申请人:Zhang Hesheng
                            
                            
                                公开号:US20120309797A1
                            
                            
                                公开(公告)日:2012-12-06
                            
                            Compounds of formula (I) or pharmaceutically acceptable salts thereof, and use for treating cancer thereof are disclosed, wherein, the definitions of X, Y, R
1
, R
2
and n are described in description.
                            公式(I)的化合物或其药用盐的使用,以及用于治疗癌症的方法已被披露,其中,X、Y、R1、R2和n的定义在描述中描述。