Pyrimidinedione derivatives of the formula: ##STR1## wherein R.sup.1 and R.sup.2 is so linked with each other as to make an alkylene chain and thus form a heterocyclic structure, A, R.sup.3, R.sup.4, X.sup.1, X.sup.2 and X.sup.3 are substituents, respectively, and n is 2 or 3 have a basic backbone in which a phenyl group part and a pyrimidinedione part are linked by a structure comprising an alkyl chain and a heterocyclic ring having two nitrogen atoms. These compounds are useful for a medical treatment of cardiac arrhythmias.
该文献介绍了一类
嘧啶二酮衍
生物,其
化学式为:##STR1## 其中R.sup.1和R.sup.2通过一个烷基链彼此连接,从而形成一个杂环结构,A,R.sup.3,R.sup.4,X.sup.1,X.sup.2和X.sup.3分别为取代基,n为2或3。这些化合物具有基本的骨架,其中苯基部分和
嘧啶二酮部分通过一个包含烷基链和含有两个氮原子的杂环环结构相连。这些化合物可用于治疗心律失常。