| abstract |
A compound represented by the general formula (I):n nwherein R 1 is a hydrogen atom, a halogen atom, or the like; R 2 , R 3 , and R 4 are each independently a hydrogen atom, a halogen atom, C1-C15 alkyl optionally substituted with one or more C1-C12 alkyloxy or the like, or the like; R 5 is a hydrogen atom or the like; R 6 and R 7 are a hydrogen atom or the like; R 8 is C1-C3 alkyl or the like; R 9 is a hydrogen atom or the like), a prodrug, a pharmaceutically acceptable salt, or solvate thereof. |