申请人:Takeda Chemical Industries, Ltd.
公开号:EP1284260A1
公开(公告)日:2003-02-19
A compound of the formula (I):
wherein X1 and X2 are the same or different and each is a bond or a spacer having 1 to 20 atom(s) in the main chain;
one of R1 and R2 is a cycle group having substituent(s) selected from 1) an optionally substituted carboxy-C1-6 alkoxy group and 2) an optionally substituted carboxy-C1-6 aliphatic hydrocarbon group, wherein the cycle group optionally has additional substituent(s), and the other is an optionally substituted cycle group or a hydrogen atom; and
R3, R4 and R5 are the same or different and each is a hydrogen atom or a substituent, or R4 may link together with R3 or R5 to form an optionally substituted ring;
provided that when R3 is a hydrogen atom, R4 is a hydrogen atom and R5 is methyl, X2-R2 is not 4-cyclohexylphenyl; when R3 is 4-methoxyphenyl, R4 is a hydrogen atom and R5 is methyl, X2-R2 is not 4-methoxyphenyl; and when R1 or R2 is a hydrogen atom, the adjacent X1 or X2 is not a C1-7 alkylene;
or a salt thereof exhibits a protein tyrosine phosphatase inhibitory action and is useful as a prophylactic or therapeutic agent for diabetes or the like.
式(I)化合物:
其中 X1 和 X2 相同或不同,且各自为键或在主链中具有 1 至 20 个原子的间隔物;
R1 和 R2 中的一个是具有选自 1)任选取代的羧基-C1-6 烷氧基和 2)任选取代的羧基-C1-6 脂肪族烃基的取代基的循环基团,其中循环基团任选具有附加取代基,另一个是任选取代的循环基团或氢原子;以及
R3、R4 和 R5 相同或不同,且各自为氢原子或取代基,或 R4 可与 R3 或 R5 连接形成任选取代的环;
条件是当 R3 是氢原子、R4 是氢原子且 R5 是甲基时,X2-R2 不是 4-环己基苯基;当 R3 是 4-甲氧基苯基、R4 是氢原子且 R5 是甲基时,X2-R2 不是 4-甲氧基苯基;以及当 R1 或 R2 是氢原子时,相邻的 X1 或 X2 不是 C1-7 亚烷基;
或其盐具有蛋白酪氨酸磷酸酶抑制作用,可用作糖尿病或类似疾病的预防或治疗剂。