申请人:——
公开号:US20030100769A1
公开(公告)日:2003-05-29
There is provided cyclic amidine compounds of the following formula (I):
1
wherein:
A
1
and A
2
are hydrogen atom, optionally substituted alkyl group; optionally substituted aryl group; or optionally substituted heterocyclic group; and
X is —C(R
1
,R
2
)—C(R
3
,R
4
)—, —C(R
5
)═C(R
6
)—, —C(R
7
,R
8
)—C(R
9
,R
10
)—C(R
11
,R
12
)—, or —C(R
13
,R
14
)—C(R
15
,R
16
)—NH— (wherein, R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, R
11
, R
12
, R
13
, R
14
, R
15
and R
16
are hydrogen atom; halogen atom; optionally substituted alkyl group; optionally substituted aryl group; or optionally substituted heterocyclic group;
or pharmaceutically acceptable salts thereof.
These compounds have good affinity for &agr;4&bgr;2 nicotinic acetylcholine receptors and activate the same to thereby exert a preventive or therapeutic effect on cerebral dysfunction.
提供了以下式子(I)的环状腙类化合物:1其中:A1和A2为氢原子,可选取代烷基,可选取代芳基或可选取代杂环基;X为—C(R1,R2)—C(R3,R4)—,—C(R5)═C(R6)—,—C(R7,R8)—C(R9,R10)—C(R11,R12)—或—C(R13,R14)—C(R15,R16)—NH—(其中,R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11、R12、R13、R14、R15和R16为氢原子,卤素原子,可选取代烷基,可选取代芳基或可选取代杂环基)或其药学上可接受的盐。这些化合物对α4β2型尼古丁乙酰胆碱受体具有良好的亲和力,并激活该受体,从而对脑功能障碍产生预防或治疗作用。