申请人:Furukawa Akihiro
公开号:US20090036492A1
公开(公告)日:2009-02-05
The present invention relates to a novel cercosporamide derivative, a pharmacologically acceptable salt thereof or an ester thereof which has an excellent hypoglycemic effect and is useful as a therapeutic and/or prophylactic agent for diabetes.
A cercosporamide derivative having the general formula (I):
[wherein X represents an oxygen atom or the like, R
1
represents a hydrogen atom or a C
1
-C
6
alkyl group, R
2
represents a hydrogen atom, a C
1
-C
6
alkyl group or a C
1
-C
6
halogenated alkyl group, R
3
represents a hydrogen atom or a C
1
-C
6
alkyl group, R
4
represents a C
6
-C
10
aryl group which may be substituted with one to five group(s) independently selected from Substituent Group a, or the like, n represents 1, 2 or 3, and Substituent Group a represents a halogen atom, a C
1
-C
6
alkyl group, a C
1
-C
6
halogenated alkyl group, a C
2
-C
6
alkenyl group, a C
2
-C
6
alkynyl group, a C
1
-C
6
alkoxy group, a C
1
-C
6
halogenated alkoxy group, a C
2
-C
6
alkenyloxy group, a C
2
-C
6
alkynyloxy group and the like], a pharmacologically acceptable salt thereof or an ester thereof.
本发明涉及一种新型的环孢霉素衍生物,其具有优异的降血糖作用,可作为糖尿病治疗和/或预防制剂使用的药物学上可接受的盐或酯。
具有以下通式(I)的环孢霉素衍生物:
[其中,X代表氧原子或类似物,R1代表氢原子或C1-C6烷基,R2代表氢原子、C1-C6烷基或C1-C6卤代烷基,R3代表氢原子或C1-C6烷基,R4代表C6-C10芳基,该芳基可被一个到五个独立选择的取代基a取代,n代表1、2或3,取代基a代表卤原子、C1-C6烷基、C1-C6卤代烷基、C2-C6烯基、C2-C6炔基、C1-C6烷氧基、C1-C6卤代烷氧基、C2-C6烯氧基、C2-C6炔氧基等],其药学上可接受的盐或酯。