculeatum
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DOI:
10.1016/s0031-9422(01)00174-1
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发表时间:
2001-08-01
期刊:
影响因子:
3.8
通讯作者:
Sticher, O
中科院分区:
文献类型:
--
作者:
Heilmann, J;Brun, R;Sticher, O
A new cytotoxic 1,7-dioxa-dispiro[5.1.5.2]pentadeca-9,2-dien-11-one derivative, aculeatin D, and a new alkenone, 5-hydroxy-hexacos-1-en-3-one, have been isolated as minor compounds from the rhizomes of Amomum aculeatum. Their structures have been determined mainly by NMR spectroscopy and mass spectrometry. Aculeatin D showed high cytotoxicity against the KB and the L-6 cell line with IC50 of 0.38 mug/ml and 1 mug/ml, respectively. Additionally, it revealed remarkable activity against two Plasmodium falciparum strains, as well as against Trypanosoma brucei rhodesiense and Trypanosoma cruzi. 5-Hydroxy-hexacos-1-en-3-one exhibited neither cytotoxic nor antiprotozoal activity, whereas antibacterial testing against Bacillus cereus, Escherichia coli and Staphylococcus epidermidis showed moderate to strong activity for both compounds. (C) 2001 Published by Elsevier Science Ltd. All rights reserved.