Development of a novel series of styrylquinoline compounds as high-affinity leukotriene D4 receptor antagonists: synthetic and structure-activity studies leading to the discovery of (.+-.)-3-[[[3-[2-(7-chloro-2-quinolinyl)-(E)-ethenyl]phenyl][[3-(dimethylamino)-3-oxopropyl]thio]methyl]thio]propionic acid
作者:R. Zamboni、M. Belley、E. Champion、L. Charette、R. DeHaven、R. Frenette、J. Y. Gauthier、T. R. Jones、S. Leger
DOI:10.1021/jm00099a011
日期:1992.10
Based on LTD4 receptor antagonist activity of 3-(2-quinolinyl-(E)-ethenyl)pyridine (2) found in broad screening, structure-activity studies were carried out which led to the identification of 3-[[[3-[2-(7-chloro-2-quinolinyl)-(E)-ethenyl]phenyl][[3- (dimethylamino)-3-oxopropyl]thio]methyl]thio]propionic acid (1, MK-571) as a potent and orally active LTD4 receptor antagonist. These studies demonstrated
根据广泛筛选中发现的3-(2-喹啉基-(E)-乙烯基)吡啶(2)的LTD4受体拮抗剂活性,进行了结构活性研究,从而鉴定了3-[[[[[[有力的2-(7-氯-2-喹啉基)-(E)-乙烯基]苯基] [[3-(二甲基氨基)-3-氧丙基]硫代]甲基]硫代]丙酸(1,MK-571)和口服活性LTD4受体拮抗剂。这些研究表明,苯环可以取代2取代吡啶而不会失去活性,喹啉基团中的7卤素取代最适合结合,(E)-乙烯基键最适合,结合力的增强可通过结合引入芳基环3位上的一个或多个极性酸性基团,并且可以通过由硫代丙酸和相应的苯乙烯基喹啉3-醛形成的二硫缩醛结合两个酸性基团,以生成化合物20(IC50 = 3 nM vs [3H] LTD4与豚鼠肺膜结合)。发现酸性基团之一可以转化为多种酰胺而不会丧失效力,并且二甲基酰胺1体现了内在效力的最佳性能(对豚鼠肺LTD4受体的IC50 = 0.8 nM)和口服体内对豚鼠,