申请人:——
公开号:US20030158200A1
公开(公告)日:2003-08-21
Therapeutically active compounds of formula (I) in which R
1
to R
4
means hydrogen, alkyl, alkenyl, aryl, arylalkyl, carboxyalkyl, hydroxyalkyl or halogenalkyl, or R
2
and R
3
form a ring of 5-7 carbon atoms. R
5
to R
9
means hydrogen, alkyl, alkenyl, aryl, arylalkyl, acyl, hydroxy, alkoxy, alkoxycarbonyl, amino, acylamino, alkylamino, aryloxy, halogen, cyano, nitro, carboxy, alkylsulfonyl, sulfonamido or trifluoromethyl, wherein each aryl residue defined above by itself or as a part of another group may be substituted, and pharmaceutically acceptable salts and esters thereof. The compounds increase the calcium sensitivity of contractile proteins of the cardiac muscle and are thus useful in the treatment of congestive heart failure.
公式(I)中的治疗活性化合物,其中R1到R4表示氢、烷基、烯基、芳基、芳基烷基、羧基烷基、羟基烷基或卤代烷基,或者R2和R3形成一个由5-7个碳原子组成的环。R5到R9表示氢、烷基、烯基、芳基、芳基烷基、酰基、羟基、烷氧基、烷氧羰基、氨基、酰胺基、烷基胺基、芳氧基、卤素、氰基、硝基、羧基、烷基磺酰基、磺酰胺基或三氟甲基,其中上述每个芳基残基本身或作为另一群的一部分可能被取代,并且其药物学上可接受的盐和酯。这些化合物增加心肌收缩蛋白的钙敏感性,因此在充血性心力衰竭的治疗中非常有用。