The present invention provides an &agr;
2c
-adrenoceptor antagonist comprising, as an active ingredient, a condensed-ring-pyrimidine derivative represented by general formula (I) below or a pharmaceutically acceptable salt thereof useful for treating and/or preventing various diseases induced by hyperactivity of &agr;
2c
-adrenoceptor (for example, Parkinson's disease, L-DOPA-induced dyskinesia, tardive dyskinesia and depression) and the like.
1
{wherein p represents an integer of
1
to
3;
R
1
represents a substituted or unsubstituted heterocyclic group, substituted or unsubstituted aryl, or the like;
R
2
represents —N(—R
4
)(—R
5
) (wherein R
4
and R
5
are the same or different, and each represents a hydrogen atom, substituted or unsubstituted aralkyl, or the like, or R
4
and R
5
form a substituted or unsubstituted heterocyclic group together with the adjacent nitrogen atom) or the like; and
-Q- represents —N═C(—R
7
)— [wherein R
7
represents —N(—R
9
)(—R
10
) (wherein R
9
and R
10
are the same or different, and each represents substituted or unsubstituted aralkyl, or the like, or R
9
and R
10
form a substituted or unsubstituted heterocyclic group together with the adjacent nitrogen atom) or the like] or the like}
A new series of [1,2,4]triazolo[1,5-c]pyrimidines was investigated at position 2 to obtain potent and selective A3 #adenosine receptor antagonists. #Docking studies were performed to rationalize these results, particularly with respect to selectivity. The best compound in the series was then tested on #cancer cell lines expressing the target receptor and showed an interesting proliferative effect.
在2位上研究了一系列新的[1,2,4]三唑并[1,5- c ]嘧啶以获得有效且选择性的A 3 #腺苷受体拮抗剂。 #对接研究是为了合理化这些结果,特别是在选择性方面。然后,该系列中最好的化合物在表达目标受体的癌细胞系上进行了测试,并显示出有趣的增殖作用。
RECEPTOR ANTAGONIST
申请人:KYOWA HAKKO KOGYO CO., LTD.
公开号:EP1430898A1
公开(公告)日:2004-06-23
The present invention provides an α2c-adrenoceptor antagonist comprising, as an active ingredient, a condensed-ring-pyrimidine derivative represented by general formula (I) below or a pharmaceutically acceptable salt thereof useful for treating and/or preventing various diseases induced by hyperactivity of α2c-adrenoceptor (for example, Parkinson's disease, L-DOPA-induced dyskinesia, tardive dyskinesia and depression) and the like.
wherein p represents an integer of 1 to 3;
R1 represents a substituted or unsubstituted heterocyclic group, substituted or unsubstituted aryl, or the like;
R2 represents -N(-R4)(-R5) (wherein R4 and R5 are the same or different, and each represents a hydrogen atom,
substituted or unsubstituted aralkyl, or the like, or R4 and R5 form a substituted or unsubstituted heterocyclic group together with the adjacent nitrogen atom) or the like; and
-Q- represents -N=C(-R7)- [wherein R7 represents -N(-R9) (-R10) (wherein R9 and R10 are the same or different, and each represents substituted or unsubstituted aralkyl, or the like, or R9 and R10 form a substituted or unsubstituted heterocyclic group together with the adjacent nitrogen atom) or the like] or the like}