Nonsteroidal cardiotonics. 3. New 4,5-dihydro-6-(1H-indol-5-yl)pyridazin-3(2H)-ones and related compounds with positive inotropic activities
作者:Alfred Mertens、Walter Gunar Friebe、Bernd Mueller-Beckmann、Wolfgang Kampe、Lothar Kling、Wolfgang Von der Saal
DOI:10.1021/jm00172a031
日期:1990.10
substituted indolyldihydropyridazinones and related compounds 1-18 were synthesized and evaluated for positive inotropic activity. In rats, most of these indole derivatives produced a dose-related increase in myocardial contractility with little effect on heart rate and blood pressure. Compound 13, 4,5-dihydro-5-methyl-6-(2-pyridin-4-yl-1H-indol-5-yl)pyrazin-3(2H) -one (BM 50.0430), was further investigated
合成了一系列取代的吲哚基二氢吡啶并酮和相关化合物1-18,并评价了其正性肌力活性。在大鼠中,大多数这些吲哚衍生物会引起剂量相关的心肌收缩力增加,而对心率和血压影响很小。在猫中进一步研究了化合物13,4,5-二氢-5-甲基-6-(2-吡啶-4-基-1H-吲哚-5-基)吡嗪-3(2H)-1(BM 50.0430) 。该动物模型中收缩力的增加不是通过刺激β-肾上腺素受体介导的。对有意识的狗口服1 mg / kg的化合物后,化合物13和匹莫苯丹在6.5小时后仍然有效。然而,在这段时间之后,13的强心作用至少是匹莫苯丹的2倍。