申请人:——
公开号:US04548818A1
公开(公告)日:1985-10-22
Compounds having activity against chronic obstructive airway disease or cardiac disease, characterized by the formula ##STR1## wherein R.sup.1 is n-propyl, n-butyl, isobutyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2,2-dimethylpropyl, cyclopropyl, cyclobutyl, cyclopentyl or cyclohexylmethyl, and R.sup.2 is hydrogen or methyl, provided that R.sup.2 is methyl when R.sup.1 is n-propyl, n-butyl or isobutyl, or a physiologically acceptable salt thereof.
具有对慢性阻塞性呼吸道疾病或心脏疾病活性的化合物,其特征在于其化学式为##STR1##其中R.sup.1为n-丙基,n-丁基,异丁基,n-戊基,2-甲基丁基,3-甲基丁基,2,2-二甲基丙基,环丙基,环丁基,环戊基或环己基甲基,R.sup.2为氢或甲基,但当R.sup.1为n-丙基,n-丁基或异丁基时,R.sup.2为甲基,或其生理上可接受的盐。