申请人:Gomi Noriaki
公开号:US20100324091A1
公开(公告)日:2010-12-23
A pyrazolone derivative represented by formula (I) below:
wherein R
1
to R
3
are the same as defined in claims; or an optical isomer, a pharmaceutically acceptable salt thereof, or a hydrate or solvate thereof is provided. The novel pyrazolone derivative according to the present invention has a PAI-1 production inhibitory activity, a tissue fibrosis inhibitory activity, and a fibrolytic activity, and is effective for preventing and/or treating tissue fibrotic diseases (lung fibrosis, kidney fibrosis, etc.) and diseases of which a pathological thrombus becomes the cause, such as ischemic cardiac diseases (cardiac infarction and angina pectoris), atrial thrombus, lung embolism, deep thrombophlebitis, disseminated intravascular clotting, ischemic brain diseases (brain infarction, brain hemorrhage), and arterial sclerosis. In addition, a pharmaceutical agent for preventing and/or treating the disease conditions or the symptoms mediated by plasminogen activator inhibitor-1, comprising the novel pyrazolone derivative according to the present invention is also provided.
本发明提供了一种由以下式(I)表示的吡唑酮衍生物:其中,R1至R3与权利要求中定义的相同;或其光学异构体、药学上可接受的盐或其水合物或溶剂化物。根据本发明,这种新型的吡唑酮衍生物具有PAI-1生产抑制活性、组织纤维化抑制活性和纤溶活性,对于预防和/或治疗组织纤维化疾病(肺纤维化、肾脏纤维化等)以及由病理性血栓引起的疾病(缺血性心脏病(心肌梗死和心绞痛)、心房血栓、肺栓塞、深静脉血栓性炎症、弥漫性血管内凝血、缺血性脑疾病(脑梗死、脑出血)和动脉硬化)非常有效。此外,本发明还提供了一种用于预防和/或治疗由纤溶酶原激活剂抑制物-1介导的疾病状况或症状的药物制剂,其包括根据本发明的新型吡唑酮衍生物。