The present invention provides a carbostyril compound represented by General Formula (1)
or a salt thereof, wherein A is a direct bond, a lower alkylene group, or a lower alkylidene group; X is an oxygen atom or a sulfur atom; R
4
and R
5
each represent a hydrogen atom; the bond between the 3 and 4 positions of the carbostyril skeleton is a single bond or a double bond; R
1
is a hydrogen atom, etc; R
2
is a hydrogen atom, etc; and R
3
is a hydrogen atom, etc. The carbostyril compound or salt thereof of the present invention induces the production of TFF, and thus is usable for the treatment and/or prevention of disorders such as alimentary tract diseases, oral diseases, upper respiratory tract diseases, respiratory tract diseases, eye diseases, cancers, and wounds.
本发明提供了一种由通式(1)表示的
碳基
噻吩化合物或其盐,其中A是直接键,较低的烷基烷基或较低的烷基亚烷基;X是
氧原子或
硫原子;R4和R5分别表示
氢原子;
碳基
噻吩骨架的3和4位之间的键是单键或双键;R1是
氢原子等;R2是
氢原子等;R3是
氢原子等。本发明的
碳基
噻吩化合物或其盐能够诱导TFF的产生,因此可用于治疗和/或预防消化道疾病、口腔疾病、上呼吸道疾病、呼吸道疾病、眼部疾病、癌症和伤口等疾病。