This invention relates to pyridazine derivatives represented by the formula (1):
wherein R1 represents a (substituted) aryl group, R2 represents a phenyl group substituted at 4-position by a lower alkoxyl group or a lower alkylthio group, R3 represents a lower alkoxyl group, a halogenated lower alkyl group, a lower cycloalkyl group, a (subsituted) aryl group, a (substituted) aryloxy group, a (substituted) nitrogen-containing heterocyclic ring residue, a (substituted) aminocarbonyl group or a lower alkylcarbonyl group, A represents a single bond, a lower alkylene group or a lower alkenylene group, X represents O or S, and the dashed line indicates that the carbon-carbon bond between the 4-position and the 5-position is a single bond or a double bond, or salts thereof; and also to medicines containing them as effective ingredients. These compounds have excellent inhibitory activity against interleukin-1β production, and are useful as preventives and therapeutics for immune system diseases, inflammatory diseases, ischemic diseases and the like.
本发明涉及式(1)所代表的
哒嗪衍
生物:
其中 R1 代表(取代的)芳基,R2 代表在 4 位被低级烷氧基或低级烷
硫基取代的苯基,R3 代表低级烷氧基、卤代低级烷基、低级环烷基、(取代的)芳基、(取代的)芳氧基、(取代的)含氮杂环残基、一个(取代的)
氨基羰基或一个低级烷基羰基,A 代表单键、一个低级亚烷基或一个低级亚烯基,X 代表 O 或 S,虚线表示 4 位和 5 位之间的碳-碳键是单键或双键,或其盐;以及含有这些化合物作为有效成分的药物。这些化合物对白细胞介素-1β的产生具有良好的抑制活性,可作为免疫系统疾病、炎症性疾病、缺血性疾病等的预防和治疗药物。