Shang Xiao-Ya, Li Shuai, Wang Su-Juan, Yang Yong-Chun, Shi Jian-Gong
Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100050, China.
Zhongguo Zhong Yao Za Zhi. 2007 May;32(9):815-8.
To study the chemical constituents of Bauhinia aurea.
The compounds were isolated by column chromatography over silica gel, reversed-phase RP-18, and Sephadex LH -20. MS and NMR spectroscopic methods were used to determine structures of purified compounds.
Eight compounds were isolated from the ethyl acetate soluble fraction of the ethanolic extract and their structures were elucidated as isoengeletin (1), astilbin (2), neoastilbin (3), isoastilbin (4), neoisoastilbin (5), (+)-catechin (6), (-)-epicatechin (7) and (-)-epicatechin 3-O-gallate (8).
Five compounds were isolated from this genus for the first time except for 2, 6 and 8.
研究黄山紫荆的化学成分。
采用硅胶柱色谱、反相RP - 18柱色谱和葡聚糖凝胶LH - 20柱色谱分离化合物。运用质谱和核磁共振光谱法确定纯化化合物的结构。
从乙醇提取物的乙酸乙酯可溶部分分离得到8个化合物，其结构分别鉴定为异恩贝灵（1）、落新妇苷（2）、新落新妇苷（3）、异落新妇苷（4）、新异落新妇苷（5）、（+）-儿茶素（6）、（-）-表儿茶素（7）和（-）-表儿茶素3 - O -没食子酸酯（8）。
除2、6和8外，首次从该属植物中分离得到5个化合物。
