申请人:Sterling Drug Inc.
公开号:US04297363A1
公开(公告)日:1981-10-27
2-Amino-3(4 or 5)-PY-phenol, a cardiotonic agent, is prepared by reducing 2-nitro-3(4 or 5)-PY-phenol, where PY is 4- or 3-pyridinyl or 4- or 3-pyridinyl having one or two lower-alkyl substituents. 2-Amino-3(4 or 5)-PY-phenol or pharmaceutically-acceptable acid-addition salt thereof is disclosed as the active component in a cardiotonic composition for increasing cardiac contractility and in the method for increasing cardiac contractility in a patient requiring such treatment. The novel isomeric 4-amino-5-(4-pyridinyl)phenol is shown for comparative purposes.
2-氨基-3(4或5)-PY-苯酚是一种心脏强效剂,通过还原2-硝基-3(4或5)-PY-苯酚制备而成,其中PY是4-或3-吡啶基或具有一或两个较低烷基取代基的4-或3-吡啶基。本发明揭示了2-氨基-3(4或5)-PY-苯酚或其药学上可接受的酸加成盐作为心脏强效剂组合物的活性成分,用于增加心脏收缩力并用于需要此类治疗的患者的增加心脏收缩力的方法。为比较目的,还显示了新的异构体4-氨基-5-(4-吡啶基)苯酚。