Liu Chuang, Zou Kun, Guo Zhiyong, Zhao Yuying, Cheng Fan, Zhang Hongqi
Hubei Key Laboratory of Natural Products Research and Development, China Three Gorges University, Yichang 443002, China.
Zhongguo Zhong Yao Za Zhi. 2010 Jun;35(11):1432-4.
To study the chemical constituents from the leaves of Boehmeria nivea.
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.
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).
Compounds 1-3, 5-8 were isolated from the genus Boehmeria for the first time.
研究苎麻叶的化学成分。
采用95%乙醇在室温下提取叶片，通过反复硅胶柱色谱、葡聚糖凝胶LH-20柱色谱和半制备高效液相色谱对化学成分进行分离纯化，并通过理化性质和光谱方法鉴定其结构。
从正丁醇部位分离得到1个化合物，从乙酸乙酯部位得到4个化合物，从石油醚部位得到3个化合物。其结构经鉴定分别为猕猴桃苷（1）、丁香酚β-芸香糖苷（2）、尿嘧啶（3）、β-谷甾醇葡萄糖苷（4）、3-羟基-4-甲氧基苯甲酸（5）、胆固醇（6）、α-香树脂醇（7）、二十九烷醇（8）。
化合物1-3、5-8首次从苎麻属植物中分离得到。
