申请人:Fujishita Toshio
                            
                            
                                公开号:US20120022255A1
                            
                            
                                公开(公告)日:2012-01-26
                            
                            This invention provides compounds having antiviral activities especially inhibiting activity for influenza virus, more preferably provides substituted 3-hydroxy-4-pyridone derivatives having cap-dependent endonuclease inhibitory activity.