Pyridine derivatives represented by the following general formula
wherein R1, R2, R3, and R4, which may the same or different, each represents a hydrogen atom or a lower alkyl group, or R1 and R2, or R3 and R4, are taken together to form a hetero ring together with the adjacent nitrogen atom, A1 and A2, which may be the same or different, each represents an alkylene or hydroxy-substituted alkylene group, Y' and Y2, which may be the same or different, each represents an oxygen or sulfur atom, and Z represents
or the pharmaceutically acceptable acid addition salts thereof. These compounds show pharmacological effects such as acceleration of leukocyte phagocytosis, acceleration of macrophage phagocytosis, acceleration of production of rosette forming cells of spleen, and depression of adjuvant arthritis, thus being useful as medicines.
由以下通式代表的
吡啶衍生物
其中 R1、R2、R3 和 R4(可以相同或不同)分别代表
氢原子或低级烷基,或 R1 和 R2 或 R3 和 R4 与相邻的
氮原子一起形成杂环,A1 和 A2(可以相同或不同)分别代表亚烷基或羟基取代的亚烷基,Y'和 Y2(可以相同或不同)分别代表
氧原子或
硫原子,Z 代表
或其药学上可接受的酸加成盐。这些化合物具有加速白细胞吞噬、加速巨噬细胞吞噬、加速脾脏花斑形成细胞生成、抑制佐剂性关节炎等药理作用,因此可作为药物使用。