申请人:Shionogi & Co., Ltd.
公开号:US05677305A1
公开(公告)日:1997-10-14
An oxopyridinylquinoxaline derivative represented by the following Formula I or pharmaceutically acceptable salts thereof: ##STR1## wherein R.sup.1 is hydrogen, halogen, nitro, or trihalomethyl; R.sup.2 is hydrogen, halogen, nitro, cyano, trihalomethyl, carbamoyl, carbamoyl substituted with lower alkyl, sulfamoyl, or sulfamoyl substituted with lower alkyl; R.sup.3 is hydrogen, nitro, or halogen; R.sup.4 is hydrogen, lower alkyl, substituted lower alkyl, lower cycloalkyl, or substituted lower cycloalkyl; R.sup.5 's are substituents independently selected from the group consisting of halogen, nitro, cyano, lower alkyl, carbamoyl, and carbamoyl substituted with lower alkyl; and n is an integer of 0 to 4. The derivative works as an antagonistic agent against both the NMDA receptors and the AMPA receptors, so that it is effective as a therapeutic agent for neurological disorders caused by excitatory amino acids binding to the receptors.
一种由以下化学式I表示的氧吡啶基喹喔啉衍生物或其药用盐:##STR1##其中R.sup.1为氢、卤素、硝基或三卤甲基;R.sup.2为氢、卤素、硝基、氰基、三卤甲基、氨基甲酰基、带有较低烷基取代的氨基甲酰基、磺胺基或带有较低烷基取代的磺胺基;R.sup.3为氢、硝基或卤素;R.sup.4为氢、较低烷基、取代的较低烷基、较低环烷基或取代的较低环烷基;R.sup.5'为从卤素、硝基、氰基、较低烷基、氨基甲酰基和带有较低烷基取代的氨基甲酰基组成的基团中独立选择的取代基;n为0到4的整数。该衍生物作为对NMDA受体和AMPA受体的拮抗剂,因此对由兴奋性氨基酸结合到受体引起的神经系统疾病具有治疗作用。