A series of 3-, 4-, and 5-pyridyl-2(1H)-quinolone derivatives with H or HO or CH3O substituents in the 8-position were prepared and tested for positive inotropic activity. Several derivatives, especially 29, 9b, and 27 with a pyridyl ring in the 5-position, were ca. 2-10 times more potent on left guinea pig atria than sulmazole (ARL-115) and milrinone used as references. Some structure-activity relationships
制备了一系列在8位具有H或HO或
CH3O取代基的3-,4-和5-
吡啶基-2(1H)-
喹诺酮衍
生物,并测试了其正性肌力活性。大约有几个衍
生物,特别是在5位带有
吡啶环的29、9b和27。左豚鼠心房的效力是舒马唑(ARL-115)和
米力农用作参考的2-10倍。讨论了一些构效关系。