There is provided novel substituted 3-phenyl oxindole derivatives of the formula ##STR1## wherein R is hydrogen, hydroxy or fluoro; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each are independently hydrogen, C.sub.1-4 alkyl, halogen, trifluoromethyl, phenyl, p-methylphenyl or p-trifluoromethylphenyl; or R.sup.1 and R.sup.2, R.sup.2 and R.sup.3 or R.sup.3 and R.sup.4 are joined together to form a benzo fused ring; R.sup.5 is hydrogen or C.sub.1-4 alkyl; and R.sup.6 is chlorine or trifluoromethyl; or a nontoxic pharmaceutically acceptable salt, solvate or hydrate thereof, which are openers of the large-conductance calcium-activated potassium channels and are useful in the treatment of disorders which are responsive to the opening of the potassium channels.
提供了一种新型的取代的3-苯基氧
吲哚衍
生物,其
化学式为##STR1##其中R为氢,羟基或
氟;R.sup.1,R.sup.2,R.sup.3和R.sup.4分别独立地为氢,C.sub.1-4烷基,卤素,三
氟甲基,苯基,对甲基苯基或对三
氟甲基苯基;或R.sup.1和R.sup.2,R.sup.2和R.sup.3或R.sup.3和R.sup.4结合在一起形成苯并环;R.sup.5为氢或C.sub.1-4烷基;R.sup.6为
氯或三
氟甲基;或其无毒药物可接受的盐,溶剂或
水合物,其为大导电
钙激活
钾通道的开放剂,可用于治疗对
钾通道开放有反应的疾病。