Provided are a tetracyclic compound represented by the formula (I):
[in the formula (I), the formula (A) represents a benzene ring or the like,
X represents CH or a nitrogen atom,
Q represents —O— or the like,
R
1
, R
2
, and R
3
may be the same or different and each represent a hydrogen atom or the like,
l, m, and n each represent an integer from one to the maximum substitutable number of substituents, and
R
4
and R
5
may be the same or different and each represent a hydrogen atom or the like], or a pharmaceutically acceptable salt thereof, and the like.