[Chemical constituents about the stem of Rabdosia excisa].
OBJECTIVE
To investigate the constituents of the stem of Rabdosia excisa.


METHODS
Compounds were separated and purified by silica gel column chromatography and their structures were determined by spectroscopic method.


RESULTS
Thirteen compounds isolated from this plant were identified as rabdesimte( 1 ), maoyecrystal E (2), 6beta,11alpha,15alpha-trihydroxy-6,7-seco-6,20-epoxy-1alpha, 7-ol-ide-ent-kaur-16-en (3), enmenol-glucoside (4), oridonol (5), macrocalyxin G (6), rabdosichuanin C (7), beta-sitosterol (8), ursolic acid (9), 2alpha-hydroxyursolic acid (10), maslinic acid ( 11 ), 2alpha,3alpha,19-trihydroxy-urs-12-en-28-oicacid (12), and daucosterol (13).


CONCLUSIONS
Except for compounds 5, 8, 9 and 13, the remaining compounds were found in R. excisa for the first time.
College of Pharmacy, Zhengzhou University, Zhengzhou 450052, China.
Yuexia
Y
Wu
Fan
F
Ye
Wei
W
Zhang
Jicheng
J
Li
Na
N
Liu
D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification; D037602:Isodon / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
D004224:Diterpenes; D010936:Plant Extracts; D014315:Triterpenes