申请人:Sandoz Ltd.
公开号:US04478837A1
公开(公告)日:1984-10-23
Pharmaceutical compositions comprising as the active ingredient thereof an aminopyridazine derivative of the formula: ##STR1## wherein R.sub.1 is amino, or ##STR2## wherein each of R.sub.3 and R.sub.4 is alkyl of 1 to 4 carbon atoms, or R.sub.3 and R.sub.4 together with the carbon atom to which they are bound, form a cycloalkylidene radical of 5 to 12 carbon atoms, R.sub.2 is hydrogen or methyl, A is --(CH.sub.2).sub.n --, wherein n is 0 or an integer from 1 to 7, or >N--CO--R.sub.5, wherein R.sub.5 is alkyl of 1 to 16 carbon atoms, alkenyl of 3 to 6 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, 1-adamantyl, or --(CH.sub.2).sub.m --R.sub.6, wherein m is 0 or an integer from 1 to 4, and R.sub.6 is phenyl; phenyl monosubstituted by fluorine, chlorine, bromine, alkyl or alkoxy of 1 to 4 carbon atoms, alkylmercapto of 1 to 4 carbon atoms, or phenyl; phenyl substituted by two or three substitutents of the group chlorine, alkyl or alkoxy of 1 to 4 carbon atoms; diphenylmethyl, the phenyl rings of which may be monosubstituted by fluorine, chlorine, bromine, alkyl or alkoxy of 1 to 4 carbon atoms; or naphthyl, or --OR.sub.7, wherein R.sub.7 is alkyl of 1 to 4 carbon atoms, or alkenyl of 2 to 4 carbon atoms or phenyl or phenalkyl, which may be monosubstituted on the phenyl ring by chlorine, alkyl or alkoxy of 1 to 4 carbon atoms, and in which the alkylene chain of phenylalkyl is of 1 to 4 carbon atoms, R.sub.8 and R.sub.9 are each hydrogen or alkyl of 1 to 4 carbon atoms, or a pharmaceutically acceptable acid addition salt thereof are useful in the treatment of hypertension.
含有氨基吡啶衍生物的制剂,其作为活性成分的化学式如下:##STR1##其中R.sub.1是氨基或##STR2##其中R.sub.3和R.sub.4中的每一个是1到4个碳原子的烷基,或者R.sub.3和R.sub.4与它们所连接的碳原子形成5到12个碳原子的环烷基,R.sub.2是氢或甲基,A是--(CH.sub.2).sub.n--,其中n为0或1到7的整数,或者>N--CO--R.sub.5,其中R.sub.5是1到16个碳原子的烷基,3到6个碳原子的烯基,3到8个碳原子的环烷基,1-金刚烷基,或--(CH.sub.2).sub.m--R.sub.6,其中m为0或1到4的整数,R.sub.6是苯基;单取代为氟、氯、溴、1到4个碳原子的烷基或烷氧基、1到4个碳原子的烷硫基或苯基的苯基;取代为两个或三个氯、1到4个碳原子的烷基或烷氧基的苯基;苯基甲基,其苯环可能单取代为氟、氯、溴、1到4个碳原子的烷基或烷氧基;或萘基,或--OR.sub.7,其中R.sub.7是1到4个碳原子的烷基,2到4个碳原子的烯基或苯基或苯基烷基,它可能在苯环上被氯、1到4个碳原子的烷基或烷氧基单取代,苯基烷基的烷基链为1到4个碳原子,R.sub.8和R.sub.9各自为氢或1到4个碳原子的烷基,或其药学上可接受的酸盐,在治疗高血压方面有用。