[Studies on constituents from root and stem of Ervatamia hainanensis].
OBJECTIVE
To investigate the constituents of Ervatamia hainanensis systematically.


METHODS
Various chromatographic techniques were applied to isolate and purify the constituents of this plant. The structures were elucidated by spectroscopic analysis.


RESULTS
Eight compounds were obtained, which were identified as alpha-amyrin acetate (1), 11-oxo-alpha-amyrin acetate (2), beta-sitosterol (3), cycloart-23-ene-3beta, 25-diol(4), cycloart-25-ene-3beta, 24-diol (5), 5alpha, 8alpha-epidioxyergosta-6, 22-dien-3beta-ol (6), ibogamin-3-one (7), beta-daucosterol (8).


CONCLUSIONS
Compounds 1, 2, 4- 7 were isolated from this plant for the first time.
Huang
Jian-Peng
JP
College of Lfe Science, Northwest Agriculture and Forestry University, Yangling 712100, China.
Ma
Yang-Min
YM
Jiang
Jian-Shuang
JS
Zhang
Pei-Cheng
PC
D029062:Apocynaceae / Q000737:chemistry*; D004875:Ergosterol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
C503471:5alpha,8alpha-epidioxyergosta-6,22-dien-3-beta-ol; C102764:9,19-cycloart-23-ene-3,25-diol; D014315:Triterpenes; D009828:Oleanolic Acid; C036380:beta-amyrin; D004875:Ergosterol