| abstract |
[Problem] To provide a medicament for inducing TFF production and used for treatment and / or prevention of various diseases such as gastrointestinal diseases, oral diseases, upper respiratory diseases, respiratory diseases, eye diseases, cancer, and wounds. SOLUTION: General formula (1) [Wherein, A represents a direct bond, a lower alkylene group or a lower alkylidene group, X represents an oxygen atom or a sulfur atom, R 1 represents a hydrogen atom, R 2 represents a hydrogen atom, R 3 represents a hydrogen atom, etc. Show. n shows the integer of 0-7. Or a salt thereof. [Selection figure] None |