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.
式(I)的化合物:
其中X1和X2相同或不同,每个都是主链中具有1至20个原子的键或间隔物;
R1和R2中的一个是具有取代基的环基,所述取代基选自1)可选择地取代的羧基-C1-6烷氧基和2)可选择地取代的羧基-C1-6脂肪烃基,其中所述环基可选择地具有额外的取代基,另一个是可选择地取代的环基或氢原子;以及
R3、R4和R5相同或不同,每个是氢原子或取代基,或R4可以与R3或R5结合形成可选择地取代的环;
但是当R3是氢原子时,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;当R1或R2是氢原子时,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,并且可用作糖尿病等疾病的预防或治疗剂。