申请人:Malesci Istituto Farmacobiologico S.p.A.
公开号:US05314890A1
公开(公告)日:1994-05-24
Xanthine derivatives having antiasthmatic activity are disclosed which have the following formula: ##STR1## where R is a linear or branched alkyl chain group of from one to six carbon atoms, R.sub.1 is a linear or branched alkyl or hydroxyalkyl group of from one to six carbon atoms. However, if R is methyl, then R.sub.1 is not methyl, ethyl or propyl; if R is ethyl, then R.sub.1 is not methyl or ethyl; and if R is methyl or n-butyl, then R.sub.1 is not 2-hydroxypropyl. Also disclosed are pharmaceutical compositions containing such xanthine derivatives.
揭示了具有抗哮喘活性的黄嘌呤衍生物,其化学式如下:##STR1##其中R是由一至六个碳原子组成的直链或支链烷基链基团,R.sub.1是由一至六个碳原子组成的直链或支链烷基或羟基烷基基团。然而,如果R是甲基,则R.sub.1不是甲基、乙基或丙基;如果R是乙基,则R.sub.1不是甲基或乙基;如果R是甲基或正丁基,则R.sub.1不是2-羟基丙基。还揭示了含有这种黄嘌呤衍生物的药物组合物。