A method of controlling damage to the central nervous system of a patient which comprises administering to such patient a central nervous system-controlling effective amount of a pyridine derivative of the formula ##STR1## in which R is an optionally substituted aryl or heterocyclic radical, R.sup.1 and R.sup.2 are hydrogen or various organic radicals, X and Y are CN, --CO--R.sup.3, --COOR.sup.4 or --SO.sub.2 R.sup.5, or form with R.sup.1 or R.sup.2 a carbonyl-containing ring, R.sup.3 is an alkyl, aryl or aralkyl radical, R.sup.4 is hydrogen or an organic radical, and R.sup.5 is an optionally substituted alkyl or phenyl radical, or a salt thereof.
一种控制患者中枢神经系统损伤的方法,包括向该患者施用一种具有中枢神经系统控制有效量的
吡啶衍生物,该
吡啶衍生物的
化学式为##STR1##其中R是可选取的取代芳基或杂环基团,R.sup.1和R.sup.2是氢或各种有机基团,X和Y是CN,--CO--R.sup.3,--COOR.sup.4或--SO.sub.2 R.sup.5,或与R.sup.1或R.sup.2形成含有羰基的环,R.sup.3是烷基,芳基或芳烷基,R.sup.4是氢或有机基团,R.sup.5是可选取的取代烷基或苯基团,或其盐。