Synthesis and antihypertensive activity of 4-(1,2-dihydro-2-oxo-1-pyridyl)-2H-1-benzopyrans and related compounds, new potassium channel activators
作者:Rolf Bergmann、Rolf Gericke
DOI:10.1021/jm00164a005
日期:1990.2
other heterocycles such as 4-pyridone, pyrimidone, pyridazinone, pyrazinone, and 1,4-butanesultam, the activity is maintained. The removal of the 3-hydroxy function (----17a) does not significantly reduce the activity. The elimination of water from the chromanols leads to the formation of the chromenes, which are among the most potent antihypertensives known. The influence of diverse substituents, in
描述了4-(1,2-二氢-2-氧代-1-吡啶基)-2H-1-苯并吡喃-3-醇的合成和降压活性。未取代的吡啶酮加合物铅化合物7e具有高活性,吡啶酮环上的取代基导致活性降低。为了获得最佳活性,必须在C-6位上强烈吸电子的取代基。当2-吡啶酮环被其他杂环如4-吡啶酮,嘧啶酮,哒嗪酮,吡嗪酮和1,4-丁烷磺胺取代时,活性得以维持。3-羟基官能团(---- 17a)的去除不会显着降低活性。从苯并二氢吡喃醇中除去水会导致苯并二氢吡喃酮的形成,这是已知最有效的降压药之一。各种取代基,尤其是杂环C-6取代基的影响,以4-(2-氧代-1-吡咯烷基)色满-3-醇系列进行了研究。铬醇在3-羟基处被短链酸酯化,保持其活性。色烯双键的环氧化也产生活性化合物。环氧化物22的重排产生3-酮化合物23和烯醇衍生物25。酮23a的还原产生顺式-苯并二氢吡喃醇7ab及其反式异构体7e。在自发性高血压大鼠中以1 mg / kg