发明授权
EP0383281B1 1,2-ethanediol derivative and salt thereof, process for producing the same, and cerebral function-improving agent comprising the same 失效
1,2- Ethandiolderivate和它们的盐,它们的制备方法和含有它们的组合物的方法,脑功能改善剂。

1,2-ethanediol derivative and salt thereof, process for producing the same, and cerebral function-improving agent comprising the same
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