期刊
PLANTA MEDICA
卷 70, 期 10, 页码 904-908出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-2004-832614
关键词
Evodia rutaecarpa; Rutaceae; leukotriene biosynthesis; quinolone alkaloids; traditional Chinese medicine (TCM)
The n-hexane extract of the fruits of Evodia rutaecarpa showed a considerable inhibiting effect on leukotriene biosynthesis in human granulocytes. Bioassay-guided fractionation of the extract led to the isolation of the 5 quinolone alkaloids: 1-methyl-2-nonyl-4(1H)-quinolinone, 1-methyl-2-(6Z)-6-undecenyl-4(1H)quinolinone, 1-methyl-2-(4Z,7Z)-4,7-tridecadienyl-4(1H)-quinolinone, evocarpine and 1-methyl-2-(6Z,9Z)-6,9-pentadecadienyl-4(1H)-quinolinone. The compounds exhibited inhibitory activity on leukotriene biosynthesis in a bioassay using human polymorphonuclear granulocytes, with IC(50) values of 12.1, 10.0, 10.1, 14,6 and 12.3 muM, respectively. Structure elucidation of the compounds was achieved by 1D and 2D NMR experiments and comparison of spectral data with literature data.
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