The present invention relates to pharmaceutical compositions containing a compound represented by formula (I), or a pharmaceutically acceptable prodrug or salt thereof, or a hydrate or solvate thereof as an active ingredient,
(wherein,
R1, R2, R3, and R4 are the same as R1, R2, R3, and R4 in the description of the present invention).
The present invention relates to compounds represented by formula (I), or pharmaceutically acceptable prodrugs or salts thereof, or hydrates or solvates thereof,
(wherein,
R1, R2, R3, and R4 are the same as R1, R2, R3, and R4 in the description of the present invention).