申请人:Hoffmann-La Roche Inc.
                            
                            
                                公开号:US08044213B2
                            
                            
                                公开(公告)日:2011-10-25
                            
                            
The invention is directed to compounds of formula (1)
and pharmaceutically acceptable salts thereof, methods for the preparation thereof, and methods of use thereof.
                            本发明涉及公式(1)的化合物及其药学上可接受的盐,其制备方法以及使用方法。