The invention relates to pyrazolopyrimidine derivatives of formula (I)
wherein
Y
1
, Y
2
and Y
3
independently are e.g. CR
10
, NH, S or O,
whereby at least one of Y
1
, Y
2
and Y
3
represents CR
10
;
R
1
represents chloro or bromo;
R
2
, R
3
, R
4
, R
5
, R
6
and R
7
represent e.g. hydrogen or C
1
-C
6
-alkyl, and
R
10
represents e.g. hydrogen, halogen or phenyl; which are potent mGluR5 modulators and are e.g. useful for the treatment of various neurological disorders.
本发明涉及式(I)的
吡唑并
嘧啶衍
生物,其中Y1、Y2和Y3独立地是例如CR10、NH、S或O,其中至少一个Y1、Y2和Y3代表CR10;R1代表
氯或
溴;R2、R3、R4、R5、R6和R7代表例如
氢或C1-C6烷基,而R10代表例如
氢、卤素或
苯基。这些化合物是有效的mGluR5调节剂,例如用于治疗各种神经系统疾病。