The present invention relates to a phenylethanolaminotetralincarboxamide derivative represented by the general formula:
(wherein A represents a lower alkylene group; B represents an amino group, a di(lower alkyl)amino group or a 3 to 7-membered alicyclic amino group which may contain an oxygen atom in the ring; the carbon atom marked with * represents a carbon atom in (R) configuration, (S) configuration or a mixture thereof; and the carbon atom marked with (S) represents a carbon atom in (S) configuration) and a pharmaceutically acceptable salt thereof, which have a selective β2-adrenergic receptor stimulating effect with relieved burdens on the heart such as tachycardia and are useful as an agent for the prevention of threatened abortion and premature labor, a bronchodilator, and an agent for pain remission and promoting stone removal in urolithiasis.
本发明涉及一种由通式表示的
苯乙醇胺四氢甲酰胺衍
生物:
(其中 A 代表低级亚烷基;B 代表
氨基、二(低级烷基)
氨基或环中可能含有氧原子的 3 至 7 元脂环
氨基;标有 * 的碳原子代表(R)构型、(S)构型或其混合物中的碳原子;标记为(S)的碳原子代表(S)构型的碳原子)及其药学上可接受的盐,它们具有选择性β2-
肾上腺素能受体刺激作用,可减轻心动过速等心脏负担,可用作预防妊娠流产和早产的药物、支气管扩张剂、缓解疼痛的药物以及促进泌尿系统结石清除的药物。