The invention relates to new azepino[1,2-a]pyrimidine derivatives--of the general formula ##STR1## wherein p=1, 2 and acid addition salts thereof which can be prepared by (a) reacting a compound of the formula ##STR2## with a compound of the general formula ##STR3## wherein p is as defined above and R.sup.7 is alkoxycarbonyl containing 2 to 5 carbon atoms or carboxamido or (b) reacting a compound of the general formula ##STR4## wherein R.sup.8 is alkyl containing 1 to 4 carbon atoms with a compound of the general formula ##STR5## wherein R.sup.7 is as defined above and if desired converting a compound of the general formula I to acid addition salt thereof or setting it free from the salt thereof. The new compounds show bronchodilatory activity.
该发明涉及新的azepino[1,2-a]
嘧啶衍
生物,其一般
化学式为##STR1##其中p=1,2,以及可由以下方法制备的其酸盐加合物:(a)将化合物的
化学式为##STR2##与一般
化学式为##STR3##的化合物反应,其中p如上定义,R.sup.7是含有2至5个碳原子的烷氧羰基或羧酰胺,或者(b)将一般
化学式为##STR4##的化合物与一般
化学式为##STR5##的化合物反应,其中R.sup.8是含有1至4个碳原子的烷基,R.sup.7如上定义,并且如有必要将一般
化学式I的化合物转化为其酸盐加合物或者从其酸盐中释放。这些新化合物显示出支气管扩张活性。