申请人:Hirata Kazuyuki
公开号:US20080064871A1
公开(公告)日:2008-03-13
[Problems] The present invention provides a superior production method and a superior purification method of compounds effective for the treatment or prophylaxis of pathology showing involvement of uric acid, such as hyperuricemia, gouty tophus, acute gouty arthritis, chronic gouty arthritis, gouty kidney, urolithiasis, renal function disorder, coronary artery disease, ischemic heart disease and the like.
[Means] A compound represented by the following formula [2] or a pharmaceutically acceptable salt thereof can be produced by reacting a compound represented by the following formula [3] or a salt thereof with a compound represented by the following formula [4], a salt thereof or a reactive derivative thereof. Moreover, crystallization of a compound represented by the formula [2] can be performed with industrially superior workability, and high quality crystals of a compound represented by the formula [2] can be obtained.
wherein each symbol is as defined in the description.
本发明提供了一种优越的化合物生产方法和优越的纯化方法,用于治疗或预防涉及尿酸的病理学,如高尿酸血症、痛风石、急性痛风性关节炎、慢性痛风性关节炎、痛风性肾脏、尿路结石、肾功能障碍、冠状动脉疾病、缺血性心脏病等。
[手段] 通过将以下式[3]所代表的化合物或其盐与以下式[4]所代表的化合物、其盐或其反应衍生物反应,可以制备以下式[2]所代表的化合物或其药用可接受的盐。此外,可以以工业上优越的可操作性进行以下式[2]所代表的化合物的结晶,并且可以获得以下式[2]所代表的化合物的高质量晶体。
其中每个符号如描述中所定义。