Fifty-seven derivatives of glycyrrhetinic acid (GA) were synthesized, and their anti-hepatitis B virus (HBV) activity was evaluated in HepG 2.2.15 cells. Among them, sixteen compounds showed greater anti-HBV activity than GA, especially, compounds 29, 32, 35, 41 exhibited significantly inhibitory activities against HBV DNA replication with IC50 values of 5.71, 5.36, 8.90 and 9.08 mu M, respectively. The structure-activity relationships (SARs) of GA derivatives were discussed for exploring novel anti-HBV agents. (C) 2012 Elsevier Ltd. All rights reserved.
Thermosensitive Triterpenoid-Appended Polymers with Broad Temperature Tunability Regulated by Host-Guest Chemistry
作者:Jie Hao、Yuxia Gao、Ying Li、Qiang Yan、Jun Hu、Yong Ju
DOI:10.1002/asia.201700581
日期:2017.9.5
Thermoresponsive water‐soluble polymers are of great importance since they typically show a lower critical solution temperature (LCST) in aqueous media. In this research, the LCST change in broadtemperature ranges of copolymers composed of natural glycyrrhetinic acid (GA)‐based methacrylate and N,N′‐dimethylacrylamides (DMAs) was investigated as a function of the concentration and the content of GA