Liu Hong-Yu, Zhu Shu, Komatsu Katsuko, Cai Shao-Qing, Li Ya-Hui, Yu Chao, Jiang Yu, Sa Yi
Center for Health Food Evaluation, State Food and Drug Administration, Beijing 100070, China.
Zhong Yao Cai. 2008 Jul;31(7):998-1000.
To study the aqueous chemical constituents of the flower buds of Eugenia caryophylla.
The compounds were isolated by HP-20 resin column chromatography, RP-C18 column chromatography, preparative RP-C18 thin-layer chromatography, preparative RP-C18 high performance liquid chromatography, and their structures were established by NMR and MS evidences.
Five compounds were separated from the water extracts. Their structures were identified as quercetin-3-O-glucuronide (1), quercetin-3-O-glucuronide 6"-methyl ester (2), quercetin-3-O-glucopy-ranoside (3) , eugenyl-beta-rutinoside (4) and myricetin (5).
Compounds 1-4 are isolated from the genus for the first time.
研究丁香花芽的水化学成分。
通过HP - 20树脂柱色谱、RP - C18柱色谱、制备型RP - C18薄层色谱、制备型RP - C18高效液相色谱分离化合物，并通过核磁共振（NMR）和质谱（MS）证据确定其结构。
从水提取物中分离出5种化合物。其结构被鉴定为槲皮素 - 3 - O - 葡萄糖醛酸苷（1）、槲皮素 - 3 - O - 葡萄糖醛酸苷6'' - 甲酯（2）、槲皮素 - 3 - O - 葡萄糖吡喃糖苷（3）、丁香酚 - β - 芸香糖苷（4）和杨梅素（5）。
化合物1 - 4首次从该属中分离得到。
