[EN] BENZENESULFONAMIDES USEFUL AS SODIUM CHANNEL INHIBITORS<br/>[FR] BENZÈNESULFONAMIDES UTILES EN TANT QU'INHIBITEURS DES CANAUX SODIQUES
                        
                            
                                申请人:PFIZER LTD
                            
                            
                                公开号:WO2012004743A1
                            
                            
                                公开(公告)日:2012-01-12
                            
                            The invention relates to sulfonamide derivatives, to their use i n medicine, to compositions containing them, to processes for their preparation and to intermediates used in such processes. More particularly the invention relates to new sulfonamide Nav1.7 inhibitors of formula (I): or pharmaceutically acceptable salts thereof, wherein Z1, Ra, Rb, R1, R2, R3, R4 and R5 are as defined in the description. Nav 1.7 inhibitors are potentially useful in the treatment of a wide range of disorders, particularly pain.