Pharmaceutical composition for chelating excess iron in a mammal and facilitating the removal of excess iron from the mammalian body are disclosed which comprise as active ingredient an iron-chelating agent selected from the group consisting of 5H-pyrimido(2',1':2,3)imidazo(4,5-b)indole having the formula ##STR1## 5H-pyrido(2',1':2,3)imidazo(4,5-b) indole having the formula ##STR2## or lower alkyl and/or halogen substituted derivatives thereof and pharmaceutically acceptable acid addition salts thereof. Furthermore the preparation of novel 5H-pyrimido(2',1':2,3)imidazo(4,5-b)indoles and intermediates thereof are disclosed.
本发明揭示了一种用于螯合哺乳动物中过量
铁并促进从哺乳动物体内去除过量
铁的药物组合物,其包括以下活性成分:选择自5H-
嘧啶并(2',1':2,3)
咪唑(4,5-b)
吲哚的
铁螯合剂,其
化学式为##STR1##5H-
吡啶并(2',1':2,3)
咪唑(4,5-b)
吲哚,其
化学式为##STR2##或其低级烷基和/或卤素取代衍
生物和药学上可接受的酸盐。此外,本发明还揭示了新型5H-
嘧啶并(2',1':2,3)
咪唑(4,5-b)
吲哚及其中间体的制备方法。