申请人:Malesci Istituto Farmacobiologico S.p.A.
公开号:US04931437A1
公开(公告)日:1990-06-05
The present invention relates to 8-azaxanthines derivatives having antiasthmatic activity and the general formula: ##STR1## wherein: R.sub.1 is a hydrogen or a lower alkyl of from one to six carbon atoms or an arylalkyl group; R.sub.2 is a lower alkyl of from one to six carbon atoms or an aryl or an arylalkyl group; n=from 1 to 3 ##STR2## wherein: R.sub.3 and R.sub.4 are lower alkyl of one to four carbon atoms or complete together a five or six member heterocycle; and wherein the substitution in the triazole ring concerns the 7- or 8- or 9- positions: their salts which are physiologically acceptable, their pharmaceutical compositions and the process for preparing them.
本发明涉及具有抗哮喘活性的8-氮杂黄嘌呤衍生物,其通用公式如下:其中:R.sub.1为氢或由一至六个碳原子组成的低碳基或芳基烷基基团;R.sub.2为由一至六个碳原子组成的低碳基或芳基或芳基烷基基团;n=1至3;其中:R.sub.3和R.sub.4为由一至四个碳原子组成的低碳基或共同形成五元或六元杂环的完整基团;并且三唑环上的取代物涉及7-、8-或9-位置:它们的生理上可接受的盐、它们的药物组合物以及其制备方法。