[Chemical constituents from leaf of Rhododendron przewalskii].
OBJECTIVE
To study the chemical constituents from the leaf of Rhododendron przewalskii.


METHODS
Isolate and purify compounds by chromatographic methods, and identify structures by spectroscopic methods.


RESULTS
Six compounds were isolated and identified as hyperin (1), avicularin (2), gossypetin-3-O-β-D-galactoside (3), quercetin (4), betuloside (5) and β-sitosterol (6).


CONCLUSIONS
Compounds 1-4 and 6 are isolated from Rhododendron przewalskii for the frist time.
Jun-Yu
JY
Liang
Xin-Yu
XY
Du
Yan
Y
Chen
Xiao-Mei
XM
Ma
Rui
R
Xie
Ji
J
Zhang
D005419:Flavonoids; D018515:Plant Leaves; D011794:Quercetin / Q000031:analogs & derivatives; D029793:Rhododendron / Q000737:chemistry*; D012855:Sitosterols
D005419:Flavonoids; D012855:Sitosterols; C041388:avicularin; C025473:gamma-sitosterol; C021304:hyperoside; D011794:Quercetin; C059922:gossypetin