申请人:Takamuro Iwao
公开号:US20060135525A1
公开(公告)日:2006-06-22
The present invention provides a novel pyrazolopyrimidine compound of the formula [I]: wherein R′ is (A) a substituted aryl group, (B) an optionally substituted nitrogen-containing aliphatic heteromonocyclic group, (C) a substituted cyclo-lower alkyl group, (D) an optionally substituted amino group, or (E) a substituted heteroaryl group, R
2
is (a) an optionally substituted heteroaryl group or (b) an optionally substituted aryl group, Y is a single bond, a lower alkylene group or a lower alkenylene group, Z is a group of the formula: —CO—, —CH2-, S02- or a group of the formula [II]: Q is a lower alkylene group, and q is an integer of 0 or 1 or a pharmaceutically acceptable sait thereof, which has a small conductance potassium channel (SK channel) blocking activity and is useful as a medicament and a process for preparing the same.
本发明提供了一种新型的吡唑嘧啶化合物,其化学式为[I]:其中R′为(A)取代芳基,(B)可选取代的含氮脂肪杂环基,(C)取代的环低烷基,(D)可选取代的氨基或(E)取代的杂环芳基;R2为(a)可选取代的杂环芳基或(b)可选取代的芳基;Y为单键,低碳基烷基或低碳基烯基;Z为式[II]的基团:其中Q为低碳基烷基,q为0或1的整数,或其药学上可接受的盐。该化合物具有小电导钾通道(SK通道)阻滞活性,并可作为药物使用,以及其制备方法。