申请人:Aktiebolaget Draco
公开号:US04442300A1
公开(公告)日:1984-04-10
New bronchospasmolytically active compounds exhibiting long duration of action and reduced undesired side effects, of the structural formula ##STR1## and therapeutically acceptable salts thereof, in which formula R, R.sup.1 and R.sup.2 are as follows: R is selected from the group consisting of --C(CH.sub.3).sub.3, ##STR2## R.sup.1 is selected from the group consisting of H and R.sup.2 ; R.sup.2 is selected from the group consisting of ##STR3## in which formulas R.sup.3 is selected from the group consisting of (a) H; ##STR4## wherein R.sup.5 is a straight or branched alkyl group containing 1-4 carbon atoms; and ##STR5## and wherein R.sup.4 is selected from the group consisting of (a) H (b) an alkyl group containing 1-3 carbon atoms, process for the preparation thereof, chemical intermediates at their preparation, pharmaceutical compositions containing them and their medicinal use.
具有长效作用和减少不良副作用的新支气管痉挛解除化合物,其结构式为##STR1##及其治疗上可接受的盐,其中R,R.sup.1和R.sup.2如下:R选自由--C(CH.sub.3).sub.3,##STR2## R.sup.1选自H和R.sup.2;R.sup.2选自##STR3##其中公式R.sup.3选自(a)H;##STR4##其中R.sup.5是含有1-4个碳原子的直链或支链烷基;以及##STR5##其中R.sup.4选自(a)H(b)含有1-3个碳原子的烷基,其制备方法,制备中间体,含有它们的制药组合物及其药用。