申请人:Gaudreault René C.
                            
                            
                                公开号:US20120309777A1
                            
                            
                                公开(公告)日:2012-12-06
                            
                            Compounds of formula (I): wherein R
1
, R
2
, R
3
, R
4
, R
7
, R
6
, R
7
, R
8
, R
9
, A, X and Y as defined herein are provided as useful for the treatment of cancer or for the manufacture of anti-cancer agents.