The invention relates to pyrazolopyrimidine derivatives of Formula I
wherein
R1 represents chloro or bromo;
A represents
as well as their pharmaceutically acceptable salts. The invention further relates to a process for the preparation of such compounds. The compounds of the invention are mGluR5 modulators and are therefore useful for the control and prevention of acute and/or chronic neurological disorders.
本发明涉及以下式子的
吡唑嘧啶衍
生物(I):
其中R1代表
氯或
溴;
A代表
以及其药学上可接受的盐。本发明还涉及制备这种化合物的方法。本发明的化合物是mGluR5调节剂,因此对于控制和预防急性和/或慢性神经系统疾病有用。