申请人:Akzo N.V.
公开号:US04929636A1
公开(公告)日:1990-05-29
The invention relates to compounds of the general formula I ##STR1## wherein R.sub.1 represents one up to and including four, the same or different substituents selected from alkyl(1-6 C), alkoxy(1-6 C), hydroxy, halogen, NO.sub.2, CF.sub.3 or the group --NR.sub.5 R.sub.6, whereby two substituents taken together may also represent a methylene-dioxy group, X represents nitrogen or the group ##STR2## n has the value 0, 1 or 2, R.sub.3 represents one of the moieties: ##STR3## the latter meaning of R.sub.3 (amide) only under the condition that for X is nitrogen the meaning of R.sub.1 is limited to substituents selected from hydroxy, alkoxy(1-6 C) and methylenedioxy, and R.sub.4, R.sub.5 and R.sub.6 represent hydrogen or alkyl(1-6 C), and pharmaceutically acceptable salts thereof, suitable in the treatment of heart failure.
本发明涉及一般式I的化合物:##STR1## 其中,R.sub.1代表一个到四个相同或不同的取代基,所述取代基选自烷基(1-6C)、烷氧基(1-6C)、羟基、卤素、NO.sub.2、CF.sub.3或--NR.sub.5R.sub.6基团,其中两个取代基在一起也可以表示甲氧基基团,X代表氮或##STR2## n的值为0、1或2,R.sub.3代表以下基团之一:##STR3## 仅当X为氮时,R.sub.1的含义限于选自羟基、烷氧基(1-6C)和甲氧基二氧基的取代基,且R.sub.4、R.sub.5和R.sub.6代表氢或烷基(1-6C),以及其制备的药学上可接受的盐,在治疗心力衰竭方面具有适用性。