2-AMINOPYRIMIDIN-4-ONE AND 2-AMINOPYRIDINE DERIVATIVES BOTH HAVING BACE1-INHIBITING ACTIVITY
                        
                            
                                申请人:Yonezawa Shuji
                            
                            
                                公开号:US20110237576A1
                            
                            
                                公开(公告)日:2011-09-29
                            
                            The present invention provides a compound which has an effect of inhibiting amyloid-β production and is useful as a therapeutic agent for diseases induced by production, secretion and/or deposition of amyloid-β proteins. The present invention relates to a compound represented by formula (I) or a pharmaceutically acceptable salt or solvate thereof:
wherein A is optionally substituted carbocyclic diyl or optionally substituted heterocyclic diyl; B is an optionally substituted carbocyclic group or an optionally substituted heterocyclic group; R
1
is a group such as optionally substituted lower alkyl; R
2
is a group such as hydrogen; and R
3a
and R
3b
are each independently a group such as hydrogen, provided that the following compound is excluded.