4-substituted-3-substituted-amino-cyclobut-3-ene-1,2-diones and analogs thereof as novel potassium channel openers
申请人:American Home Products Corporation
公开号:US06376555B1
公开(公告)日:2002-04-23
4-Substituted-3-substituted-amino-cyclobut-3-ene-1,2-diones having the Formula (I):
wherein R1, R2, R3, R4, R5, A and W are as defined in the specification which compounds relaxes smooth muscles.