A compound having the following formula (II) or its pharmacologically acceptable salt is used as a P2X
4
receptor antagonist:
in which
R
11
represents hydrogen or an alkyl group having 1-8 carbon atoms;
R
21
represents an alkyl group having 1-8 carbon atoms, an alkoxy group having 1-8 carbon atoms, an alkyl group having 1-8 carbon atoms and having 1-3 halogen substituents, or hydroxyl; and
R
31
is hydrogen or a halogen atom.
具有以下式子(II)或其药理学上可接受的盐的化合物用作P2X4受体
拮抗剂:
其中,
R11代表
氢或具有1-8个
碳原子的烷基;
R21代表具有1-8个
碳原子的烷基,具有1-8个
碳原子的烷
氧基,具有1-3个卤素取代基的1-8个
碳原子的烷基,或羟基;
R31为
氢或卤素原子。