申请人:ACTELION PHARMACEUTICALS LTD
                            
                            
                                公开号:WO2009022311A2
                            
                            
                                公开(公告)日:2009-02-19
                            
                            The invention relates to 1,2-diamido-ethylene derivatives of the formula (I) wherein R1, R 2, R 3, and A are as described in the description and their use as medicaments, especially as orexin receptor antagonists.