The present invention is a pyrimidine, triazine or pyrazine derivative of the formula
1
or a pharmaceutically acceptable salt thereof wherein R
1
, R
2
, R
3
, R
4
, X, Y and Z are as defined in the specification. The invention is a pharmaceutical composition containing an effective amount of the compound of formula 1, its preparation and to a method of treatment, control or prevention of acute and/or chronic neurological disorders by administering a therapeutically effective amount of a compound of formula 1.
本发明是一种
嘧啶、三嗪或
吡嗪衍
生物的
化学式1或其药用盐,其中R1、R2、R3、R4、X、Y和Z如规范中定义。该发明是一种含有
化学式1化合物的有效量的药物组合物,以及其制备方法和通过给予
化学式1化合物的治疗有效量来治疗、控制或预防急性和/或慢性神经系统疾病的方法。