Patent ID: 8470814

Claim:
A compound having the following formula (I) or a pharmacologically acceptable salt thereof: wherein R 1 represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms substituted with 1 to 3 halogen atoms, or an alkyl group having 1 to 3 carbon atoms substituted with phenyl; each of R 2 and R 3 independently represents a hydrogen atom, a halogen atom, hydroxyl, nitro, cyano, amino, carboxyl, carbamoyl, sulfamoyl, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms substituted with 1 to 3 halogen atoms, an alkoxy group having 1 to 8 carbon atoms substituted with 1 to 3 halogen atoms, an alkylamino group having 1 to 8 carbon atoms, a dialkylamino group having 2 to 8 carbon atoms, an acylamino group having 2 to 8 carbon atoms, an acylamino group having 2 to 8 carbon atoms substituted with 1 to 3 halogen atoms, an alkylsulfonylamino group having 1 to 8 carbon atoms, an acyl group having 2 to 8 carbon atoms, an alkoxycarbonyl group containing an alkoxy moiety having 1 to 8 carbon atoms, an alkylthio group having 1 to 8 carbon atoms, an alkylsulfinyl group having 1 to 8 carbon atoms, or an alkylsulfonyl group having 1 to 8 carbon atoms; each of R 4 and R 5 independently represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an alkyl group having 1 to 8 carbon atoms substituted with 1 to 3 halogen atoms, or an alkyl group having 1 to 3 carbon atoms substituted with phenyl; and W represents tetrazole, 1,2,4-triazole, 1,2,3-triazole, 1,2,4-oxadiazole, pyrazole, or imidazole, and optionally having a substituent selected from a group consisting of a halogen atom, cyano, oxo, thioxo, an alkyl group having 1 to 8 carbon atoms, and an alkyl group having 1 to 8 carbon atoms substituted with 1 to 3 halogen atoms.