The present invention relates to amide and urea derivatives of heteroaryl-substituted diazatricycloalkanes, pharmaceutical compositions including the compounds, methods of preparing the compounds, and methods of treatment using the compounds. More specifically, the methods of treatment involve modulating the activity of the α7 nAChR subtype by administering one or more of the compounds to treat or prevent disorders mediated by the α7 nAChR subtype. The diazatricycloalkanes typically consist of a 1-azabicyclooctane fused to pyrrolidine ring. The substituent heteroaryl groups are 5- or 6-membered ring heteroaromatics, such as 3-pyridinyl and 5-pyrimidinyl moieties, which are attached directly to the diazatricycloalkane. The secondary nitrogen of the pyrrolidine moiety is substituted with an arylcarbonyl (amide type derivative) or an arylaminocarbonyl (N-arylcarbamoyl) (urea type derivative) group. The compounds are beneficial in therapeutic applications requiring a selective interaction at certain nAChR subtypes. That is, the compounds modulate the activity of certain nAChR subtypes, particularly the α7 nAChR subtype, and do not have appreciable activity toward muscarinic receptors. Radiolabeled versions of the compounds can be used in diagnostic methods.
本发明涉及杂环取代的二氮杂
三环烷的酰胺和
脲衍
生物,包括这些化合物的药物组合物、制备这些化合物的方法以及使用这些化合物的治疗方法。更具体地说,治疗方法涉及通过给予一种或多种化合物来调节α7 nAChR亚型的活性,以治疗或预防α7 nAChR亚型介导的疾病。二氮杂
三环烷通常由1-氮杂双
环辛烷和
吡咯烷环融合而成。取代杂环基团是5-或6-成员环杂芳基,例如3-
吡啶基和5-
嘧啶基,直接连接到二氮杂
三环烷上。
吡咯烷基的次级氮原子被芳基羰基(酰胺型衍
生物)或芳基
氨基羰基(N-芳基
氨基甲酰)(
脲型衍
生物)基团取代。这些化合物对于需要在某些nAChR亚型上选择性作用的治疗应用是有益的。也就是说,这些化合物调节特定的nAChR亚型,特别是α7 nAChR亚型的活性,并且对于
胆碱能受体没有明显的活性。这些化合物的放射性标记版本可用于诊断方法。