申请人:Euroceltique S.A.
公开号:US04710503A1
公开(公告)日:1987-12-01
Compounds of the formula ##STR1## wherein R.sup.3 is ethyl, n-propyl or n-butyl, and R.sup.8 is hydrogen, methyl or ethyl, exhibit bronchodilating activity with reduced side effects and increased half-life. A method of achieving bronchodilation with reduced undesired effects (diuresis, CNS activity), by administering the said compounds to a patient, is also provided.
式子为##STR1##的化合物,其中R.sup.3为乙基、正丙基或正丁基,R.sup.8为氢、甲基或乙基,表现出具有减少副作用和增加半衰期的支气管扩张活性。还提供了一种通过向患者给予所述化合物来实现减少不良效应(利尿、中枢神经系统活性)的支气管扩张方法。