Antioxidant flavonoid glycosides from Daphniphyllum calycinum

被引：99

作者：

Gamez, EJC

Luyengi, L

Lee, SK

Zhu, LF

Zhou, BN

Fong, HHS

Pezzuto, JM

Kinghorn, AD ^{[1
]}

机构：

[1] Univ Illinois, Coll Pharm, Program Collaborat Res Pharmaceut Sci, Chicago, IL 60612 USA

[2] Univ Illinois, Coll Pharm, Dept Med Chem & Pharmacognosy, Chicago, IL 60612 USA

[3] Acad Sinica, S China Inst Bot, Guangzhou, Peoples R China

[4] Acad Sinica, Shanghai Inst Mat Med, Shanghai, Peoples R China

来源：

JOURNAL OF NATURAL PRODUCTS | 1998年 / 61卷 / 05期

关键词：

D O I：

10.1021/np9800203

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A novel flavonoid diglycoside, 5,6,7,4'-tetrahydroxyflavonol 3-O-rutinoside (1), and a previously known compound, kaempferol 3-O-neohesperidoside (2), were isolated from an ethyl acetate extract of Daphniphyllum calycinum leaves that showed significant activity in a 1,1-diphenyl-2-picrylhydrazyl (DPPH) free-radical assay. The structure of 1 was elucidated by a combination of spectroscopic methods, and compounds 1 and 2 were found to be moderately active as antioxidants in the DPPH assay.

引用

页码：706 / 708

页数：3

共 11 条

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