2 METHYLATED FLAVONOLS FROM JASONIA-CANDICANS

Authors
AHMED AA MAHMOUD AA TANAKA T IINUMA M
Citation
Aa. Ahmed et al., 2 METHYLATED FLAVONOLS FROM JASONIA-CANDICANS, Phytochemistry, 35(1), 1994, pp. 241-243
Citations number
11
Categorie Soggetti
Plant Sciences
Journal title
Phytochemistry → ACNP
ISSN journal
00319422
Volume
35
Issue
1
Year of publication
1994
Pages
241 - 243
Database
ISI
SICI code
0031-9422(1994)35:1<241:2MFFJ>2.0.ZU;2-M
Abstract
Two new flavonols, 6,4'-dihydroxy-3,5,7-trimethoxyflavone (6-hydroxyka empferol 3,5,7-trimethyl ether) and 3'-hydroxy-3,5,7,4'-tetramethoxyfl avone (quercetagetin 3,5,7,4'-tetramethyl ether) were isolated from th e leaves of Jasonia candicans (Compositae) in addition to luteolin, is okaempferide, penduletin, jacedin, and methyl ethers of 6-hydroxykaemp ferol and quercetagetin. The structures of the new flavonols were char acterized by spectroscopic analysis.