NOVEL PYRIDAZINE DERIVATIVES AND DRUGS CONTAINING THE SAME AS THE ACTIVE INGREDIENT
申请人:Kowa Co., Ltd.
公开号:EP1061077A1
公开(公告)日:2000-12-20
This invention relates to pyridazine derivatives represented by the formula (1):
wherein R1 represents a lower alkoxyl group, a lower alkylthio group or a halogen atom; R2 represents H, a lower alkoxyl group, a lower alkylthio group or a halogen atom; R3 represents a lower alkyl or lower alkenyl group, which may be substituted by one or more OHs, CNs, lower cycloalkyl groups, (substituted) aromatic groups or (substituted) carbamoyl groups; R4 represents COOH, a lower alkoxycarbonyl group, a (substituted) carbamoyl group, a (substituted) amino group, or a (substituted) ureido group; 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 代表低级烷氧基、低级烷硫基或卤原子;R2 代表 H、低级烷氧基、低级烷硫基或卤原子;R3 代表低级烷基或低级烯基,可被一个或多个 OH、CN、低级环烷基、(取代的)芳香基团或(取代的)氨基甲酰基取代;R4 代表 COOH、低级烷氧羰基、(取代的)氨基甲酰基、(取代的)氨基或 (取代的)脲基;虚线表示 4 位和 5 位之间的碳-碳键为单键或双键,或其盐类;以及含有它们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。