The present invention addresses the problem of providing a tricin derivative having higher antiviral activity. The compound according to the present invention is a compound represented by formula (I) or a salt thereof.
(In formula (I), at least one of R
1
-R
5
represents a fluorine atom, and the rest of R
1
-R
5
, which are not fluorine atoms, represent a hydrogen atom or a hydroxy group.)
本发明解决了提供具有更高抗病毒活性的
三环素衍
生物的问题。根据本发明的化合物是由式(I)表示的化合物或其盐。(在式(I)中,R1-R5中至少一个表示
氟原子,其余的R1-R5不是
氟原子的表示氢原子或羟基。)