申请人:——
公开号:US20040110826A1
公开(公告)日:2004-06-10
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}
本发明提供一种α2c-肾上腺素受体拮抗剂,其包括以下通式(I)所代表的紧缩环嘧啶衍生物或其药学上可接受的盐作为活性成分,用于治疗和/或预防由α2c-肾上腺素受体过度活跃引起的各种疾病(例如帕金森病、L-多巴诱导的运动障碍、迟发性运动障碍和抑郁症)等。
其中,p表示1到3的整数;
R1代表取代或未取代的杂环基团、取代或未取代的芳基等;
R2代表—N(—R4)(—R5)(其中R4和R5相同或不同,每个代表氢原子、取代或未取代的芳基烷基等,或R4和R5与相邻氮原子一起形成取代或未取代的杂环基团)等;以及
-Q-代表—NHC(—R7)— [其中R7代表—N(—R9)(—R10)(其中R9和R10相同或不同,每个代表取代或未取代的芳基烷基等,或R9和R10与相邻氮原子一起形成取代或未取代的杂环基团)等]等。