Chemical constituents from leaves of Boehmeria nivea
- PubMed: 20822015
Abstract
OBJECTIVE: To study the chemical constituents from the leaves of Boehmeria nivea. METHOD: The leaves were extracted by 95% EtOH at room temprature, the chemical leaves were isolated and purified by repeated silica gel column chromatography, Sephadex LH-20 column chromatography and semipreparative HPLC, and their structures were identified by physical and chemical properties and spectroscpoic methods. RESULT: One compound isolated from n-butanol fraction, four compounds were obtained from ethyl acetate fraction and three compounds from petroleum ether fraction. Their structures were elucidated as kiwiionoside (1), eugenyl beta-rutinoside (2), uracil (3), beta-sitosterol glucoside (4), 3-hydroxy-4-methoxy-benzoic acid (5), cholesterol (6), alpha-amyrin (7). nonacosanol (8). CONCLUSION: Compounds 1-3, 5-8 were isolated from the genus Boehmeria for the first time.
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