[Study on the chemical constituents of Leptopus chineseis].
OBJECTIVE
To study the chemical constituents of the ethyl ether extract of the Leptopus chineseis.


METHODS
The chemical constituents were isolated by means of chromatography and identified by spectra data and physicochemical characters.


RESULTS
Three compounds were isolated and identified as friedelane-2alpha, 3beta-diols (1), betulinic acid (2) and 3beta-O-trans-coumaroylbetulinic acid (3).


CONCLUSIONS
The compounds are isolated from Leptopus chineseis for the first time.
Department of chemistry, Zhengzhou University, Zhengzhou 450052, China. cyjcjl@126.com
Yan-Jun
YJ
Chen
Chao
C
Wang
Yue
Y
Long
Xian
X
Kou
Su-Xia
SX
Cheng
Wu-Peng
WP
Wang
Gui-Hong
GH
Wang
D019665:Euphorbiaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D053978:Pentacyclic Triterpenes; D010946:Plants, Medicinal / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D000094062:Betulinic Acid; D000097245:Ursolic Acid
D053978:Pentacyclic Triterpenes; D014315:Triterpenes; D000094062:Betulinic Acid; D000097245:Ursolic Acid