Drugs for treating respiratory diseases

摘要

It is intended to provide a therapeutic agent and/or a preventive agent for a respiratory disease or a therapeutic agent and/or a preventive agent for a sodium channel associated disease. The present invention provides a pharmaceutical comprising a compound represented by the following formula (I) or a pharmacologically acceptable salt thereof as an active ingredient:;Ar1 and Ar2: a heteroaryl group or an aryl group; R1, R2 and R3: a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group or a C3-C7 cycloalkyl group or a cyano group; R4 and R5: a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group or a C1-C6 alkoxy group;n: an integer of 1 to 3; andthe heteroaryl or aryl group optionally has one or two groups independently selected from a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group, a carboxyl group, a cyano group, an amino group, a C1-C3 alkylamino group and a di-C1-C3 alkylamino group, and when the heteroaryl or aryl group has two such groups, the two groups are the same as or different from each other.

主权项

1. A method of suppressing a cough, comprising administering a pharmacologically effective amount of a compound of formula (I):or a pharmacologically acceptable salt thereof,
to a mammal, wherein Ar1 and Ar2 are each independently a heteroaryl group or an aryl group, R1, R2 and R3 are each independently a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group or a cyano group, R4 and R5 are each independently a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group or a C1-C6 n is an integer of 1 to 3, and the heteroaryl or aryl group is optionally substituted with one or two substituents independently selected from a halogen atom, a C1-C6 alkyl group, a halogenated C1-C6 alkyl group, a hydroxyl group, a hydroxy C1-C6 alkyl group, a C1-C6 alkoxy C1-C6 alkyl group, a C3-C7 cycloalkyl group, a carboxy group, a cyano group, an amino group, a C1-C3 alkylamino group and a di-C1-C3 alkylamino group, and when two such groups are present in the heteroaryl or aryl group, the two may be the same as, or different from, each other.