New alkanesulfonanilide derivatives, processes for preparation thereof and pharmaceutical composition comprising the same
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0292979A2
公开(公告)日:1988-11-30
Alkanesulfonanilide derivatives of the formula :
wherein
Ar is a group of the formula :
wherein R4, R5, R6 and R7 are each hydrogen, halogen, halo(lower)alkyl or lower alkoxy, or heterocyclic group which may have halogen or lower alkyl
Xis -S-n,
, -CO-, -NHCO-, -CONH- or
wherein n is 0, 1 or 2, R8 is hydrogen or lower alkyl,
R9 is hydrogen or hydroxy,
R1 is lower alkyl or halo(lower)alkyl,
R2 defines certain substituents,
R3 is hydrogen, nitro lower alkyl or halogen, and pharmaceutical acceptable salts thereof, processes for their preparation and pharmaceutical compositions comprising them.