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[Studies on chemical constituents from bark of Biebersteinia heterostemon]
Hai-Feng Wu1, Xiao-Feng Zhang, Ye Deng
1The Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining 810007, China.
Objective:
To study the chemical constituents of the whote plant Biebersteinia heterostemon (Geraniaceae).
Method:
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.
Result:
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).
Conclusion:
The three compounds were isolated from this plant for the first time.
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