期刊
PHYTOCHEMISTRY
卷 66, 期 23, 页码 2740-2744出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.phytochem.2005.10.002
关键词
Lonicera japonica; Caprifoliaceae; biflavone; 3 '-O-methyl loniflavone; loniflavone
Two biflavorioids, 3'-O-methyl loniflavone [5,5,7,7-tetrahydroxy 3'-methoxy 4',4'-biflavonyl ether (1)] and loniflavone [5,5,7,7,3-pentahydroxy 4',4'-biflavonyl ether (2)] along with luteolin (3) and chrysin (4) were isolated from the leaves of Lonicera japonica. The structures were established on the basis of UV/vis, 1D, 2D NMR (HMQC and HMBC) and ESI-QTOF-MS/MS spectroscopic methods and chemical evidences. (c) 2005 Elsevier Ltd. All rights reserved.
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