P2X4 RECEPTOR ANTAGONIST

摘要

A compound represented by the following general formula (II) or a pharmacologically acceptable salt thereof is used as a P2X4 receptor antagonist: (II) wherein R11 represents a hydrogen atom or a C1-8 alkyl group; R21 represents a C1-8 alkyl group, a C1-8 alkoxy group, a C1-8 alkyl group substituted by 1 to 3 halogen atoms or a hydroxyl group; and R31 represents a hydrogen or halogen atom.