申请人:Kowa Co., Ltd.
公开号:US06403586B1
公开(公告)日:2002-06-11
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-1&bgr; production, and are useful as preventives and therapeutics for immune system diseases, inflammatory diseases, ischemic diseases and the like.
这项发明涉及由式(1)表示的吡啶嗪衍生物:
其中R1代表较低的烷氧基团、较低的烷硫基团或卤原子;R2代表H、较低的烷氧基团、较低的烷硫基团或卤原子;R3代表较低的烷基或较低的烯基,可以被一个或多个OH、CN、较低的环烷基、(取代的)芳香基或(取代的)氨基甲酰基取代;R4代表COOH、较低的烷氧羰基团、(取代的)氨基甲酰基、(取代的)氨基团或(取代的)脲基;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的产生具有出色的抑制活性,并可用作免疫系统疾病、炎症性疾病、缺血性疾病等的预防和治疗药物。