6-Hydroxyluteolin-7-O-(1''-alpha-rhamnoside) from Vriesea sanguinolenta Cogn. and Marchal (Bromeliaceae).
The isolation of 6-hydroxyluteolin-7-O-(1"-alpha-rhamnoside) from the Central American epiphyte Vriesea sanguinolenta Cogn. and Marchal (Bromeliaceae) is described here. Its stereostructure was established by spectroscopic methods and an X-ray structure analysis of its hepta-O-acetyl derivative. This flavonoid glycoside had previously been reported from some Teucrium species (Labiatae), yet without sufficient physical data and spectroscopic evidence.
Bringmann
G
G
Institut für Organische Chemie der Universität, Würzburg, Germany. bringman@chemie.uni-wuerzburg.de
Ochse
M
M
Zotz
G
G
Peters
K
K
Peters
E M
EM
Brun
R
R
Schlauer
J
J
D000818:Animals; D000962:Antimalarials / Q000737:chemistry / Q000302:isolation & purification; D018360:Crystallography, X-Ray; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D047311:Luteolin; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry; D010944:Plants / Q000737:chemistry* / Q000145:classification; D010963:Plasmodium falciparum / Q000187:drug effects
C412075:6-hydroxyluteolin-7-O-(1''-rhamnoside); D000962:Antimalarials; D006027:Glycosides; D047311:Luteolin