The present invention provides a compound represented by the formula (1):whereinR1, R2 and R5 are each independently selected from a hydrogen atom, a halogen atom, a C1-C6 alkyl is substituted with a halogen atom and the like;R3 and R4 are each independently selected from a hydrogen atom, a halogen atom, a substituted C1-C6 alkyl group and the like;R6 and R7 are each independently selected from a hydrogen atom and a halogen atom;Z1 and Z2 are each independently selected from a hydrogen atom, a hydroxyl group and —O(CHR11)OC(═O)R12;Q is a group of the formula:(whereinG1 is C—Y2 or N;a ring A is a benzene ring or a 5- to 6-membered unsaturated heterocycle)a pharmaceutically acceptable salt thereof or a prodrug thereof.