The Effect of Fluorine Substitution on the Metabolism and Antimalarial Activity of Amodiaquine
作者:Paul M. O'Neill、Anthony C. Harrison、Richard C. Storr、Shaun R. Hawley、Stephen A. Ward、B. Kevin Park
DOI:10.1021/jm00035a017
日期:1994.4
effect of fluorine substitution on the oxidation potential, metabolism, and in vitro antimalarial activity of amodiaquine. The oxidation potentials were measured by cyclic voltammetry, and it was observed that substitution at the 2',6'- and the 4'-positions (2',6'-DIFAQ and 4'-deOH-4'-FAQ) produced analogues with significantly higher oxidation potentials than the parent drug. Fluorine substitution at the
阿莫地喹(AQ)(2)是一种4-氨基喹啉抗疟药,可引起不良副作用,例如粒细胞缺乏症和肝损害。据信,观察到的药物毒性与亲电子代谢物氨二喹醌亚胺(AQQI)的形成有关,后者可以与细胞大分子结合并引发超敏反应。5'-氟氨二喹(5'-FAQ,3),5',6'-二氟氨二喹(5',6'-DIFAQ,4),2',6'-二氟氨二喹(2',6'-DIFAQ,5) ,2',5',6'-三氟嘧啶(2',5',6'-TRIFAQ,6)和4'-dehydroxy-4'-氟嘧啶(4'-deOH-4'-FAQ,7)合成以评估氟取代对阿莫地喹的氧化潜能,代谢和体外抗疟活性的影响。通过循环伏安法测量氧化电位,观察到在2',6'-和4'-位置的取代(2',6'-DIFAQ和4'-deOH-4'-FAQ)产生了类似物具有比母体药物明显更高的氧化电位。在2',6'-位和4'-位的氟取代也产生了对生物活化更具抗性的类似物。因此2'