Guo Qing-Mei, Yang Xiu-Wei
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Medical and Healthy Analysis Center, Peking University, Beijing, China.
Pharmazie. 2005 Sep;60(9):708-10.
Four ellagic acid derivatives have been isolated from the fruits of Eucalyptus globulus Labill., one of which is new compound, identified as 3-O-methylellagic acid 4'-O-alpha-L-2"-O-acetyl-rhamnopyranoside (1), the known compounds were identified as 3-O-methylellagic acid 4'-O-alpha-L-rhamnopyranoside (2), ellagic acid (3) and 3-O-methylellagic acid (4), on the basis of the analysis of 1H NMR, 13C NMR, HSQC, HMBC, IR and MS spectral data. It is alsoassignment the 13C NMR signals of 3-O-methylellagic acid 4'-O-alpha-L-rhamnopyranoside for the first.
从蓝桉果实中分离得到了四种鞣花酸衍生物，其中一种为新化合物，鉴定为3 - O - 甲基鞣花酸4'- O - α - L - 2'' - O - 乙酰鼠李糖苷（1），通过1H NMR、13C NMR、HSQC、HMBC、IR和MS光谱数据分析，确定已知化合物为3 - O - 甲基鞣花酸4'- O - α - L - 鼠李糖苷（2）、鞣花酸（3）和3 - O - 甲基鞣花酸（4）。首次对3 - O - 甲基鞣花酸4'- O - α - L - 鼠李糖苷的13C NMR信号进行了归属。
