鞣花酸
化学
立体化学
树皮(声音)
多酚
抗氧化剂
生物化学
生物
生态学
作者
Ahmed Elkhateeb,Subeki Subeki,Kosaku Takahashi,Hideyuki Matsuura,Masahiro Yamasaki,Osamu Yamato,Yoshimitsu Maede,Ken Katakura,Tomohito Yoshihara,Kensuke Nabeta
出处
期刊:Phytochemistry
[Elsevier]
日期:2005-11-01
卷期号:66 (21): 2577-2580
被引量:30
标识
DOI:10.1016/j.phytochem.2005.08.020
摘要
Bioassay-guided investigation of the bark of Elaeocarpus parvifolius led to the isolation of three new ellagic acid derivatives, 4-O-methylellagic acid 3'-alpha-rhamnoside (2), 4-O-methylellagic acid 3'-(3''-O-acetyl)-alpha-rhamnoside (3), and 4-O-methylellagic acid 3'-(4''-O-acetyl)-alpha-rhamnoside (4) in addition to the known ellagic acid derivative, 4-O-methylellagic acid 3'-(2'',3''-di-O-acetyl)-alpha-rhamnoside (1). Their structures were elucidated on the basis of analysis of 1H NMR, 13C NMR, HMQC, HMBC and MS spectroscopic data. Compounds 1-4 were evaluated for their growth-inhibitory effect on Babesia gibsoni in vitro. Compounds 2 and 4 showed very weak activity, while compounds 1 and 3 showed moderate activity, with IC50 values of 28.5 and 52.1 microg/ml, respectively.
科研通智能强力驱动
Strongly Powered by AbleSci AI