The present invention relates to an agent for treating nephritis and a TGF-β inhibiting agent comprising as an effective ingredient a pyridylacrylamide derivative represented by the following formula (I):
wherein Ar1 is a substituted or unsubstituted pyridyl group, Ar2 is a substituted or unsubstituted phenyl group, R1 is a hydrogen atom, an alkyl group or an aryl group, R2 is a hydrogen atom, an alkyl group, a cyano group or an alkoxycarbonyl group, R3 is a hydrogen atom or an optionally substituted alkyl group, X is an oxygen or sulfur atom. A and B are same or different and each represent a hydrogen atom, a hydroxyl group, an alkoxy group or an alkylthio group, or A and B together form an oxo or thioxo group, or a group represented by the formula: =N-Y in which Y is a dialkylamino, hydroxyl, aralkyloxy or alkoxy group, or a group represented by the formula: -Z1-M-Z2- in which Z1 and Z2 are same or different and each represent an oxygen or sulfur atom or an imino group optionally substituted by an alkyl group, and M is an alkylene group or a 1,2-phenylene group, or A is a hydroxyl group and B is a 1-alkylimidazol-2-yl group, and n is an integer of 1 to 3,
or a pharmaceutically acceptable salt thereof; as well as the pyridylacrylamide derivatives.
本发明涉及一种治疗肾炎的制剂和一种 TGF-β
抑制剂,其有效成分包括下式 (I) 所代表的
吡啶丙烯酰胺衍
生物:
其中 Ar1 是取代或未取代的
吡啶基,Ar2 是取代或未取代的
苯基,R1 是
氢原子、烷基或芳基,R2 是
氢原子、烷基、
氰基或烷
氧羰基,R3 是
氢原子或任选取代的烷基,X 是
氧原子或
硫原子。A 和 B 相同或不同,各自代表一个
氢原子、一个羟基、一个烷
氧基或一个烷
硫基,或 A 和 B 共同形成一个
氧代或
硫代基团,或一个由式:=N-Y 所代表的基团,其中 Y 是一个二烷基
氨基、羟基、芳
氧基或烷
氧基,或一个由式: -Z1-M-Z2- 所代表的基团,其中 Y 是一个二烷基
氨基、羟基、芳
氧基或烷
氧基:-Z1-M-Z2-,其中 Z1 和 Z2 相同或不同,且各自代表
氧原子或
硫原子或任选被烷基取代的亚
氨基,M 为亚烷基或 1,2-亚
苯基,或 A 为羟基,B 为 1-烷基
咪唑-2-基,n 为 1 至 3 的整数、
或其药学上可接受的盐;以及
吡啶丙烯酰胺衍
生物。