申请人:——
公开号:US20030144338A1
公开(公告)日:2003-07-31
A compound of the formula (I):
1
wherein X
1
and X
2
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 R
1
and R
2
is a cycle group having substituent(s) selected from 1) an optionally substituted carboxy-C
1-6
alkoxy group and 2) an optionally substituted carboxy-C
1-6
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
R
3
, R
4
and R
5
are the same or different and each is a hydrogen atom or a substituent, or R
4
may link together with R
3
or R
5
to form an optionally substituted ring;
provided that when R
3
is a hydrogen atom, R
4
is a hydrogen atom and R
5
is methyl, X
2
—R
2
is not 4-cyclohexylphenyl; when R
3
is 4-methoxyphenyl, R
4
is a hydrogen atom and R
5
is methyl, X
2
—R
2
is not 4-methoxyphenyl; and when R
1
or R
2
is a hydrogen atom, the adjacent X
1
or X
2
is not a C
1-7
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.
化合物的公式(I):其中X1和X2相同或不同,每个都是一个键或具有1至20个原子的主链间隔物;R1和R2中的一个是具有取代基的环基团,所述取代基选择自1)可选取代的羧基-C1-6烷氧基和2)可选取代的羧基-C1-6脂肪烃基,其中所述环基团可选地具有其他取代基;另一个是可选取代的环基团或氢原子;以及R3、R4和R5相同或不同,每个都是氢原子或取代基,或者R4可以与R3或R5连接以形成可选取代的环;条件是当R3为氢原子,R4为氢原子且R5为甲基时,X2-R2不是4-环己基苯基;当R3为4-甲氧基苯基,R4为氢原子且R5为甲基时,X2-R2不是4-甲氧基苯基;当R1或R2为氢原子时,相邻的X1或X2不是C1-7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。