Disclosed are imidazo[4,5-b]pyridine derivatives of the formula I
wherein R₁, R₂ and R₃ are as defined in the specification, which exhibit valuable pharmacological properties, especially as adenosine-2 (A-2) receptor agonists, and the preparation thereof.
所公开的是式 I 的
咪唑并[4,5-b]
吡啶衍生物
其中 R₁、R₂ 和 R₃ 如说明书中所定义,这些衍
生物具有重要的药理特性,特别是作为
腺苷-2 (A-2) 受体激动剂,以及其制备方法。