New diazine derivatives corresponding to the general formula I ##STR1## and the physiologically acceptable salts thereof are described. The compounds according to the invention are new positive inotropic compounds having a higher and/or more selective action than compounds hitherto known and are therefore suitable for the treatment and prevention of diseases of the heart and circulation.
                            描述了与一般公式I ##STR1## 对应的新二嗪衍
生物及其生理上可接受的盐。根据本发明的化合物是新的正肌力化合物,具有比迄今为止已知的化合物更高和/或更选择性的作用,因此适用于治疗和预防心脏和循环疾病。