The present invention is concerned with novel pyrazine 2-carboxyamide derivatives of formula (I)
wherein R
1
, R
2
and R
3
are as defined in the specification. These compounds are useful for the treatment of CNS disorders.
本发明涉及式(I)的新型
吡嗪2-羧
酰胺衍
生物,其中R1,R2和R3如规范中所定义。这些化合物对于治疗中枢神经系统疾病是有用的。