Kojyl thioether derivatives having both tyrosinase inhibitory and anti-inflammatory properties
                                
                                    
                                        作者:Ho Sik Rho、Soo Mi Ahn、Dae Sung Yoo、Myung Kyoo Kim、Dong Ha Cho、Jae Youl Cho                                    
                                    
                                        DOI:10.1016/j.bmcl.2010.09.042
                                    
                                    
                                        日期:2010.11
                                    
                                    This study was conducted to examine the tyrosinase inhibitory and anti-inflammatory activities of kojic acid derivatives. A series of kojic acid derivatives containing thioether, sulfoxide, and sulfone linkages were synthesized. In the tyrosinase assay, kojyl thioether derivatives containing appropriate lipophilic alkyl chains (pentane, hexane, and cyclohexane) showed potent inhibitory activity. However, sulfoxides and sulfones exhibited decreased activity. Similar experimental results were obtained with inhibitory activities of NO production being induced by LPS. The presence of thioether linkage and appropriated lipophilic acid moiety was critical for the tyrosinase inhibitory and anti-inflammatory activities. (C) 2010 Elsevier Ltd. All rights reserved.