| Literature DB >> 12502312 |
Rita Aquino1, Armando Cáceres, Silvana Morelli, Luca Rastrelli.
Abstract
Analysis of a methanolic extract of Tagetes lucida leaves has resulted in the isolation of a new flavonol glycoside, quercetagenin 3,4'-dimethyl ether 7-O-beta-D-glucopyranoside (1), two new phenolic acids, 3-(2-O-beta-D-glucopyranosyl-4-methoxyphenyl)propanoic acid (2) and its methylester (3), and known flavonols, aromatic acids, and 7-methoxycoumarin. Using the DPPH degrees test, the extract and some of its constituents showed a significant free-radical-scavenging effect in comparison to alpha-tocopherol and standard flavonols.Entities:
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Year: 2002 PMID： 12502312 DOI： 10.1021/np020018i
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050