Kaempferol and its glycosides in the seeds hair of Asclepias syriaca L.
The following flavonoid compounds have been isolated and identified from the seeds hair of Asclepias syriaca L.: kaempferol, kaempferol 3-O-beta-galactopyranoside, kaempferol 3-O-beta-xylopyranosyl (1 --> 2)-beta-galactopyranoside, kaempferol 3-O-beta-glucopyranosyl (1 --> 2)-beta-galactopyranoside, kaempferol 3-O-alpha-rhamnopyranosyl (1 --> 2)-beta-galactopyranoside. Their structures were established by acid hydrolysis, H2O2 oxidation and spectral analysis (UV, 1H, 3C NMR, MS).
Sikorska
M
M
Department of Pharmacognosy Karol Marcinkowski University of Medical Sciences, Poznań, Poland.
Matławska
I
I
Frański
R
R
D002855:Chromatography, Thin Layer; D005419:Flavonoids; D006027:Glycosides / Q000032:analysis / Q000302:isolation & purification; D007202:Indicators and Reagents; D044949:Kaempferols; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives* / Q000032:analysis* / Q000302:isolation & purification; D012015:Reference Standards; D012639:Seeds / Q000737:chemistry
D005419:Flavonoids; D006027:Glycosides; D007202:Indicators and Reagents; D044949:Kaempferols; C006552:kaempferol; D011794:Quercetin