PROBLEM TO BE SOLVED: To provide a medicine composed of a compound useful for a treating agent or preventing agent against various epileptic seizures such as partial seizures and/or generalized seizures.SOLUTION: The medicine includes the compound represented by formula (I). In the formula: R1, R2 and R3 are each a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, a 1-6C alkyl group, a 1-6C alkoxy group substituted with a fluorine atom, or the like R4 and R5 are each a hydrogen atom, a fluorine atom, a chlorine atom, a 1-6C alkyl group, a 1-6C alkoxy group substituted with a fluorine atom, or the like R6 and R7 are each a hydrogen atom, a fluorine atom, a methyl group, an ethyl group, a hydroxyl group, or the like and R8 and R9 are each a hydrogen atom, a 1-6C alkyl group, or the like.COPYRIGHT: (C)2012,JPO&INPIT【課題】部分発作及び/又は全般発作の種々てんかん発作に対する治療薬若しくは予防薬として有用な化合物からなる医薬の提供。【解決手段】式(I)の化合物からなる医薬[式中R1、R2及びR3は、水素原子、フッ素原子、塩素原子、臭素原子、C1-6アルキル、フッ素原子で置換されたC1-6アルコキシ等を表し、R4及びR5は、水素原子、フッ素原子、塩素原子、C1-6アルキル、フッ素原子で置換されたC1-6アルコキシ等を表し、R6及びR7は、水素原子、フッ素原子、メチル、エチル、水酸基等を表し、R8及びR9は、水素原子、C1-6アルキル等を表す]。【選択図】なし
