Substituted pyrazolopyrimidine derivatives of formula (I)
wherein
Y
1
, Y
2
, Y
3
, Y
4
represent N or C—, whereby at least two of the groups Y
1
to Y
4
represent a carbon atom, R
1
represents chloro or bromo,
R
2
to R
7
represent e.g. hydrogen, methyl or ethyl; and
R
10
and R
11
independently represent e.g. hydrogen or C
1
-C
6
alkyl, are potent mGluR5 modulators and are useful for the prevention of acute and chronic neurological disorders.
式(I)中的取代嘧唑
嘧啶衍
生物,其中Y1、Y2、Y3、Y4代表N或C—,其中至少两个Y1到Y4代表碳原子,R1代表
氯或
溴,R2到R7代表氢、甲基或乙基等,而R10和R11独立地代表氢或C1-C6烷基。这些衍
生物是有效的mGluR5调节剂,并可用于预防急性和慢性神经系统疾病。