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kainic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kainic酸神经毒性抑制剂,包括以下通式(I)所代表的吡啶噻嗪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)所代表的吡啶噻嗪衍生物或其药学上可接受的盐:##STR1## 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,每个代表氢原子或较低的烷基、环烷基、烯烃基、芳基、羧基或较低的烷氧羰基基团,这些基团可能带有取代基,或者不存在,但需注意R.sup.2和R.sup.3可以共同形成含氮的杂环基团,该基团可能含有氮原子作为另一种杂原子,可能与苯环融合,并且可能具有较低的烷基基团作为取代基。