[Studies on chemical constituents from bark of Biebersteinia heterostemon].
OBJECTIVE
To study the chemical constituents of the whote plant Biebersteinia heterostemon (Geraniaceae).


METHODS
The ethanol extract of the whole plants was separated by various chromatographic methods and the compounds from the extract were identified by spectroscopic evidence including MS, IR, NMR and X-ray crystallographic analysis.


RESULTS
Three isoprenyl guanidine derivatives were isolated from the whole plant of Biebersteinia heterostemon and identified as galegine (1) , cis-4-hydroxygalegine (2) and trans-4-hydroxygalegine (3).


CONCLUSIONS
The three compounds were isolated from this plant for the first time.
Wu
Hai-Feng
HF
The Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining 810007, China.
Zhang
Xiao-Feng
XF
Deng
Ye
Y
Pan
Li
L
Ding
Li-Sheng
LS
D031314:Geraniaceae / Q000737:chemistry*; D006146:Guanidines / Q000737:chemistry / Q000302:isolation & purification*; D008968:Molecular Conformation; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*
D006146:Guanidines; C074315:galegine