申请人:Kiso, Yoshiaki
公开号:EP2168947A1
公开(公告)日:2010-03-31
A novel compound represented by the formula (1) below which has β-secretase inhibitory activity, its pharmaceutically acceptable salt or a prodrug thereof.
wherein Ar is a substituted or unsubstituted 5 to 6 membered mono cyclic aromatic group; R1, R2 and R3 are hydrogen atom, substituted or unsubstituted alkyl group or the like, or R2 and R3 may be taken together with the adjacent nitrogen atom and carbon atom respectively to form a 3 to 6 membered ring; R4 is C1-6 alkyl group, C1-6 alkyl group substituted by phenyl, phenylthio, or a hetero ring, or the like;
A is represented by the formula below:
wherein X and Y are oxygen atom, NH or sulfur atom, Z is hydrogen atom, hydroxy group which may be substituted, amino group, thiol group, or the like; and B is hydroxy group, substituted or unsubstituted amino group, substituted or unsubstituted aliphatic or aromatic amino group, or the like.
下面的公式(1)表示的一种新化合物具有β-分泌酶抑制活性,其药用可接受的盐或其前药。其中Ar是取代或未取代的5至6个成员单环芳香基团;R1、R2和R3是氢原子,取代或未取代的烷基或类似物,或R2和R3可以分别与相邻的氮原子和碳原子结合形成3至6个成员环;R4是C1-6烷基,C1-6烷基被苯基,苯硫基或杂环取代,或类似物取代;A由以下公式表示:其中X和Y是氧原子,NH或硫原子,Z是氢原子,可被取代的羟基,氨基,硫醇基等;B是羟基,取代或未取代的氨基,取代或未取代的脂肪或芳香氨基,或类似物。