期刊
JOURNAL OF NATURAL MEDICINES
卷 63, 期 2, 页码 209-214出版社
SPRINGER JAPAN KK
DOI: 10.1007/s11418-009-0314-z
关键词
Koelreuteria henryi; Sapindaceae; Flavonol galloylrhamnoside; Lignan glycoside; Radical-scavenging effect
资金
- National Science Council of the Republic of China
A new flavonol galloylrhamnoside, kaempferol 3-O-(2 '',3 ''-di-O-galloyl)-alpha-L-rhamnopyranoside, and a new lignan glycoside, hinokinin 7-O-beta-D-glucopyranoside were isolated from the leaves of Koelreuteria henryi, along with 18 known compounds, including six flavonol glycosides (3-8), three lignans (9-11), four chlorophyll derivatives (12-15), two steroids (16, 17), and three aromatic compounds (18-20). The structures were determined on the basis of spectral analysis and chemical evidence. The scavenging effect of 1-8 and 20 on the stable free radical 1,1-diphenyl-2-picrylhydrazyl was examined. Compounds 1, 5, 6, and 20 showed more potent activity than that of trolox.
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