[Chemical constituents from bark of Caragana opulens].
OBJECTIVE
To investigate the chemical constituents of the bark of Caragana opulens.


METHODS
The constituents of the CH3Cl-soluble portion in the 95% ethanol extract were isolated and purified by means of chromatography. The compounds were identified by their physical characteristics and spectral features.


RESULTS
Eight compounds were isolated and identified as encelin(1), (+)-13-Hydroxyspathulenol(2), (+) -3alpha,9beta-aromaden dranediol(3), quercetin(4), penduletin(5), lupenol(6), Lup-20(29) -en-3-one (7), beta-sitosterol(8).


CONCLUSIONS
Compounds 1, 2, 5, 7 are isolated for the first time from Caragana genus.
Yang
Zhong-Duo
ZD
College of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China. yangzhongduo@126.com
Xiao
An-Rong
AR
Zhang
Xu
X
Li
Tao
T
Li
Shuo
S
D032602:Caragana / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D014315:Triterpenes; C469684:16-hydroxylup-20(29)-en-3-one; D011794:Quercetin