Two flavonoid glycosides from Chenopodium murale

A New Kaempferol Glycoside with Antioxidant Activity from Chenopodium ambrosioides Growing in Egypt

“…Different species belonging to this genus showed numerous pharmacological properties 3,4 . Also, the previous chemical investigations carried out on this genus revealed the presence of flavonoids [5][6][7] , terpenes 8 , sesquiterpene pygmol 9 , xyloside 10 , coumarins 11 , and essential oils 12 . Chenopodium ambrosioides Linn (Family Chenopodiaceae) is native to temperate America 13 .…”

Three New Kaempferol Glycosides from Cardamine leucantha

“…The HSQC experiment allowed a complete assignment of all H-and C-atom resonances. The number of the aromatic signals in both the 1 H-and 13 C-NMR spectra suggested the presence of kaempferol as aglycone [7].…”

Taxodione, a DNA-Binding Compound from Taxodium distichum L. (Rich.)

“…Compounds 1Ð5 (Fig. 1) were identified as 8--hydroxypimar-15-en-19-oic acid (1), taxodione (2), 6,7-dehydro-8-hydrotaxodone (3), quercetin-3-O--d-glucopyranoside (4), and shikimic acid (5) by comparing their IR, UV, MS, 1 H and 13 C NMR spectra with the available reported data (Silverstein et al, 1991;Ramos et al, 1984;Khabir et al, 1986;Simoes et al, 1986;Rodriguez-Hahn et al, 1989;Geiger et al, 1995;Lambert et al, 1998;Ahmed and El-Emary, 1999;Gohar et al, 2000). These compounds were isolated from the leaves of T. distichum L.…”