申请人:Mitsui Toatsu Kagaku Kabushiki Kaisha
公开号:US04523011A1
公开(公告)日:1985-06-11
6-(Substituted phenyl)-4,5-dihydro-3(2H)-pyridazinone compounds possessing strong platelet aggregation inhibiting activity and blood pressure depressing activity, having the general formula: ##STR1## wherein R.sup.1 is hydrogen or lower alkyl; R.sup.2 is hydrogen, lower alkyl, lower alkylthio or the grouping R.sup.5 --NH-- where R.sup.5 is lower alkyl; R.sup.3 is phenyl, pyridyl, benzyl, lower alkyl or a substituted phenyl group carrying at any desired position on the benzene ring thereof the grouping: ##STR2## where R.sup.1 has the same meaning as given above; R.sup.4 is hydrogen or halogen; n is 0 or 1; and when both R.sup.2 and R.sup.3 are lower alkyl groups, R.sup.2 and R.sup.3 may be combined together with the bridging member ##STR3## between them to form the structure: ##STR4## where m is 2 or 3, as well as physiologically acceptable acid-addition salts thereof, and processes for preparing them.
具有强烈的血小板聚集抑制活性和降低血压活性的6-(取代苯基)-4,5-二氢-3(2H)-吡啶酮化合物,其具有以下通式:##STR1## 其中R.sup.1是氢或较低的烷基;R.sup.2是氢,较低的烷基,较低的烷基硫或基团R.sup.5 --NH--,其中R.sup.5是较低的烷基;R.sup.3是苯基,吡啶基,苄基,较低的烷基或取代苯基团,在苯环上的任意位置携带以下基团:##STR2## 其中R.sup.1具有上述相同的含义;R.sup.4是氢或卤素;n为0或1;当R.sup.2和R.sup.3都是较低的烷基时,R.sup.2和R.sup.3可以与它们之间的桥接成员##STR3## 结合在一起形成结构:##STR4## 其中m为2或3,以及其生理上可接受的酸加成盐,以及制备它们的方法。