申请人:Yamanouchi Pharmaceutical Co., Ltd.
公开号:US06133258A1
公开(公告)日:2000-10-17
Neuroprotective agents based on inhibition of kainic acid neurotoxicity and compounds useful as neuroprotective agents based on inhibition of kainic acid neurotoxicity. An inhibitors of kainic acid neurotoxicity, comprising as an active ingredient a pyridothiazine derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof, and a pyridothiazine derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein symbols in the formula have the following respective meanings: the ring A: a pyridine ring; ##STR2## R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may be the same or different and each represent a hydrogen atom or a lower alkyl, cycloalkyl, alkenyl, aryl, carboxyl or lower alkoxycarbonyl group which may have substituent(s), or are not present, with the proviso that R.sup.2 and R.sup.3 may together form a nitrogen-containing heterocyclic group which may have nitrogen atoms as another hetero atom, may be fused with a benzene ring and may have a lower alkyl group as a substituent.
基于抑制凯尼酸神经毒性的神经保护剂和作为神经保护剂的化合物。一种凯尼酸神经毒性抑制剂,包括以下通式(I)所代表的吡啶噻唑衍生物或其药学上可接受的盐作为活性成分,以及以下通式(I)所代表的吡啶噻唑衍生物或其药学上可接受的盐:##STR1## 其中,公式中的符号具有以下各自的含义:环A:吡啶环;##STR2## R.sup.1,R.sup.2,R.sup.3,R.sup.4和R.sup.5可以相同也可以不同,每个代表氢原子或低碳基,环烷基,烯基,芳基,羧基或低碳基氧羰基基团,这些基团可能具有取代基或不存在,但须遵守R.sup.2和R.sup.3可以共同形成含氮杂环基团,该杂环基团可以具有氮原子作为另一杂原子,可以与苯环融合,并且可以具有低碳基团作为取代基的规定。