申请人:KYOWA HAKKO KOGYO KABUSHIKI KAISHA
公开号:EP0919233A1
公开(公告)日:1999-06-02
Disclosed is a therapeutic agent for renal disease comprising a quinazoline derivative represented by formula (I):
(wherein R1 represents hydrogen, lower alkyl, alkenyl, or aralkyl; R2, R3, R4, and R5 are the same or different and represent hydrogen, lower alkyl, lower alkoxy, lower alkanoyl, or the like; R6, R7, R8, and R9 are the same or different and represent hydrogen, lower alkyl, lower alkoxy, aralkyloxy, or lower alkanoyloxy, or the like, or any adjoining two of them are combined to form methylenedioxy or the like; R10 represents hydrogen, lower alkyl, or the like; R11 and R12 are the same or different and represent hydrogen, lower alkyl, cycloalkyl, phenyl, or aralkyl, or R11 and R12 are combined together to form a heterocyclic group containing nitrogen atom; and n represents 0, 1 or 2) and pharmaceutically acceptable salts thereof as an active ingredient.
This therapeutic agent is useful for the prevention or treatment of renal diseases such as nephritis and diabetic nephropathy.
本发明公开了一种治疗肾病的药物,该药物包含由式(I)代表的
喹唑啉衍
生物:
(其中R1代表氢、低级烷基、烯基或芳烷基;R2、R3、R4和R5相同或不同,代表氢、低级烷基、低级烷氧基、低级烷酰基或类似物;R6、R7、R8和R9相同或不同,代表氢、低级烷基、低级烷氧基、芳烷氧基或低级烷酰氧基或类似物,或其中任意相邻的两个结合成亚甲基二氧基或类似物;R10 代表氢、低级烷基或类似物;R11 和 R12 相同或不同,代表氢、低级烷基、环烷基、苯基或芳烷基,或 R11 和 R12 结合在一起形成含氮原子的杂环基团;n 代表 0、1 或 2)及其药学上可接受的盐类作为活性成分。
这种治疗剂可用于预防或治疗肾炎和糖尿病肾病等肾脏疾病。