发明名称 SUBSTITUTED 6-PHENYLDIHYDRO-3(2H)-PYRIDAZINONES, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL PREPARATIONS CONTAINING THESE COMPOUNDS
摘要 The present invention relates to novel 6phenyldihydro 3-(2H)-pyridazinones corresponding to the formula (I) in which R1 denotes a nitro or a cyano group, R2 denotes a hydrogen atom or a methyl group and R3 stands for an ethoxycarbonyl or an acetyl group, and the physiologically acceptable salts thereof. These compounds are readily prepared in a form suitable for oral administration and are distinguished by a high positive inotropic action and have only a slight effect on blood pressure and cardiac frequency. A process for their preparation and pharmaceutical preparations containing these compounds are also described.
申请公布号 CA1316535(C) 申请公布日期 1993.04.20
申请号 CA19880586764 申请日期 1988.12.22
申请人 HEUMANN PHARMA GMBH & CO 发明人 HERTER, ROLF;MORSDORF, PETER;PFAHLERT, VOLKER;ENGLER, HEIDRUN;SCHICKANEDER, HELMUT;AHRENS, KURT H.
分类号 A61K31/50;A61K31/505;A61P9/04;A61P9/12;C07D237/04;C07D401/10;C07D403/12;C07D417/12 主分类号 A61K31/50
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