申请人:Daiichi Sankyo Company, Limited
公开号:US10925848B2
公开(公告)日:2021-02-23
An object of the present invention is to find a novel pharmaceutical that has an excellent tryptophanase inhibitory effect, and suppresses worsening of renal function to preserve the kidney by reducing production of indoxyl sulfate in the blood. Provided is a pharmaceutical composition containing, as an active ingredient, a compound represented by formula (I) or a pharmacologically acceptable salt thereof. In the formula (I), R1 and R2 are the same or different, and represent a C1-C6 alkyl group, a halogeno C1-C6 alkyl group or a C3-C6 cycloalkyl group; n represents 0, 1 or 2; each X represents a C1-C6 alkyl group, a C3-C6 cycloalkyl group, a halogen atom or the like; and Y represents a hydrogen atom, a C1-C6 alkoxy group, a C3-C6 cycloalkoxy group or a halogeno C1-C6 alkoxy group.
本发明的目的是找到一种新型药物,它具有极佳的色氨酸酶抑制作用,并通过减少血液中吲哚硫酸酯的产生来抑制肾功能恶化,从而保护肾脏。本发明提供了一种药物组合物,其活性成分含有式(I)代表的化合物或其药理学上可接受的盐。在式 (I) 中,R1 和 R2 相同或不同,代表 C1-C6 烷基、卤代 C1-C6 烷基或 C3-C6 环烷基;n 代表 0、1 或 2;每个 X 代表 C1-C6 烷基、C3-C6 环烷基、卤原子或类似物;Y 代表氢原子、C1-C6 烷氧基、C3-C6 环烷氧基或卤代 C1-C6 烷氧基。