Synthesis of 2(1H)-Quinolinone Derivatives and Their Inhibitory Activity on the Release of 12(S)-Hydroxyeicosatetraenoic Acid (12-HETE) from Platelets.
作者:Tetsuyuki UNO、Yasushi OZEKI、Yasuo KOGA、Gil-Namg CHU、Minoru OKADA、Katsumi TAMURA、Takehiro IGAWA、Fumiko UNEMI、Masaru KIDO、Takao NISHI
DOI:10.1248/cpb.43.1724
日期:——
A search for potent inhibitors of release of 12(S)-hydroxyeicosatetraenoic acid (12-HETE), which plays an important role in the pathogenesis of various circulatory disorders and arteriosclerosis, led us to 6-[4-(1-cyclohexyl-5-tetrazolyl)butoxy]-3, 4-dihydro-2(1H)-quinolinone (cilostazol) and 2(1H)-quinoinone derivatives having an azole group in the side chain. Many 2(1H)-quinolilnone derivatives were synthesized and tested in vitro for the inhibitory activity in human platelets. 3, 4-Dihydro-6-[3-(1-o-tolylimidazol-2-yl)sulfinylpropoxy]-2(1H)-quinolinone (5k) was found to be one of the most potent inhibitors of 12-HETE release, being more potent than esculetin. In addition, the sulfoxide 5k showed in vivo inhibitory activity on platelet adhesion in rats. Since 5k is recemic, the enantiomers were prepared and their potencies were compared in vitro and in vivo. (S)-(+)-5k had the best pharmacological profile and was selected as a candidate drug for further development. The structure-activity relationships are discussed.
寻找能够有效抑制12(S)-羟基二十碳四烯酸(12-HETE)释放的化合物,这种物质在多种循环系统疾病和动脉硬化的发病机制中扮演重要角色,最终引导我们发现了6-[4-(1-环己基-5-四唑基)丁氧]-3, 4-二氢-2(1H)-喹啉酮(西洛他唑)和含有唑类侧链的2(1H)-喹啉酮衍生物。合成了多种2(1H)-喹啉酮衍生物,并在体外测试了它们对人血小板的抑制活性。3, 4-二氢-6-[3-(1-邻甲基苯基咪唑-2-基)亚砜基丙氧]-2(1H)-喹啉酮(5k)是其中一种最有效的12-HETE释放抑制剂,其效能优于依斯可林。此外,亚砜化合物5k在大鼠体内表现出对血小板粘附的抑制活性。由于5k是外消旋体,因此合成了其对映体,并比较了它们在体外和体内的效能。 (S)-(+)-5k具有最佳的药理特性,并被选为进一步开发的候选药物。文中讨论了结构-活性关系。