Studies on chemical constituents from bark of Biebersteinia heterostemon / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the chemical constituents of the whote plant Biebersteinia heterostemon (Geraniaceae).</p><p><b>METHOD</b>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.</p><p><b>RESULT</b>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).</p><p><b>CONCLUSION</b>The three compounds were isolated from this plant for the first time.</p>